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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: 5003 TechLake
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: 50979 Anindya Das
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: 19211 radhikaravikumar
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: 2045 TechLake
Oracle Indexes - Beginner
 
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Oracle Indexes - Beginner
Views: 63950 Chris Ostrowski
Stop Rebuilding Global Indexes! Oracle 12c Global Index Maintenance
 
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Stop rebuilding Global Indexes! Stop worrying about invalidating Global Indexes! Oracle 11g gave us "UPDATE GLOBAL INDEXES". 12c provides a huge improvement: orphaned_entries! In this tutorial, Oracle Certified Master John Watson demonstrates how 11g and 12c handle Global Index maintenance with orphaned entries and overnight maintenance job PMO_DEFERRED_GIDX_MAINT_JOB.
Views: 2278 SkillBuilders
Oracle Performance Tips - Indexes
 
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Learn about index and types of indexes.
Views: 1993 Saurabh Kumar
Oracle || Indexes Part-3 by dinesh
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
Oracle || Indexes Part-2 by dinesh
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
Oracle: Tune Your SQL Without Hints or Indexes! - Long Introduction
 
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"But I can’t change the queries that run in my database,” you say. Not a problem! This webinar we explore the underutilized art of rewriting a SQL query in order to make it run faster. I'll show you how to make your SQL query performance skyrocket simply by changing the SQL text. But even if you truly can't change the SQL, I'll also demonstrate how you can hurdle this issue too. This webinar will be presented by our most active OraPub SLACK member, Kaley Crum! To watch the full webinar go to www.oraoub.com/webinars
Views: 23 OraPub, Inc.
07 06 Index Skip Scan Operations
 
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ORACLE
Views: 767 oracle ocm
SQL: FBI(Functional Based Indexes)
 
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In this tutorial, you'll learn how to create FBI...
Views: 12583 radhikaravikumar
SQL: Inroduction to Indexes
 
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In this tutorial, you'll learn what is indexing!, why we need and how we can create indexes...
Views: 23684 radhikaravikumar
Why Use Parallel Processing?
 
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This video compares the use of parallel and serial processing for the same SQL query. Copyright © 2012 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.
INDEX PARTITIONING oracle
 
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index partioning in oracle
Views: 280 oracle dba tutorial
[Oracle SQL Performance Tuning: 4/4] Basic Hints and their Usage
 
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This presentation explains how to use basic hints of Oracle. The series of SQL tuning videos presents performance tuning tips for developers
Views: 10208 anilkumar ghorakavi
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: 11089 radhikaravikumar
Oracle SQL Tuning Expert Series - Understanding Indexes
 
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Ross Leishman of DWS Ltd presents the principles of Understanding Indexes for SQL Tuning. The presentation includes an entertaining demonstration of Indexes featuring DWS Alumnus Jordan Thomas as a "Buffer Cache". DWS Ltd is a leading publicly listed Australian IT Services company, providing services to blue chip organisations since 1991. With a business philosophy based upon integrity, reliability and professional service delivery, DWS provides end to end IT solutions. www.dws.com.au
Views: 43412 DWS Ltd
Oracle Hints explained
 
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Oracle Hints
Views: 348 Telugu Blast News
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
FTS vs Index Scan  Part 2
 
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Discusses "When Full table scan is recommended and when index scan is suggested" -small excerpt from "Oracle Performance tuning" http://www.dbvidya.com/blended-training/ [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: 89 DbVidya
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: 10007 radhikaravikumar
Efficient Function Calls From SQL (Part 6) : Function-Based Indexes
 
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The sixth part of a mini-series of videos showing how you can improve the performance of function calls from SQL. In this episode, we look at using function-based indexes to improve the performance of queries that use function calls in the WHERE clause. For more information see: https://oracle-base.com/articles/8i/function-based-indexes https://oracle-base.com/articles/misc/efficient-function-calls-from-sql#functions-in-the-where-clause Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Ronald Bradford : Blog: http://ronaldbradford.com/blog/ Twitter: https://twitter.com/RonaldBradford Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 1390 ORACLE-BASE.com
Multiple Indexes on the Same Set of Columns
 
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This video demonstrates how you can use invisible indexes to allow multiple indexes on the same set of columns. Multiple indexes on the same column set is a new feature in Oracle 12c. For more information see: https://oracle-base.com/articles/12c/multiple-indexes-on-same-set-of-columns-12cr1 Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Scott Spendolini Blog: http://spendolini.blogspot.co.uk/ Twitter: https://twitter.com/sspendol Website: http://www.sumnertech.com/ Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 1225 ORACLE-BASE.com
Reverse Key Index :Types of Btree Index in Oracle
 
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Please subscribe to my new channel. https://www.youtube.com/c/AnIndianAbroadd The Videos explains how Reverse Btree Index works and in what condition they shall be used. Reverse Btree index are used to solve index block contention. You can't perform range scans in reverse btree Index.
Views: 1557 Tech Coach
Tune Your Oracle SQL Without Hints or Indexes! - Preview Introduction
 
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“But I can’t change the queries that run in my database,” you say. Not a problem! This webinar we explore the underutilized art of rewriting a SQL query in order to make it run faster. I'll show you how to make your SQL query performance skyrocket simply by changing the SQL text. But even if you truly can't change the SQL, I'll also demonstrate how you can hurdle this issue too. This webinar will be presented by our most active OraPub SLACK member, Kaley Crum! Go Kaley!! This webinar will be on Wed Sept 12th 2018 at 7am PT. For details on how you can see the full webinar or webinar recording post date, go to www.orapub.com
Views: 29 OraPub, Inc.
PL/SQL tutorial 57: PL/SQL Collection Associative Array in Oracle Database
 
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Manish Sharma from RebellionRider presents you the latest PL/SQL tutorial on Collection ASSOCIATIVE ARRAY. In this video, you will learn – - What are Associative Arrays? - How to create Associative Arrays? - How to Insert & Update the data of Associative Array and - How to retrieve the data from an Associative array using two different ways? So if you are wondering whether associative array is a persistent form of collection or not; Is it bounded or unbounded in nature; why should we use this specific collection over others such as VARRAY or Nested Table; What are the differences or similarities between associative array and other collections? Then go ahead and watch the video to find out the answers to all these questions. Hope you will enjoy watching. Do make sure to Like and Share this post/video because that will help others in learning as well as help me and my channel in reaching out. This way we can educate more and more people for FREE. Most importantly SUBSCRIBE to the channel as many such interesting tutorials are coming your way. Thanks. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/associative-array Previous Tutorial ►While Loop: https://youtu.be/IIlc4Sr7kFE ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the About section 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: 11193 Manish Sharma
Oracle Parallel Execution Plans Deep Dive
 
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A presentation about understanding the essentials of Oracle Parallel Execution and how to read the corresponding execution plans
Views: 2678 Randolf Geist
Indexing in Oracle :B-Tree,Bitmap Indexing
 
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This Video is the 1st tutorial in the video series Indexing in Oracle , The video series explains in detail, What are indexes?It's types, what index should be used in which scenario and other important thing in basic terminology. Note :You may want to watch the video with a higher playback speed(1.25 if it suits you more)
Views: 10409 Tech Coach
Local Vs Global Partitioned Index in Oracle 11g
 
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The Video Explains the difference between Local Partitioned Indexes(Prefixed vs Non Prefixed Indexes). and Global Partitioned Index along with the challenges in maintaining Global partitioned Indexes when the underlying tables partitioned is dropped/truncated/Merged/Moved. Local Partitioned Index Shares the same boundaries as the table and are in the same number as table partitions they are widely used in DSS and DWH systems. While Global Partitioned Index are predominantly used in OLTP systems
Views: 4700 Tech Coach
A Story of Indexes and Full Table Scans: Finding All the Red Sweets Part 1
 
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"Why isn't Oracle using my index?!" is a common question people have when tuning SQL queries. In this episode Chris compares two methods for finding all the red candies from party bags he's prepared. He shows how these are like a full table scan and an index range scan. He goes on to compare the performance of these two approaches. He shows when a full table scan becomes more efficient than an index range scan and vice versa. ============================ 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: 7506 The Magic of SQL
Efficient Function Calls From SQL (Part 2) : The DETERMINISTIC Hint
 
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The second part of a mini-series of videos showing how you can improve the performance of function calls from SQL. In this episode, we take a look at the DETERMINISTIC hint. For more information see: https://oracle-base.com/articles/misc/efficient-function-calls-from-sql#deterministic-hint Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Dana Singleterry : Blog: https://blogs.oracle.com/dana/ Twitter: https://twitter.com/dsingleterry Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 2217 ORACLE-BASE.com
Indexes in Oracle :Index Scan Methods :Part 2
 
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The Video Explains when should you create indexes. The difference between Simple and composite Index, Relevance of order in composite indexes and Index Scan Methods in detail. 1.Index Unique scan 2.Index Range Scan 3. Index Skip Scan 4. Fast full Index Scan 5. Full Index Scan If you have any questions just drop in a comment
Views: 5247 Tech Coach
Oracle SQL Performance Tuning  1
 
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Oracle SQL Performance Tuning and tips Cost Based Optimizer (CBO) Rule Based Optimizer (RBO) SQL Explain Plan Oracle Explain Plan
Views: 9576 TechLake
SQL: Types of Indexing
 
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In this tutorial, you'll learn how to make use of different indexes...
Views: 31603 radhikaravikumar
What do you mean the Oracle Optimizer won't use my Index
 
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Learn some details about how the Oracle optimizer works with Themis instructor John Mullins.
Views: 548 Themis Education
BITMAP  and  BITMAP JOIN INDEX IN ORACLE explained
 
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The video explains BITMAP and BITMAP JOIN INDEX IN ORACLE and when you should create them on a column. BITMAP INDEXES should be dealt with carefully as they can lead to serious performance issues if the table is updated by multiple processes in parallel. Indexing Basics :https://www.youtube.com/watch?v=0X9bbtwTnuE&t=1095s Star and snowflake Schema :https://www.youtube.com/watch?v=Qq4yhhAk9fc&t=17s
Views: 2500 Tech Coach
SQL Hints, Tips, Tricks, and Tuning
 
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What is the difference between inner, outer, cross and natural join? What is a correlated subselect? What is the advantage and what the disadvantage of an index. Is NOT and OR evil? When do I need normalisation and when denormalisation? All this questions and lots of other performance tips and tricks on SQL level will be given in the talk.
Views: 14635 Andrea Ross
SQL Tutorial For Beginners SQL INDEXES  BITMAP and B-Tree
 
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Oracle SQL Index types with examples. Simple Index, Composite Index, Unique Index, Non Unique Index, Bitmap Index, B-tree Index. SQL Tutorial SQL Tutorial for beginners Oracle SQL Tutorial for beginners
Views: 20348 TechLake
Introduction to Basics of a Query Hint - SQL in Sixty Seconds #013
 
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This video explains the fundamentals of the SQL Server Query Hints. Visit http://bit.ly/KH9u8I for Script, Quiz and further learning.
Views: 8603 Pinal Dave
How to Tune SQL when You Can't Edit the Source Code, Part 1 of 2
 
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Learn Oracle SQL Tuning! How do you add a hint to SQL you can't edit? How do you tune SQL if you don't have access to the source code? Sometimes, Oracle indexes, statistics, stored outlines, profiles or 12c directives will solve a tuning problem. However, as a last resort, you may want to add a hint. In this case DBMS_ADVANCED_REWRITE can be the solution. In this tutorial, Oracle Certified Master DBA John Watson of SkillBuilders demonstrates using DBMS_ADVANCED_REWRITE to change the SQL Oracle executes - without changing the source code!
Views: 1415 SkillBuilders
Oracle Tutorial || Online Training || Adv Sql | Index Organized Table Part - 1 by basha
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
Oracle SQL Performance Tuning
 
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A beginner's guide that shows you how to start on SQL Performance tuning with reference to Oracle. Talks about plans, indexes and hints. Visit the associated web page at http://blog.hardeep.name/computer/20090217/sql-tuning/ For those unable to understand the accent, or looking for a more advanced tutorial visit http://blog.hardeep.name/general/20090711/app-tuning/
Views: 55485 dwealth
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: 93025 radhikaravikumar
Oracle Tutorial || Oracle|Adv Sql | Partitioned Table Part - 1 by basha
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo.......
Optimizing SQL Queries in Oracle - What is a Bitmap Index?
 
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This video clip, on the BITMAP Index, is taken from my www.pluralsight.com course "Optimizing SQL Queries in Oracle". Click here to learn more about this course: http://www.pluralsight.com/courses/optimizing-sql-queries-oracle?utm_source=youtube&utm_medium=video&utm_campaign=authordemo.
Views: 3010 sheepsqueezersYT
Oracle tutorial : Using execution plan to optimize query in oracle
 
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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: 8981 Tech Query Pond
Tutorial 41: INDEX in Oracle. Functional Based Index.
 
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Hi Friends! Here we are learning about Functional Based Index (FBI). Hope the concept and examples are clear to you. -- Link of Case Manipulation Function ( LOWER(), UPPER(), INITCAP() ) https://youtu.be/Ol-iVyp09fc -- Link of SQL LENGTH() Function https://youtu.be/I3gEsN_iYJo For any help/issue/suggestion/feedback let me know in comment box. Thanks. Happy Coding.
Views: 67 YourSmartCode

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