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Oracle Hints Tutorial for improving performance with examples
 
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Oracle Hints Tutorial for improving performance with examples Oracle Hints Oracle Tutorial for beginners SQL Tutorial for beginners SQL Hints SQL Performance tuning
Views: 3914 TechLake
Oracle Hints Tutorial for improving performance
 
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Oracle Hints Tutorial for improving performance APPEND PARALLEL JOIN INDEX NO_INDEX SELECT /*+ FIRST_ROWS(10) */ * FROM emp WHERE deptno = 10; SELECT /*+ ALL_ROWS */ * FROM emp WHERE deptno = 10; SELECT /*+ NO_INDEX(emp emp_dept_idx) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; SELECT /*+ INDEX(e,emp_dept_idx) */ * FROM emp e WHERE e.deptno = 10; -- SELECT /*+ INDEX(scott.emp,emp_dept_idx) */ * FROM scott.emp; SELECT /*+ AND_EQUAL(e,emp_dept_idx) */ * FROM emp e; SELECT /*+ INDEX_JOIN(e,emp_dept_idx) */ * FROM emp e; SELECT /*+ PARALLEL_INDEX(e,emp_dept_idx , 8) */ * FROM emp e; SELECT /*+ LEADING (dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; SELECT /*+ PARALLEL(8) CACHE (e) FULL (e) */ * FROM emp e ; SELECT /*+ PARALLEL FULL (e) */ * FROM emp e ; SELECT /*+ PARALLEL USE_MERGE (emp dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; -- SORT Merge Join SELECT /*+ PARALLEL USE_HASH (emp dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; -- Hash Join SELECT /*+ PARALLEL */ * FROM emp e ; INSERT /*+ APPEND */ INTO mytmp select /*+ CACHE (e) */ *from emp e; commit;
Views: 8572 TechLake
Hints
 
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Hints watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
SQL: Optimizer Hints Part-1
 
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In this tutorial, you'll learn...what are optimizer hints and how to use it.. SQL (pronounced "ess-que-el") stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems.
Views: 20467 radhikaravikumar
SQL: Optimizer Hints Part-2
 
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In this tutorial, you'll learn...what are optimizer hints and how to use it.. SQL (pronounced "ess-que-el") stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems.
Views: 11816 radhikaravikumar
SQL: Optimizer Hints Part-3
 
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In this tutorial, you'll learn...what are optimizer hints and how to use it.. SQL (pronounced "ess-que-el") stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems.
Views: 10613 radhikaravikumar
Oracle Performance Tuning - Materialized View
 
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How to create and refresh materialized view
Views: 3685 Saurabh Kumar
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: 226 DbVidya
What is a Materialized View?
 
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http://zerotoprotraining.com This video explains the concept of a materialized view in a database also known as materialized query table an indexed view. Category: Databases Tags: Materialized View
Views: 108430 HandsonERP
Oracle Hints,
 
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Oracle Hints, Tips and advice - Hints and tips on various programming languages and development tools.
Views: 3852 018sube
Optimizer Statistics
 
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Optimizer Statistics watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
Missing Index Hints in SQL Server Management Studio by Amit Bansal
 
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In this video, you will learn why you should not blindly follow the SSMS Missing Index Hints. Video resources including presentation, demo files, code snippets and more learning material is available on http://www.dataplatformgeeks.com/ (Join for free and access all the resources) Connect With The Speaker (Amit Bansal) -Follow on Twitter: https://twitter.com/A_Bansal -Follow on FaceBook at http://www.facebook.com/amit.r.bansal -Follow on LinkedIN: http://www.linkedin.com/in/amitbansal2010 -Facebook Page: https://www.facebook.com/AmitRSBansal/ Connect with SQLMaestros: http://sqlmaestros.com/ -http://www.twitter.com/SQLMaestros -https://www.facebook.com/SQLMaestros -Email us: [email protected] Have technical questions? Join the largest SQL group on FB www.facebook.com/groups/theSQLGeeks Our LinkedIn group https://www.linkedin.com/groups/6753546 DataPlatformGeeks (DPG) Community Join the fastest growing community of data & analytics professionals Why Join DPG? http://www.dataplatformgeeks.com/ -Attend all events hosted by DPG, including SQLMaestros Special Events -Get access to free videos, labs, magazines and host of learning resources -Download all events & conference material -Learn new skills. Sharpen existing skills -Be part of Asia’s Largest Data/Analytics Community -Opportunity to be a regional mentor & speaker at our events -Immense technical & professional development Do you know about Data Platform Summit? http://www.DPS10.com
Views: 1281 SQLMaestros
SQL 12c Tutorial 17 :  SQL Inline View Sub-Queries examples
 
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SQL 12c Tutorial 17 : SQL Inline View Sub-Queries examples SQL 12c Tutorial for beginners Oracle SQL 12c Tutorial for beginners SQL In Line Views SQL Sub Queries
Views: 1443 TechLake
05 Query Hints
 
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Views: 444 Moto Nobre
Execution Plan Example 4
 
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Get the complete course on SQL Tuning(Regular price $199) for only $10 https://www.udemy.com/sql-tuning/?couponCode=UDEYOU
Views: 2346 Oracle Training
Oracle sql materialized view refresh complete
 
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Oracle sql materialized view refresh complete
Views: 7400 Sridhar Raghavan
Hive views, performance optimization using Hints
 
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The first part demonstrates on MapJoin Hint in Hive. Second part demonstrates on views and explode concepts. Good video on Hive Hints and Views for beginners.
Views: 431 Haha Skills
Four Steps to Oracle SQL Tuning  - A Methodolgy
 
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Learn a predictable and repeatable methodology for tuning Oracle SQL statements. Just four steps that you should always follow when tuning an SQL statement. (Note this video does not contain examples of how to apply the four steps, just what the steps are.) Oracle Certified Master John Watson presents. John concludes with a brief overview of how SkillBuilders SQL tuning course provides the information you need to apply the four steps. Learn more about SkillBuilders SQL Tuning course http://skillbuilders.com/oracle-sql-tuning-training 1. What is Oracle doing? (explain plan, trace) 2. Why is Oracle doing it that way? (analyze the execution plan) 3. Is there a better way? Test! 4. If there's a better way, push the CBO towards the better way.
Views: 13702 SkillBuilders
How can I speed up a query if an index cannot help?
 
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blog: connor-mcdonald.com Highlights from the April DBA Office Hours session. Office Hours is 100% free Q&A sessions held every month by Oracle experts to help you succeed with the Oracle suite of technologies. Music: Smells Like Summer - Del (Vlog Music No Copyrighted) Video Link: https://youtu.be/IrkMsqcOjGU
Views: 1328 Connor McDonald
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: 1324 Informatica Support
Oracle Explain Plan basics
 
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This video gives basic understanding of Oracle Explain plan and will help to understand execution plan terminology.
Views: 15078 amit wadbude
SQL Query Hints
 
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Hints are options and strong suggestions specified for enforcement by the SQL Server query processor on DML statements.
Views: 832 Fullon Baan
Optimizing SQL Performance
 
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Held on July 12 2018 In July's session we mainly looked at performance. Highlights include: 1:30 How does the database process subqueries? 5:20 Performance: comparing insert ... select to create tmp table, insert select from tmp; DDL in PL/SQL; dynamic SQL problems 12:45 18c private temporary tables; tables specific to a session; DDL you can rollback across! 21:00 Improving update performance: things to watch for; insert vs. update; "join-update" - create a view instead; create table as select "update" 34:05 Analytic function performance: first_value non-determinism; min keep vs first_value; computing function in a subquery; indexes for analytic functions 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: 570 Oracle Developers
Slow SQL Query? Get the Plan in Oracle SQL Developer!
 
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See how to get execution and explain plans, format and views those plans, use AutoTrace, and Real Time SQL Monitoring for your SQL queries in Oracle SQL Developer.
Views: 3094 Jeff Smith
How to utilize Real-Time Materialized Views
 
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The clip explains and demonstrates this 12cR2 enhancement. Text version is here: https://uhesse.com/2017/01/05/real-time-materialized-views-in-oracle-12c/
Oracle SQL MERGE Statement
 
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https://www.databasestar.com/oracle-merge-sql/ In this video, we’ll learn what the Oracle MERGE statement does and how you can use it. What is the MERGE statement? It’s a statement that lets you either insert or update data in a table - all in a single statement! It’s helpful if you’re using an ETL (Extract Transform Load) process when creating or updating a data warehouse. It’s also helpful when loading data into your own database if you’re not creating a data warehouse. It allows you to prevent duplicate data and ensure you have up-to-date data in your table. The syntax looks like this: MERGE INTO table_name USING table_name ON (condition) WHEN MATCHED THEN update_clause DELETE where_clause WHEN NOT MATCHED THEN insert_clause [LOG ERRORS log_errors_clause reject_limit integer | unlimited ] In this video, I also show an Oracle SQL MERGE statement example, so watch the video to find out more. For more information on the MERGE statement and how you can use it in your queries, read the related article here: https://www.databasestar.com/oracle-merge-sql/
Views: 962 Database Star
PL/SQL: Materialized Views Part-2
 
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In this tutorial, you'll know what are materialized views
Views: 25131 radhikaravikumar
Oracle Database Performance Tuning - Optimizer Statistics Gathering
 
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In this video we explain how to gather the database optimizer statistics #performancetuning, #oracledatabase, #oracle, #database, #optimizerstatistics, #learning, About Optimizer Statistics Collection In Oracle Database, optimizer statistics collection is the gathering of optimizer statistics for database objects, including fixed objects. The database can collect optimizer statistics automatically. You can also collect them manually using the DBMS_STATS package. Purpose of Optimizer Statistics Collection The contents of tables and associated indexes change frequently, which can lead the optimizer to choose suboptimal execution plan for queries. To avoid potential performance issues, statistics must be kept current. To minimize DBA involvement, Oracle Database automatically gathers optimizer statistics at various times. Some automatic options are configurable, such enabling AutoTask to run DBMS_STATS. Stats collection Stats gathering database performance tuning, 10g, 11g 12c database administration
Views: 398 KINGS TUBE
Oracle SQL Tutorial : Using execution plan to optimize query in oracle
 
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Oracle SQL Tutorial Oracle tutorial: Explain plan for query optimization in Oracle PLSQL oracle tutorial for beginners using execution plan to optimize query sql query analyzer sql query cost analysis https://techquerypond.wordpress.com This oracle tutorial show you how to use EXPLAIN PLAN in oracle. This video covers how to check cost of the query from DBMS_XPLAN.DISPLAY . You can find the cost of the query using the Using EXPLAIN PLAN FOR and based on the result you can optimize the query for faster performance. Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://twitter.com/techquerypond
Views: 13270 Tech Query Pond
Oracle Materialized Views
 
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Oracle Materialized Views
Views: 397 The Silent DBA
7 Differences between oracle views  and Materialized views
 
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http://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: 652 DbVidya
SQL: Explain Plan for knowing the Query performance
 
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In this tutorial, you'll learn how to compare queries to know the better performance query..
Views: 99601 radhikaravikumar
Oracle Performance Tuning - Preparing database - Upload data using SQL Develooper
 
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Connect with me or follow me at https://www.linkedin.com/in/durga0gadiraju https://www.facebook.com/itversity https://github.com/dgadiraju https://www.youtube.com/c/TechnologyMentor https://twitter.com/itversity
Views: 5769 itversity
Oracle Partitioning
 
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Oracle Partitioning watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
ORACLE WORLD - Materialized view Part #1st
 
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Hello friends in this video i'm giving you Introduction of Materialized view, why we use it and what is the advantage of MV. Oracle database Unbeatable,Unbreakable Platform.. #ORACLEWORLD #Materializedview By Lalit saini
Views: 7162 Oracle World
SQL: Optimizer- RBO/CBO (Part-1)
 
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In this Tutorial, you will know what is RBO and the disadvantages of it..
Views: 11036 radhikaravikumar
SQL Tuning Methods and Tools
 
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SQL Tuning Methods and Tools watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
Oracle Tutorial || Oracle|Adv Sql | Partitioned Table Part - 4 by basha
 
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How to create a View in Oracle Database with SQL.
 
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This is a online training video o oracle tutorial on how to create a view in Oracle. How it is stored in database. Just not mentioned one thing that how to view the view. Just type desc view name.
Views: 5250 Subhroneel Ganguly
PL/SQL Table Functions
 
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Held on September 3 2018 Table functions are very cool: they are functions that return collections, and can be called in the FROM clause of a SELECT, as if it were a table or view. In this session, Steven Feuerstein starts with a quick intro to and demos of table functions. We then shift to answering your questions on this useful feature, including (new to 18c) polymorphic table functions and interactions between table functions and the SQL optimizer. 1:54 Whirlwind overview of table functions 9:48 LiveSQL demonstrations 24:42 Q&A: Materialized views and table functions 25:56 Q&A: Recommendations for organizing types needed for table functions 28:44 Introduction and overview of 18c polymorphic table functions 40:30 Table functions and the SQL optimizer 48:17 Table functions and SmartDB 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: 1010 Oracle Developers
How Reverse Key B*Tree Index Helps in Certain Cases
 
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When to use Reverse B * Tree Index For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 10722 Oresoft LWC
SQL Tutorial for beginners : What is Global temporary Tables in Oracle
 
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What is Global temporary Tables 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: 720 TechLake
Oracle SQL Loader - Introduction - Tutorial -1
 
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This video is the first tutorial on Oracle SQL*Loader utility. This video gives the introduction and helps in understanding the concept behind Oracle SQL Loader. Why it should be used and the advantages of using it. SQL Loader is a bulk loader utility used for moving data from external files into the Oracle database tables. In this video we look at the overview of Oracle SQL Loader, we look at the complete flow of the process. It's basically a Conceptual introduction to the SQL Loader utility. What you will learn in this video 1. What is SQL Loader? 2. You will get an understanding on the Components of SQL Loader like control file, Log file, Discard File and Bad file. 3. Complete flow of the process. Visit the other videos on the same : Second video visit https://youtu.be/ogidUWHHRL8 Third video visit https://youtu.be/yD_CL_cf8tQ Check out the advantages of using TRUNCATE over a DELETE from the following video: Delete VS Truncate : https://youtu.be/u76wMm2byXo #KishanMashru #Oracle #SqlLoader #SqlLoaderConcept #SqlLoaderIntroduction #SQLandPLSQL #OracleSqlLoader #ETL #database
Views: 950 Kishan Mashru
Access Paths
 
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Access Paths watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
SQL: Optimizer- RBO/CBO (Part-2)
 
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In this Tutorial, you will know what is CBO and the advantages of it..
Views: 8236 radhikaravikumar
002 Virtual Columns
 
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Views: 585 Kartik Mundhra
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: 1071 Kishan Mashru