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Oracle Hints - FIRST_ROWS - Example
 
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Excerpt from "Oracle sql tuning-advanced" video tutorial training. www.dbvidya.com/course/sql-tuning-advanced/ [email protected] +91 991 2323 000 Oracle Performance Tuning Online Training : http://www.dbvidya.com/course/performance-tuning-for-dba/ Oracle SQL Performance Tuning Training Online : http://www.dbvidya.com/course/sql-tuning-advanced/ Oracle Performance Tuning Videos Tutorial for DBA and Developers : http://www.dbvidya.com/oracle-performance-tuning-videos/ Oracle AWR Tutorial: http://www.dbvidya.com/course/oracle-awr/ Erwin Tool Online Training : http://www.dbvidya.com/course/erwin-tool/ ER Data Modeling Course : http://www.dbvidya.com/course/er-modeling/ Dimensional Modeling Training Online : http://www.dbvidya.com/course/dimensional-modeling/ Oracle Database Blogs : http://www.dbvidya.com/blog/
Views: 266 DbVidya
Hints and Tips - SQL*Plus tricks
 
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It's been around forever... but that does not make it obsolete. Here's how you can get the most out of SQL*Plus ========================================­­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 3453 Connor McDonald
Using Autotrace in SQL*Plus
 
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Demonstration of using autotrace in SQL*Plus, and how it can aid in performance tuning.
Views: 7999 Stephen Frein
Using Parallel and Cardinal Hint
 
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This is a demo on using Parallel and Cardinal Hint to tune queries in ILM.
Views: 1330 Informatica Support
Oracle 12C New Feature Listagg function improvements
 
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oracle 12c new features Queries used in the video are given in the blog link http://easy-learning-tech.blogspot.in/2018/04/oracle-12c-new-feature-listagg-function.html oracle 12c new features for developers
Views: 1313 Siva Academy
Oracle Database Tuning Introduction - Session 1
 
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This is the first lecture of the Oracle Database Troubleshooting and Tuning Class. The Full course is available on Udemy at https://www.udemy.com/oracle-database-troubleshooting-and-tuning You can use Coupon Code YOUTUBETT for discount Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 2885 Ramkumar Swaminathan
Partitioning in Oracle Explained with Real project Examples : Introduction
 
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This Video series will explain partitioning and its use cases referencing real project examples from different domain. It will explain what when and why of partitioning in a simple but elaborate manner. This is the 1st video which explains why partitioning is required and what are the advantages we gain from it. The following videos will explain when should we do it and how.
Views: 30080 Tech Coach
Oracle SQL Loader - Control File Example - Tutorial -2
 
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This is the second video on Oracle SQL*Loader tutorials. Here we talk about the heart of the Oracle SQL Loader i.e Control File with an example, the structure of the control file and how to write one. We discuss all this by looking at an SQL Loader example. We talk about the format of the data files and the advantages of using delimited data format against fixed width data format. What you will learn in this video 1. What is Control File in SQL Loader? 2. You will get an understanding on the various clauses of Control File like LOAD DATA, INFILE, INTO TABLE, FIELDS TERMINATED BY etc. 3. Example of Control File. If you would like to check the other tutorial videos on SQL Loader: First video visit https://youtu.be/fSV51bljrwY Third video visit https://youtu.be/yD_CL_cf8tQ If you would like to understand the advantages of delete over a truncate then visit the following video : Delete VS Truncate: https://youtu.be/u76wMm2byXo Check out our blog at: http://oracleplsqlblog.com/ #KishanMashru #Oracle #SqlLoader #ControlFile #Example #SqlLoaderConcept #SqlLoaderIntroduction #SQLandPLSQL #OracleSqlLoader #ETL #database
Views: 1389 Kishan Mashru
Oracle Database 12c: Partitioning Improvements with Tom Kyte
 
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Tom Kyte introduces the new partitioning improvements in Oracle Database 12c, followed by a demo of global index maintenance. For more information: "Asynchronous Global Index Maintenance for Dropping and Truncating Partitions" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=VLDBG14107 "Changes for Very Large Databases and Partitioning in Oracle Database 12c Release 1" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=VLDBG14100 "ALTER INDEX COALESCE Clause" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=SQLRF52782 "DBMS_PART.CLEANUP_GIDX Procedure" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=ARPLS74409
Views: 13950 OracleDBVision
Oracle 11g New Features : SQL Plan Management  (Baselining)
 
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Oracle 11g SQL Plan Management, a.k.a. Baselining, will solve the major issues of change control. We can give you an absolute guarantee - if you configure this as part of your upgrade - that SQL statement execution (performance) will never regress. You may also like our new and free Oracle 12c video tutorials, https://www.skillbuilders.com/free-oracle-database-tutorials . This tutorial is particularly relevant: it provides a review of baselining then reveals 12c performance features https://www.skillbuilders.com/free-oracle-database-tutorials/oracle-12c-sql-performance-features-agenda-session/
Views: 10295 SkillBuilders
ROWNUM - so simple yet so much confusion!
 
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ROWNUM just assigns a counter to the rows in your query result. So why did so many people get our simple quiz on rownum wrong ? blog: https://connor-mcdonald.com twitter: https://twitter.com/connor_mc_d Subscribe as new tech videos come every week!
Views: 689 Connor McDonald
PARTITION BY in Oracle SQL  | Oracle SQL Tutorials | By Mr.Murali
 
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PARTITION BY in Oracle SQL | Oracle SQL Tutorials | By Mr.Murali ►For Registration : https://goo.gl/r6kJbB ►Call: +91-8179191999 ► Visit Our Website: http://nareshit.in/ http://nareshit.com/ ► About NareshIT: "Naresh IT is the Best Software Training Institute for Hadoop, Salesforce, AWS, DevOps, Sprak, Data Science, Python, Tableau, RPA ,Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in Hyderabad, Chennai and Vijayawada, India which provides online and classroom training classes" ►For Registration : https://goo.gl/r6kJbB ►Call: India- 8179191999, USA- 404-232-9879 Email: [email protected] ►Our Online Training Features: 1.Training with Real-Time Experts 2.Industry Specific Scenario’s 3.Flexible Timings 4.Soft Copy of Material 5.Share Video's of each and every session. Check The Below Links: ►For Course Reg : https://goo.gl/r6kJbB ► Subscribe to Our Channel: https://goo.gl/q9ozyG ► Circle us on G+: https://plus.google.com/NareshIT ► Like us on Facebook: https://www.facebook.com/NareshIT ► Follow us on Twitter: https://twitter.com/nareshitech ► Visit Our Website: http://nareshit.in/ http://nareshit.com/
Views: 6043 Naresh i Technologies
Top Nine Coding Guidelines for Oracle PL/SQL
 
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My take, as of November 2015, of some of the most helpful guidelines to follow when writing PL/SQL code: 1. MAXSQL - maximize use of SQL first and foremost 2. SPOD - single point of definition 3. TRACE - production-available application-level tracing 4. LOG - consistent, encapsulated error logging 5. BULK - avoid row by row 6. OBVIOUS - make your code tell its own story, comment when it can't 7. NESTPROG - use nested subprograms 8. DECLARE - use declarative features of language 9. WARN - use compile-time warnings Accompanying blog post: http://stevenfeuersteinonplsql.blogspot.com/2015/10/your-ideas-for-more-important-plsql.html ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement. ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
AskTOM TV - The SQL Plus hash command
 
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A video to help you understand the "thought process" behind answering AskTom questions. In this episode, we talk about the hash (#) command for SQL Plus. blog: https://connor-mcdonald.com
Views: 699 Connor McDonald
COALESCE Function in SQL ORACLE Query With Example
 
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ORACLE/PLSQL: COALESCE FUNCTION The Oracle/PLSQL COALESCE function returns the first non-null expression in the list. If all expressions evaluate to null, then the COALESCE function will return null. The syntax for the Oracle/PLSQL COALESCE function is: coalesce( expr1, expr2, ... expr_n ) PARAMETERS: expr1 to expr_n are the expressions to test for non-null values. EXAMPLE: The COALESCE function can be used in Oracle/PLSQL. You could use the coalesce function in a SQL statement as follows: SELECT COALESCE( address1, address2, address3 ) result FROM suppliers; The above COALESCE function is equivalent to the following IF-THEN-ELSE statement: IF address1 is not null THEN result := address1; ELSIF address2 is not null THEN result := address2; ELSIF address3 is not null THEN result := address3; ELSE result := null; END IF; The COALESCE function will compare each value, one by one. Lets apply the same to emp table. We have some NULL values in comm and mgr columns. but not in any other columns. So lets take a example for this 2 columns. COALESCE(comm,mgr,sal) Here if comm is null, function returns mgr value. If mgr is null it returns sal value! Query used in video: SELECT ename,comm,mgr,sal,COALESCE(comm,mgr,sal) result FROM emp;
Views: 6468 WingsOfTechnology
flashback in Oracle | Oracle SQL Tutorial Videos | Mr.Vijay Kumar
 
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flashback in Oracle | Oracle SQL Tutorial Videos | Mr.Vijay Kumar ** For Online Training Registration: https://goo.gl/r6kJbB ► Call: +91-8179191999 💡 Visit Our Website for Classroom Training: https://nareshit.in/oracle-training/ 💡 For Online Training: https://nareshit.com/oracle-online-training/ #Oracle #Training #CourseVideos -------------------------- 💡 About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA , Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA, Hyderabad, Chennai and Vijayawada, Bangalore India which provides online training across all the locations -------------------------- 💡 Our Online Training Features: 🎈 Training with Real-Time Experts 🎈 Industry Specific Scenario’s 🎈 Flexible Timings 🎈 Soft Copy of Material 🎈 Share Videos of each and every session. -------------------------- 💡 Please write back to us at 📧 [email protected]/ 📧 [email protected] or Call us at the USA: ☎+1404-232-9879 or India: ☎ +918179191999 -------------------------- 💡 Check The Below Links ► For Course Reg: https://goo.gl/r6kJbB ► Subscribe to Our Channel: https://goo.gl/q9ozyG ► Circle us on G+: https://plus.google.com/+NareshIT ► Like us on Facebook: https://www.facebook.com/NareshIT ► Follow us on Twitter: https://twitter.com/nareshitek ► Follow us on Linkedin: https://goo.gl/CRBZ5F ► Follow us on Instagram: https://goo.gl/3UXYK3
Views: 16690 Naresh i Technologies
Analytics: 10 Window clause
 
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blog: https://connor-mcdonald.com Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, we take our first look at the final clause in our analytic syntax - the WINDOW clause The sample problem we'll solve is: How analytic aggregation returns two types of aggregates - either reporting or windowing aggregates. Scripts: https://livesql.oracle.com/apex/livesql/file/content_CQXSUXL3JBUOBC82NO9SKKGLE.html
Views: 683 Connor McDonald
Getting started With Toad for Oracle - in-depth tutorial
 
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https://www.quest.com/toad-for-oracle/ See an in-depth tutorial on Toad for Oracle, the solution from Quest that helps you reduce the time and effort required to develop and manage Oracle databases. Logging into Oracle: 1:03 Key windows: 2:42 Options: 15:08 Customizing the UI: 17:38 Toad editions: 20:27 More information: 22:40
Views: 52726 Quest
Calculate query performance with Explain Plan in Oracle PLSQL.
 
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Explain plan is a wonderful utility in Oracle PL SQL. It helps you to understand how much cost a query takes to perform based on indexed table or table without index. In this oracle tutorial a full description is given on a table containing huge number of rows first based on index on a column and then without index.
Views: 3808 Subhroneel Ganguly
Oracle Tuning Tutorial - Long Full Table Scans Part 2 of 5
 
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See all 5 tutorials, free, at SkillBuilders.com/OracleTuningFullTableScans Number Eight in the "Performance tuning Guide, Top Ten Mistakes Found in Oracle Systems" Long Full Table Scans is described as follows: "Long full table scans for high-volume or interactive online operations could indicate poor transaction design, missing indexes, or poor SQL optimization. Long table scans, by nature, are I/O intensive and unscalable." Actually, there are many cases where the full table scan is your friend. But whether they are good or bad for the performance of the SQL that invokes them, there may be implications (for better or for worse) for performance of other statements. This is particularly true in 11.2.x, where direct reads are possible for serial scans, and indirect reads are possible for parallel scans. Do you trust the optimizer? The change in behaviour in recent releases may need some investigation, and revisiting older code. As always with a SkillBuilders Tutorial, we shall illustrate the issues and solutions with live demonstrations using release 11g (11.2.0.3). Audience: Operating System Administrators, Storage Administrators, Oracle Administrators and Management responsible for Storage and / or Oracle Databases.
Views: 4594 SkillBuilders
Oracle 11g Online Training: Free Demo on Oracle 11g Training - Oracle 11g Job Oriented Training
 
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Oracle 11g Online Training: Free Demo on Oracle 11g Training - Oracle 11g Job Oriented Training Subscribe to OPTGHAR Online IT Training and Placements at: https://www.youtube.com/channel/UCBGjmPr7EXF0GZmhw4isicA?sub_confirmation=1 Watch more demo videos at: https://www.youtube.com/channel/UCBGjmPr7EXF0GZmhw4isicA Apply for Oracle 11g DBA online training at: http://www.optghar.com/it-training-courses/oracle-11g-online-training-placement-opt-cpt-students/43/20 For more information contact OPTGHAR.com at: 844-678-4427 (844-OPTGHAR) | [email protected] | http://www.optghar.com Oracle 11g – SQL & PL/SQL The Oracle database environment 1.Reviewing basic architecture concepts 2.Oracle 10g Architecture 3.Main features of 9i and 10g Basic SQL*PLUS commands 1.Using script files, START, @, GET, SAVE, LIST, PROMPT, PAUSE, ACCEPT, DEFINE, SPOOL Basic SELECT Statement 1.Writing the statement in sql plus, Running the SELECT statement Ordering the output 1.Single Column, Descending order, multiple column sorts Conditional retrieval of data 1.Working with complex conditions, AND OR NOT LIKE BETWEEN Working with variables 1.Creating and using variables, Command substitution Pseudo columns and functions 1.Pseudo Columns, Row num, Sys date, User & UID, the Dual Table 2.Working with character functions 3.UPPER, LOWER, INITCAP, RPAD(), RTRIM(), SUBSTR(), INSTR(), 4.TRANSLATE(), REPLACE(), GREATEST(), LEAST(), DECODE 5.Working with date functions 6.TO_CHAR(), TO_DATE(), MONTHS_BETWEEN(), ADD_MONTHS(), LAST_DAY(), NEXT_DAY() Using non-character function 1.ROUND (), TRUNC (), SIGN (), Working with multiple tables, Different type of Joins, Writing Outer Joins Using the SET operators 1.Union, Intersect, minus Aggregating data using group functions 1.GROUP BY, HAVING Creating Sub queries 1.Single Row sub queries, Multiple row Sub queries Enhancing groups function 1.ROLLUP, CUBE Transaction Control Language 1.Rollback, Commit, save point Processing hierarchies 1.creating the Tree structure, LEVEL, CONNECT BY Data Manipulation Language 1.INSERT, UPDATE, DELETE Data Definition Language 1.CREATE, TRUNCATE, ALTER, DROP, RENAME, DESCRIBE Using Declarative Constraints 1.Views, Sequences, Synonyms, Indexes, USER_TABLES, USER_TAB_COLUMNS, USER_OBJECTS, USER_IND_COLUMNS, USER_UPDATEABLE_COLUMNS, Materialized Views, Other Data dictionary views Database Security 1.Object Privileges, Granting access to objects Improving query performance 1.Planning and managing the tuning process, Employing tuning tools, Running EXPLAIN PLAN and auto trace, SQL Trace and TKPROF output, Optimizer concepts, Fundamentals of access paths, Gathering object and system statistics with DBMS_STATS, Utilizing hints and optimizer mode, Specifying first-rows optimization, Determining the driving table Other Concepts 1.The Relational Database Model, The system Development Lifecycle, Overview of normalization PL/SQL Blocks 1.Structure, Writing Anonymous Blocks Variables 1.Oracle Data types, TYPE and ROWTYPE declarations, Value assignments Control structures 1.IF ELSE ENDIF statement, IF ELSIF ELSE ENDIF statement, 2.LOOP END , LOOP statement, WHILE condition, FOR condition Cursors 1.Implicit and Explicit Cursors, Cursor Manipulation statements, 2.OPEN FETCH CLOSE EXIT WHEN Printing Values to Screen Procedures 1.Creating and Calling Procedures Functions 1.Creating and Calling Functions Packages 1.Package Header, Package Body Design Tips and Techniques 1.Format of standard packages in an application, Spec and Body, NOCOPY hint Triggers 1.Database triggers, calling procedures from triggers Dynamic SQL 1.EXECUTE IMMEDIATE, DBMS_SQL package Oracle Supplied packages 1.DBMS_OUTPUT, UTL_FILE Collection data types 1.Associative Arrays, Nested tables, VARRAYs Oracle 11g Online Training: Free Demo on Oracle 11g Training - Oracle 11g Job Oriented Training Subscribe to OPTGHAR Online IT Training and Placements at: https://www.youtube.com/channel/UCBGjmPr7EXF0GZmhw4isicA?sub_confirmation=1 Watch more demo videos at: https://www.youtube.com/channel/UCBGjmPr7EXF0GZmhw4isicA Apply for Oracle 11g DBA online training at: http://www.optghar.com/it-training-courses/oracle-11g-online-training-placement-opt-cpt-students/43/20 For more information contact OPTGHAR.com at: 844-678-4427 (844-OPTGHAR) | [email protected] | http://www.optghar.com
Oracle Midlands #6: Change the Way You Think About SQL Tuning with SQL Plan Management - Bjoern Rost
 
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This was the first talk of Oracle Midlands #6 (25th November 2014). Bjoern discusses the usefulness of using SQL Plan Management. The slides are available at https://www.dropbox.com/sh/t1jq0xnfxyk8x6l/AADklQXRVrC_4_dpbCJXbwJMa?dl=0 This event was sponsored by Red Gate (http://www.red-gate.com/). See more events at http://OracleMidlands.com/ Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. "Fair Dealing" under UK Copyright, Designs and Patents Act 1988.
Views: 665 Oracle Midlands
SQL tutorial 51: DECODE function in Oracle Database By Manish Sharma (RebellionRider)
 
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SQL Tutorial 51 Decode function in Oracle Database. ● What Is DECODE() ● DECODE ( ) vs CASE ● Syntax of DECODE() ● Query 1. String Matching using DECODE() ● Query 2. DECODE() comparing values form the COLUMN of the table Celebrating 1000 subscribers. Thanks a lot guys for all your love and support. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the first one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at [email protected] Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 35875 Manish Sharma
Real-World Performance - 8 - Set Based Parallel Processing
 
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Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as he demonstrates how set based parallel processing affects performance. Copyright © 2014 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
Learn Oracle | How to use the Merge Statement in SQL
 
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Pebbles present, Learn Oracle 10g with Step By Step Video Tutorials. Learn Oracle 10g Tutorial series contains the following videos : Learn Oracle - History of Oracle Learn Oracle - What is Oracle - Why do we need Oracle Learn Oracle - What is a Database Learn Oracle - What is Grid Computing Learn Oracle - What is Normalization Learn Oracle - What is ORDBMS Learn Oracle - What is RDBMS Learn Oracle - Alias Names, Concatenation, Distinct Keyword Learn Oracle - Controlling and Managing User Access (Data Control Language) Learn Oracle - Introduction to SQL Learn Oracle - Oracle 10g New Data Types Learn Oracle - How to Alter a Table using SQL Learn Oracle - How to Create a Package in PL SQL Learn Oracle - How to Create a Report in SQL Plus Learn Oracle - How to Create a Table using SQL - Not Null, Unique Key, Primary Key Learn Oracle - How to Create a Table using SQL Learn Oracle - How to Create a Trigger in PL SQL Learn Oracle - How to Delete Data from a Table using SQL Learn Oracle - How to Drop and Truncate a Table using SQL Learn Oracle - How to Insert Data in a Table using SQL Learn Oracle - How to open ISQL Plus for the first time Learn Oracle - How to Open SQL Plus for the First Time Learn Oracle - How to Update a Table using SQL Learn Oracle - How to use Aggregate Functions in SQL Learn Oracle - How to use Functions in PL SQL Learn Oracle - How to use Group By, Having Clause in SQL Learn Oracle - How to Use Joins, Cross Join, Cartesian Product in SQL Learn Oracle - How to use Outer Joins (Left, Right, Full) in SQL Learn Oracle - How to use the Character Functions, Date Functions in SQL Learn Oracle - How to use the Merge Statement in SQL Learn Oracle - How to use the ORDER BY Clause with the Select Statement Learn Oracle - How to use the SELECT Statement Learn Oracle - How to use the Transactional Control Statements in SQL Learn Oracle - How to use PL SQL Learn Oracle - Data Types in PL SQL Learn Oracle - Exception Handling in PL SQL Learn Oracle - PL SQL Conditional Logics Learn Oracle - PL SQL Cursor Types - Explicit Cursor, Implicit Cursor Learn Oracle - PL SQL Loops Learn Oracle - Procedure Creation in PL SQL Learn Oracle - Select Statement with WHERE Cause Learn Oracle - SQL Operators and their Precedence Learn Oracle - Using Case Function, Decode Function in SQL Learn Oracle - Using Logical Operators in the WHERE Clause of the Select Statement Learn Oracle - Using Rollup Function, Cube Function Learn Oracle - Using Set Operators in SQL Learn Oracle - What are the Different SQL Data Types Learn Oracle - What are the different types of Databases Visit Pebbles Official Website - http://www.pebbles.in Subscribe to our Channel – https://www.youtube.com/channel/UCNNjWVsQqaMYccY044vtHJw?sub_confirmation=1 Engage with us on Facebook at https://www.facebook.com/PebblesChennai Please Like, Share, Comment & Subscribe
Views: 1873 Pebbles Tutorials
Rewriting SQL queries for Performance in 9 minutes
 
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ENGLISH CAPTIONS AVAILABLE - SPANISH SUBTITLES - Full transcript (with some screenshots) available for a small fee at http://stores.lulu.com/konagora/. A brief example about how you can improve query performance by analyzing and rewriting queries.
Views: 73530 roughsealtd
Oracle Tutorials | Analytical Functions in Oracle | by Mr.Sudhakar L
 
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Oracle Tutorials | Analytical Functions in Oracle | by Mr.Sudhakar L Introduction to Analytic Functions Introduction to Analytic Functions in Oracle ** For Online Training Registration: https://goo.gl/r6kJbB ► Call: +91-8179191999 ► Visit Our Website for Classroom Training: https://nareshit.in ► For Online Training: https://nareshit.com/ -------------------------- ► About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA ,Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA,Hyderabad, Chennai and Vijayawada,Bangalore India which provides online training across all the locations -------------------------- ► Our Online Training Features: 1.Training with Real-Time Experts 2.Industry Specific Scenario’s 3.Flexible Timings 4.Soft Copy of Material 5. Share Videos of each and every session. -------------------------- Please write back to us at [email protected]/[email protected] or Call us at USA: +1404-232-9879 or India: +918179191999 ** Check The Below Links** ► For Course Reg: https://goo.gl/r6kJbB ► Subscribe to Our Channel: https://goo.gl/q9ozyG ► Circle us on G+: https://plus.google.com/NareshIT ► Like us on Facebook: https://www.facebook.com/NareshIT ► Follow us on Twitter: https://twitter.com/nareshitech ► Follow us on Linkedin: https://in.linkedin.com/company/naresh-i-technologies ► Follow us on Instagram: https://www.instagram.com/nareshitech/
Views: 2202 Naresh i Technologies
What is LAG Function in Oracle
 
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What is LAG Function in Oracle How to Get Previous Record in SQL How to Get Previous Salary in Oracle SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
Views: 410 TechLake
Analytical functions in oracle part 2
 
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First_value , Last_value functions
Views: 59 DataSmith
Welcome to the KISS (Keep It Simply SQL) Analytics series
 
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Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax ========================================­­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 5326 Connor McDonald
KISS series on Analytics: 13 FIRST_VALUE / LAST_VALUE in WINDOWS
 
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Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, we look at discovering the boundary values as defined by a WINDOW The sample problem we'll solve is: Compare life expectancy through the ages, with boundary value 5 years either side of the current value. Scripts: https://livesql.oracle.com/apex/livesql/file/content_CTQ60ECMLQDBA256F79UY1YZ5.html Watch the entire Analytics playlist at https://www.youtube.com/playlist?list=PLJMaoEWvHwFJDyhMLCkNSSUQWw9waFkIj ========================================­­­­­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1088 Connor McDonald
Destiny 2 - MORE Exotic Catalysts Farming!!
 
02:41:31
Click here to become a channel member!! https://gaming.youtube.com/channel/UCRkugl5iTKYNCHFsRZ_Xaow?action=sponsor You will get exclusive chat emotes, turn your chat name green, and get a kickass chicken next to your name in chat! In addition, sponsors always get their comments and questions prioritized and can help me choose the next custom emotes that I design! This functions in about the same way a Twitch subscription does. The chicken in chat will change colors based on how long you're a sponsor: New Sponsors: Black Chicken - Mikeuk73, CharlieTso, Arlo 1 Month: Silver Chicken - Algorithm EXR 2 Months: Golden Chicken - DeadricK, Skarrow Jr., The Mad Jedi 6+ Months: Crota Chicken - Nick Jergens, Psyfireman (More Coming Soon) Any tips are extremely appreciated, but never required! All support goes directly into making my content better for you guys!! https://youtube.streamlabs.com/skarrow9 ●Donation Noises Any amount - "Eris, get your rock off my map" - Cayde-6 $6.66 - Oryx's evil laugh $7.77 - Bungie = The Illuminati ●Sponsor Exclusive Custom Emotes: :SkarrowFail: :SkarrowSalt: :SkarrowHYPE: :SkarrowLuck: :SkarrowW00t: :SkarrowBean: :SkarrowSuper: ●Social Media: YouTube: (Hint: You're Watching it) Twitter: www.twitter.com/skarrow9 ●The Last Word Podcast Info: All community input is done near the end of each segment, as well as a segment exclusively at the end for any random questions. Drop your questions and thoughts in chat to be featured in the podcast!! ●Any Other Stream Info: Have fun Mother Chickens!! Please don't spam chat, but I always welcome and respond to questions!! Subs are appreciated, but only if you like my streams and videos!!
Views: 1658 Skarrow9
Performance Anti-Patterns: Non-query DML inside loops
 
14:03
Lots of code follows patterns. Some of the patterns are good ones, some them are bad - and these we call "anti-patterns." In this video, Steven identifies a common and, for many, surprising anti-pattern - and then shows how to turn it into a design pattern worthy of use. The anti-pattern is the execution on non-query DML (inserts, updates, deletes) inside a loop. The refactored positive design is based on bulk processing in PL/SQL. Along the way, Steven shows how this involves moving from row-by-row to phased processing. ================================================== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
KISS series on Analytics: 01 Ranking rows
 
03:30
Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, we look at how to assign a rank value to rows The sample problem we'll solve is: Show me the sequence in which everyone joined our company using RANK() Scripts: https://livesql.oracle.com/apex/livesql/s/ch1tefsz0mc75pk4ix2jbfja7 Watch the entire Analytics playlist at https://www.youtube.com/playlist?list=PLJMaoEWvHwFJDyhMLCkNSSUQWw9waFkIj ========================================­­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 3606 Connor McDonald
KISS series on Analytics: 17 The LAG / LEAD clauses
 
05:54
Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, we look at the lag and lead functions. The sample problem we'll solve is: Collapsing repeated rows in an order history table to show only the days where the order changed status Scripts: https://livesql.oracle.com/apex/livesql/file/content_CZUCT0MCOQZMJM7TI553HC8S9.html Watch the entire Analytics playlist at https://www.youtube.com/playlist?list=PLJMaoEWvHwFJDyhMLCkNSSUQWw9waFkIj ========================================­­­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1010 Connor McDonald
EXCEPTIONS IN ORACLE
 
57:04
EXCEPTION CONCEPT IN PLSQL
Views: 68 SAINAATTH PITTLA
KISS series on Analytics: 07 Partition clause
 
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Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, we take our first look at the partition clause The sample problem we'll solve is: Applying ranking functions to data when it is logically grouped into sections, in this case, populations of countries by continent Scripts: https://livesql.oracle.com/apex/livesql/file/content_ERYV6B909XK196IAKLBUQIJSN.html Watch the entire Analytics playlist at https://www.youtube.com/playlist?list=PLJMaoEWvHwFJDyhMLCkNSSUQWw9waFkIj ========================================­­­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1201 Connor McDonald
AskTOM TV - SQL Plan Directives from DBMS_XPLAN
 
06:15
A video to help you understand the "thought process" behind answering AskTom questions. In this episode, we look at how to identify which SQL Plan Directivees are being used for a given query blog: https://connor-mcdonald.com ========================================­­­­============== Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1010 Connor McDonald
Cary Millsap: Performance is a Feature
 
01:43:31
To many people who build and run software, "performance" is a side-effect, an afterthought of designing and building "proper" features like buttons that book orders and reports that explain profitability. But great performance at scale doesn't happen by accident. The first step to great performance is to remember what performance is: it is the answer to the question, "What have people been experiencing?" Knowing what people experience when they use your software is possible only if you treat performance as a proper feature--a feature you analyze, design, build, test, and maintain. This session for system owners, users, designers, developers, and DBAs discusses performance in terms that everyone can understand. It explains why so many in the Oracle ecosystem have lost sight of the basic notion that performance is an attribute of the end-user experience. It explains how performance should really be measured, and it explains the steps that will get you started. A live Q&A session with Cary Millsap follows the presentation.
Views: 2453 Redgate Videos
KISS series on Analytics: 08 Partition clause with aggregation
 
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Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, we combine partitioning with the first look at the aggregation functions available The sample problem we'll solve is: How to do a running total with analytics Scripts: https://livesql.oracle.com/apex/livesql/file/content_CPWDPU6R5I13KQG8EFUO5OPPZ.html Watch the entire Analytics playlist at https://www.youtube.com/playlist?list=PLJMaoEWvHwFJDyhMLCkNSSUQWw9waFkIj ========================================­­­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1090 Connor McDonald
KISS series on Partitioning: 02 Partitioning for Performance
 
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Welcome to the KISS video series on Partitioning, where we take a more developer-centric look at how partitioning can make our applications more successful. In this session, we take a first look at why partitioning can be a great help for faster queries blog: https://connor-mcdonald.com ========================================­­============== Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 959 Connor McDonald
Ask TOM Office Hours: SQL Analytics and Pattern Matching
 
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Held on February 8, 2018 Learn how to make the most of SQL with Chris Saxon, of the AskTOM answer team. Keith Laker joins Chris in this session focusing on problems you can solve using SQL analytic functions. It will also show you can use 12c's pattern matching (match_recognize) to solve these problems in another way. AskTOM Office Hours offers free, monthly training and tips on how to make the most of Oracle Database, from Oracle product managers, developers and evangelists. https://asktom.oracle.com/ Oracle Developers portal: https://developer.oracle.com/ Sign up for an Oracle Cloud trial: https://cloud.oracle.com/en_US/tryit music: bensound.com
Views: 629 Oracle Developers
Merge Statement
 
15:42
Views: 510 Saif Shaikh
KISS series on Analytics: 26  Hypothetical analytics and ratios
 
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Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, look at how even when data is not present, we can use analytics to get hypothetical results. For example, we can answer the question: "If an employee's salary was $1000, where would they sit within each department" Script: https://livesql.oracle.com/apex/livesql/file/content_DBCCAWYD3M9R9SVS21SUGK1Q5.html ========================================­­­­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 497 Connor McDonald
How to create Virtual Columns in Oracle Database
 
09:02
How to create Virtual Columns in Oracle Database 12c When queried, virtual columns appear to be normal table columns, but their values are derived rather than being stored on disc. The syntax for defining a virtual column is listed below. column_name [datatype] [GENERATED ALWAYS] AS (expression) [VIRTUAL] If the datatype is omitted, it is determined based on the result of the expression. The GENERATED ALWAYS and VIRTUAL keywords are provided for clarity only. The script below creates and populates an employees table with two levels of commission. It includes two virtual columns to display the commission-based salary. The first uses the most abbreviated syntax while the second uses the most verbose form. CREATE TABLE employees ( id NUMBER, first_name VARCHAR2(10), last_name VARCHAR2(10), salary NUMBER(9,2), comm1 NUMBER(3), comm2 NUMBER(3), salary1 AS (ROUND(salary*(1+comm1/100),2)), salary2 NUMBER GENERATED ALWAYS AS (ROUND(salary*(1+comm2/100),2)) VIRTUAL, CONSTRAINT employees_pk PRIMARY KEY (id) ); INSERT INTO employees (id, first_name, last_name, salary, comm1, comm2) VALUES (1, 'JOHN', 'DOE', 100, 5, 10); INSERT INTO employees (id, first_name, last_name, salary, comm1, comm2) VALUES (2, 'JAYNE', 'DOE', 200, 10, 20); COMMIT; Querying the table shows the inserted data plus the derived commission-based salaries. SELECT * FROM employees; ID FIRST_NAME LAST_NAME SALARY COMM1 COMM2 SALARY1 SALARY2 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 1 JOHN DOE 100 5 10 105 110 2 JAYNE DOE 200 10 20 220 240 2 rows selected. SQL The expression used to generate the virtual column is listed in the DATA_DEFAULT column of the [DBA|ALL|USER]_TAB_COLUMNS views. COLUMN data_default FORMAT A50 SELECT column_name, data_default FROM user_tab_columns WHERE table_name = 'EMPLOYEES'; COLUMN_NAME DATA_DEFAULT ------------------------------ -------------------------------------------------- ID FIRST_NAME LAST_NAME SALARY COMM1 COMM2 SALARY1 ROUND("SALARY"*(1+"COMM1"/100),2) SALARY2 ROUND("SALARY"*(1+"COMM2"/100),2) 8 rows selected. SQL Notes and restrictions on virtual columns include: 1)Indexes defined against virtual columns are equivalent to function-based indexes. 2)Virtual columns can be referenced in the WHERE clause of updates and deletes, but they cannot be manipulated by DML. 3)Tables containing virtual columns can still be eligible for result caching. 4)Functions in expressions must be deterministic at the time of table creation, but can subsequently be recompiled and made non-deterministic without invalidating the virtual column. In such cases the following steps must be taken after the function is recompiled: a)Constraint on the virtual column must be disabled and re-enabled. b)Indexes on the virtual column must be rebuilt. c)Materialized views that access the virtual column must be fully refreshed. d)The result cache must be flushed if cached queries have accessed the virtual column. e)Table statistics must be regathered. 5)Virtual columns are not supported for index-organized, external, object, cluster, or temporary tables. 6)The expression used in the virtual column definition has the following restrictions: a.It cannot refer to another virtual column by name. b.It can only refer to columns defined in the same table. c.If it refers to a deterministic user-defined function, it cannot be used as a partitioning key column. e.The output of the expression must be a scalar value. It cannot return an Oracle supplied datatype, a user-defined type, or LOB or LONG RAW.
Views: 549 OracleDBA
RANKING Functions in SQL SERVER Part II || ROW_NUMBER function in SQL SERVER 2014
 
03:49
This video will provide you the details of each RANKING Function in SQL Server 2014. RANKING function PART I https://www.youtube.com/watch?v=EKC35I73AXI *****************************************************************************8  ROW_NUMBER (Transact-SQL) Returns the sequential number of a row within a partition of a result set, starting at 1 for the first row in each partition.  Syntax ROW_NUMBER ( ) OVER ( [ PARTITION BY value_expression , ... [ n ] ] order_by_clause )  Arguments PARTITION BY value_expression Divides the result set produced by the FROM clause into partitions to which the ROW_NUMBER function is applied. value_expression specifies the column by which the result set is partitioned. If PARTITION BY is not specified, the function treats all rows of the query result set as a single group order_by_clause The ORDER BY clause determines the sequence in which the rows are assigned their unique ROW_NUMBER within a specified partition. It is required.  Return Types Bigint  General Remarks There is no guarantee that the rows returned by a query using ROW_NUMBER() will be ordered exactly the same with each execution unless the following conditions are true. 1. Values of the partitioned column are unique. 2. Values of the ORDER BY columns are unique. 3. Combinations of values of the partition column and ORDER BY columns are unique. ROW_NUMBER() is nondeterministic. Deterministic functions always return the same result any time they are called with a specific set of input values and given the same state of the database. Nondeterministic functions may return different results each time they are called with a specific set of input values even if the database state that they access remains the same. For example, the function AVG always returns the same result given the qualifications stated above, but the GETDATE function, which returns the current datetime value, always returns a different result.
Views: 29 Softtech forum
How to convert comma separated string into without comma separated in oracle pl/sql.
 
02:04
How to convert comma separated string into without comma separated in oracle pl/sql.
Views: 49 MOHD ADIL
Webinar: All About the Function Result Cache
 
01:08:47
Presented by Steven Feuerstein, Oracle Corporation The function result cache, added in Oracle Database 11g, offers developers a way to dramatically reduce the amount of time it takes to retrieve data requested repeatedly by database sessions (specifically, when the same rows of a table are fetched much more frequently than they are changed). This cache is stored in the SGA, shared across all sessions in the instance, and automatically purged of "dirty data" by the Oracle Database. Every application running on 11.1 or higher should be taking advantage of this feature. Best of all, there is minimal impact on your code to start using this feature.
Views: 1088 ODTUG
KISS series on Partitioning: 05 How to create a list partitioned table
 
04:33
Welcome to the KISS video series on Partitioning, where we take a more developer-centric look at how partitioning can make our applications more successful. In this session, we look at hash partitioning Scripts: https://livesql.oracle.com/apex/livesql/file/content_EXS3Y4LQGPTUGO223O3PGK2K9.html blog: https://connor-mcdonald.com ========================================­­============== Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 533 Connor McDonald

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