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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: 10176 TechLake
T-SQL: JOIN OPERATORS - NESTED LOOP JOIN, MERGE JOIN AND HASH JOIN
 
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In this video, I will describe the 3 Join Operators SQL Server uses and the reason why it comes to the individual selections by the Optimizer. Please check my blog azizsharif.blogspot.com for more videos!
Hash Join
 
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#Oracle #HashJoin How a Hash Join is executed
Views: 2326 Hemant K Chitale
Hash Join on SQL
 
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Hash Join on SQL
Views: 332 TUTOR SC
SQL Advanced Videos #5: Hash Join
 
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The last of the three physical join operator and by far the most interesting one. However we pay a price in terms of memory for that interesting join :) #sql #database #hashjoin #hash #join
Views: 4043 SQL TV
AskTOM Office Hours: Hash Joins and Database In-Memory
 
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Held on April 20 2018 Andy Rivenes (@TheInMemoryGuy) and Maria Colgan (@SQLMaria) focused on a deep dive into hash joins and how they are used with Database In-Memory to make joins lightning fast. The session began by reviewing how traditional hash joins work and then addressed Bloom filters and how Database In-Memory uses them to effectively turn hash joins into scan and filter operations. The use of Join Groups was then discussed as a way to further enhance join performance in 12.2 and beyond. 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: 587 Oracle Developers
SQL Server Quickie #13 - Hash Join Operator
 
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In this SQL Server Quickie I'm talking about the Hash Join operator in SQL Server. You can find the scripts that were used for the demonstration here: http://www.sqlpassion.at/archive/2014/04/29/sql-server-quickie-13-hash-join-operator/
Views: 13363 SQLpassion
SQL Advanced Videos REUPLOAD #3: Nested Loop Join
 
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I talk about the first of three physical #join operator. We begin with #NestedLoopJoin, the most simple and known physical JOIN Operator in #SQL. This is a re-upload of my old video due to many complaints about the annoying background music. Join my discord: https://discord.gg/5aWE33f
Views: 1249 SQL TV
Query Tuning 101: How to Compare Execution Plans
 
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When you're tuning SQL query there's two important questions to keep in mind: * Have my changes made any difference? * If they have, is performance better or worse? In this video we'll look at how you can use SQL Developer to compare execution plans. This will enable you to differences between them and determine which plan performs better. ============================ The Magic of SQL with Chris Saxon 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: 15846 The Magic of SQL
What is the RANGE-HASH SUBPARTITIONS in Oracle ?
 
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Hi guys in my today scenario I'm going to explain with you What is the RANGE-HASH SUB-PARTITIONS in Oracle,Oracle database #RANGE-HASHSUBPARTITIONS Unbeatable,Unbreakable Platform..
Views: 1436 Oracle World
Nested Loop Join on SQL
 
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Nested Loop Join on SQl
Views: 200 TUTOR SC
11g Nested Loop
 
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#Oracle #NestedLoop 11g Enhancement
Views: 939 Hemant K Chitale
Hints and Tips - A silent movie on joins
 
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The vision says it all ... a basic primer on how joins are performed in Oracle, using the metaphor of playing cards. Enjoy... ========================================­============== 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: 2122 Connor McDonald
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
Oracle SQL Developer's Tuning Features
 
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An overview of all the performance tuning and diagnostic features in Oracle SQL Developer including: Explain Plan, Autotrace, SQL Tuning Advsior, Real Time SQL Monitoring, ASH, Monitoring Sessions, and our new Instance Viewer.
The Importance of Nested Loops Joins in SQL
 
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Nested Loops Joins are one of the primary physical join operators used by SQL Server. In today's episode we discuss how Nested Loops Joins work, as well as how to use that knowledge to troubleshoot a slow performing query's execution plan. Subscribe and turn on notifications to never miss a weekly video: https://www.youtube.com/c/bertwagner?sub_confirmation=1 Related blog post with code snippets: https://bertwagner.com/2018/12/11/visualizing-nested-loops-joins-and-understanding-their-implications/ Be sure to check out part 2 on merge joins: https://youtu.be/IFUB8iw46RI And part 3 on hash match joins: https://youtu.be/59C8c7p_hII Additional excellent blog posts that go further in-depth: https://blogs.msdn.microsoft.com/craigfr/2006/07/26/nested-loops-join/ https://sqlserverfast.com/epr/nested-loops/ Follow me on Twitter: https://twitter.com/bertwagner
Views: 1280 Bert Wagner
Does SQL table join order matter?
 
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Have you ever wondered if the order of the tables in your FROM clause matter? In today's video, we look at why theoretically table join order *does* make a difference for performance and why SQL Server doesn't use the order you provide. We also look at different techniques for forcing SQL Server to use the join order you specified. Blog post with all demo code and links: https://bertwagner.com/2017/11/21/does-the-join-order-of-my-tables-matter/ Presentation by Adam Machanic on row goals: https://sqlbits.com/Sessions/Event14/Query_Tuning_Mastery_Clash_of_the_Row_Goals Music by Joakim Karud http://youtube.com/joakimkarud Follow me on Twitter: https://twitter.com/bertwagner Want to receive my latest weekly blog posts and videos in your inbox? Sign up for the newsletter here: https://upscri.be/c77fc8/
Views: 2429 Bert Wagner
(오라클힌트교육,SQL튜닝)오라클힌트를 이용한 쿼리 튜닝, 중첩루프조인유도힌트, oracle hint/ordered/use nl_
 
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Hints for Join Orders(USE_NL) - USE_NL 힌트는 테이블을 조인 하는 경우 중첩 루프 조인(Nested Loop Join)이 일어나도록 하는 힌트 문장이다. 중첩 루프 조인은 중첩반복 이라고도 하는데 하나의 테이블(outer/driving table)에서 추출된 ROW를 가지고 일일이 다른 테이블(inner/probed table)을 반복해서 조회하여 찾아지는 레코드를 최종 데이터로 간주하는 방법 이다. - EMP 테이블과 DEPT 테이블을 조인하는 경우 DEPT 테이블이 건수가 작다면 우선 이 테이블을 외부 루프로 해서 하나씩 읽으면서 이에 대응하는 EMP 테이블의 데이터를 추출 하는 경우가 중첩 루프 조인에 해당 한다. 이때 EMP 테이블의 경우 대부분 조인 칼럼에 인덱스를 이용하는 것이 성능상 좋다. 즉 중첩 루프 조인은 테이블 중 적어도 하나의 조인 컬럼에 대해 인덱스(or Hash Index)가 존재할 때 연관되는 방식으로 이 중첩 루프 조인에서 테이블 중 하나의 테이블 또는 중간 결과 셋을 대상으로 FULL SCAN이 일어나게 된다.  보통 USE_NL 힌트 구문은 ORDERED 힌트 구문과 같이 사용되는데 USE_NL이 취하는 인자는 FROM절에서 두 번째 나오는 테이블(비드라이빙 테이블, inner/probed table)을 명시해 주어야 한다. 인수로 사용되지 않은 첫 번째 테이블이 드라이빙 테이블(outer table)이 된다. Hints for Join Orders(ORDERED)  힌트는 FROM 뒤에 기술되는 테이블의 순서대로 조인이 일어나도록 해주는 구문이며 대부분 단독으로는 사용되지 않고 USE_NL(중첩 루프 조인을 유도), USE_MERGE(머지 소트 조인을 유도), USE_HASH(HASH 조인을 유도)등과 같이 사용된다.  USE_NL/USE_MERGE/USE_HASH등의 인자로 사용되는 테이블은 FROM절에서 두 번째로 나타나는 테이블 이어야 하는데 FROM절에서 처음 나타나는 테이블이 드라이빙 테이블(OUTER/DRIVING TABLE)이 되고 나중에 나타나는 테이블이 PROBED TABLE(INNER TABLE)이 된다. 보통 드라이빙 테이블의 경우 데이터 건수가 적거나 조인 칼럼에 대해 인덱스가 없는 테이블이 주로 사용된다.  중첩 루프 조인(Nested Loop Join)이나 해시조인(Hash Join)의 경우 성능이 FROM절 뒤에 나타나는 테이블의 순서에 영향을 받지만 MERGE 조인은 영향을 받지 않는다. 머지 조인은 메모리에 올려서 정렬 시킨 후 병합하니까 실행 계획은 다르게 나올지 모르지만 성능에는 관계 없다.
Views: 395 이종철
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 Performance tuning explain plan in oracle performance tuning in oracle oracle tutorial for beginners explain plan in oracle 11g 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: 15299 Tech Query Pond
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: 318 DbVidya
Join Methods: Nested Loop, Hash, Sort, Merge, Adaptive
 
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Here is a replay of the live demo I did at POUG 2018 to explain the join methods. sql monitor to show the execution plan in real time and gdb breakpoints to stop on the different operations. I'll do the same at DOAG and maybe more. Follow https://medium.com/@FranckPachot/conferences-2018-7b821155591 to be informed.
Views: 751 Franck Pachot
Oracle 11g Hints Overview
 
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In this Video tutorial we will discuss about Optimizer hints in Oracle. What is optimizer hint, when & why its needed. Different Category of hints. Description of mostly used hints. Demonstrate how query plan can change with the influence of hint.
Views: 54130 Anindya Das
Nested Loop Join in SQL Server (by Satya Ramesh)
 
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In this video, you will learn about basics around Nested Loop join and how Nested Loop Join algorithm works. You will also learn about different scenarios where SQL Server decides to use Nested Loop Join operator and how it affects performance. 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 (Satya Ramesh) -Follow on Twitter: https://twitter.com/satyaramesh230 -Follow on FaceBook at https://www.facebook.com/satyaramesh230 -Follow on LinkedIN: https://www.linkedin.com/in/ramesh-sa... 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: 1889 SQLMaestros
SQL Server Execution Plan Query Hints
 
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SQL Server Execution Plan Query Hints
Views: 849 Geek Tamizhan
Hash Join
 
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Views: 10981 mrjazzs
Query Processing - Block Nested Loop Join, Index Nested Loop Join, Merge Join, Hash Join
 
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Complete set of Video Lessons and Notes available only at http://www.studyyaar.com/index.php/module/28-query-processing-and-optimization Block Nested Loop Join, Index Nested Loop Join, Merge Join, Hash Join http://www.studyyaar.com/index.php/module-video/watch/72-query-processing-more-join-algorithms
Views: 27912 StudyYaar.com
Sort Merge Join on SQL
 
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Sort Merge Join on SQL
Views: 208 TUTOR SC
Oracle Hints,
 
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Oracle Hints, Tips and advice - Hints and tips on various programming languages and development tools.
Views: 3864 018sube
14.412 Simple Hash Join
 
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My book "Patterns in Data Management" is now available both as an ebook or a print book (with color graphics!). See: http://amzn.to/1Ts3rwx This book is not a standard textbook on database techniques. This book was written extending and complementing preexisting educational videos (including this one). Video for my inverted classroom "Database Systems". The complete list of videos, slides, and additional material is (will be) available at http://datenbankenlernen.de Computer Science, Saarland University: Bachelor (in German): http://www.cs.uni-saarland.de/index.p... Master (in English): http://www.cs.uni-saarland.de/index.p... Ph.D./Grad School: http://gradschool.cs.uni-saarland.de/
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: 1427 Database Star
Hash Partitioning in Oracle
 
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The Video explains Hash partitioning in oracle and how it focuses on equal data distribution. It explains how hash partitioning uses partition joins to improve performance in VLDB by MPP.
Views: 7708 Tech Coach
What is a Hash Partition in Oracle
 
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What is a Hash Partition 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: 1336 TechLake
Focus on Hash Joins - Using Database In-Memory
 
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Ask TOM Office Hours demo - Focus On Hash Joins This demonstration reviews how Database In-Memory uses Hash Joins and Bloom filters to provide up to a 10x performance improvement. You can see the full session and join us for more Office Hours sessions at https://asktom.oracle.com/pls/apex
Focus on Hash Joins - Join Groups
 
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Ask TOM Office Hours demo - Focus On Hash Joins This demonstration reviews how Database In-Memory can use Join Groups to further improve hash join performance. You can see the full session and join us for more Office Hours sessions at https://asktom.oracle.com/pls/apex/f?p=100:551:::NO:551:P551_CLASS_ID:3843:
Merge Join Internals in SQL Server
 
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Without additional optimizations, SQL Server's Merge Join algorithm is the fastest physical join operator available. In this episode we dive into the internals to understand how the merge join algorithm works, as well as what it means for our query performance. Subscribe and turn on notifications to never miss a weekly video: https://www.youtube.com/c/bertwagner?sub_confirmation=1 Related blog post about Merge Joins: https://bertwagner.com/2018/12/18/visualizing-merge-join-internals-and-understanding-their-implications/ Be sure to check out part 1 on nested loops joins: https://youtu.be/0arjvMJihJo And part 3 on hash match joins: https://youtu.be/59C8c7p_hII The pessimistic costing of merge joins: https://dba.stackexchange.com/questions/165974/how-to-force-a-merge-join-without-a-hint/166054#166054 Going further in-depth with merge joins: https://sqlserverfast.com/epr/merge-join/ Follow me on Twitter: https://twitter.com/bertwagner
Views: 1238 Bert Wagner
VTS: The Oracle Optimizer...Great complexity, but...
 
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Oracle Ace Liron Amitzi presents an entertaining session about appreciating the Oracle Optimizer; exploring the stability of plans and examining new features that ruin your system performance, just when you get it tuned just right.
Views: 605 Database Community
How Does a Hint Affect an Adaptive Join?
 
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Since adaptive joins can control their behavior, using either a hash or a nested loops, what happens when you start putting join hints into the mix. Let's explore that and see how the adaptive join, the execution plan, and the query performance is affected. -~-~~-~~~-~~-~- Please watch: "Extended Events Live Data Window " https://www.youtube.com/watch?v=UDtXjewvqmM -~-~~-~~~-~~-~- #sqlserver #performancetuning #adaptivejoin
Views: 71 Grant Fritchey
Oracle SQL Tuning - Explain Plan Lies?
 
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Do you use EXPLAIN PLAN to tune Oracle SQL? Does it always "tell the truth", or does it "lie". (Maybe it's not the whole truth!) In this free tutorial from SkillBuilders' Oracle Certified Master John Watson, you will learn why the execution plan generated by EXPLAIN PLAN can be misleading and what to do about it. After a brief lecture, John demonstrates exactly why. You'll hear about dynamic sampling, adaptive cursor sharing (11g), adaptive execution plans (12c) and of course, bind variables. John demonstrates how bind variables cause misleading execution plans using dbms_xplan.display and dbms_xplan.display_cursor. To get the most from this tutorial, you should have some understanding of hard parse, soft parse, cardinality, histograms. See all SkillBuilders FREE Oracle Database tutorials at http://www.skillbuilders.com/free-oracle-tutorials.
Views: 3582 SkillBuilders
Join Elimination in Oracle
 
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What better way to improve performance than to actually remove some of your code? That's exactly what Oracle can do in some circumstances using join elimination. For more information see: https://oracle-base.com/articles/misc/join-elimination Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Pablo Ciccarello : Website: http://www.iristools.com/en/home/ Twitter: https://twitter.com/pablociccarello Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 979 ORACLE-BASE.com
Joins in SQL Server Execution Plans
 
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Understanding the different join types and where they apply is an important part of reading and understanding execution plans in SQL Server. I introduce the four joins; nested loops, hash, merge and adaptive. For more on adaptive joins, here's another video I made: https://youtu.be/Oxj3HilCnko #sqlserver #performancetuning #executionplan -~-~~-~~~-~~-~- Please watch: "Extended Events Live Data Window " https://www.youtube.com/watch?v=UDtXjewvqmM -~-~~-~~~-~~-~-
Views: 296 Grant Fritchey
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: 885 Fullon Baan
Table Partitioning in Oracle Sql|Hash Partitioning|Range Partitioning|List Partitioning|Partitioning
 
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Table Partitioning in Oracle Sql | Hash Partitioning | Range Partitioning | List Partitioning | Partitioning --------------------------------------------------------------------------------------------------------- hash partitioning,range partitioning,oracle hash partitioned index example,partition by range interval,when to use range partitioning,what is table partitioning,list partitioning,how to query partition table in oracle,partition, sql server, sql, partitioning in oracle, hash, performance, oracle, partitioning, list, range, interval partition, reference partition, composite partition, index partition, partition pruning, table partitioning, sql server table partition, table partition, hash partitioning, composite partitioning, sql server partitioning, sql server table partitioning, partition table, types of partitions, what is partition, advantages of partition, partition index, sql tutorials for beginners, sql expert, sql expert tutorials, database, oracle, table, online training,insert into oracle,oracle insert into multiple rows,create table oracle,oracle 12c alter table add identity column,oracle create table default value sysdate,collections in oracle pl sql with examples,Oracle 12c, database, oracle database (software), sql, sql developer, sql tutorials, how to create database using dbca, how to create database in oracle,oracle cloud, database 12c, dba genesis,database services, database, create, 11g, dba, db, beginner, Please Subscribe My Channel
Hash Partition in Oracle
 
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This course has been designed to impart the in-depth knowledge about the partitioning types and architecture in the Oracle RDBMS. For more information on this course, please visit https://www.koenig-solutions.com/oracle-database-12-c-implement-partitioning-training.aspx
Views: 106 Koenig Solutions
sub partitioning in oracle  or composite partitioning in Oracle RANGE-LIST, RANGE-HASH
 
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sub partitioning in oracle or composite partitioning 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: 853 TechLake
Oracle Hints and Tips - How to get a database installed for home exploring
 
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blog: https://connor-mcdonald.com Brand new to Oracle ... and want to get a basic installation up and running on your Windows laptop, with SQL Developer to access the database ?.... .... Here you go :-)
Views: 1224 Connor McDonald
Optimize Code with Merge Statement in Oracle PLSQL.
 
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Merge Statement in PLSQL not only optimize you code, it also make you code looks good and readable, save you from using a long and redundant code like using cursor loop, plsql collection object, all done with a few line of statement.
Views: 1163 Subhroneel Ganguly
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: 14124 OracleDBVision
Reference partitioning in Oracle 11g
 
09:50
The video explains Reference partitioning and its advantages in Oracle with real project example. It builds on the limitations of reference partitioning in oracle 11g (Interval partitioning) and scenarios where you should implement reference partitioning
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