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AWR Report Generation
 
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#Oracle #AWR Generating and viewing an AWR Report. (Note : Usage of AWR requires the Diagnostic Pack Licence !) Also see video "AWR with SQLDeveloper" https://youtu.be/QNICuRuBnZo For examples of interpreting an AWR report search https://hemantoracledba.blogspot.com for "AWR"
Views: 24770 Hemant K Chitale
Oracle Midlands #13: Interpreting AWR Reports - Franck Pachot
 
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Timestamps: 2:30 - Database load 10:30 - Top 10 Foreground Events 16:30 - db file sequential read 23:39 - DB CPU 32:30 - log file sync 37:16 - enq: TX - row lock contention 39:47 - Findings summary & recommendations 42:38 - Quantifying the gain 47:15 - Q&A Franck walks his way through an AWR report, explaining his observations and thought process as he goes. The slides are available at: Google: https://drive.google.com/folderview?id=0B0DLaAfeW6uKZmJ3TXE0WGtLYlE Dropbox: https://www.dropbox.com/sh/9koxoemak8ts7j6/AADozVVYLoK_FdDZbQGC6TYta This event was sponsored by Red Stack Technology (http://redstacktechnology.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: 11559 Oracle Midlands
Performance Tuning with ASH and AWR Data
 
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Presented by Kellyn Pot'Vin 30 August 2012 Summary: Since their introduction with Oracle 10g, AWR and ASH data has offered the Database professional enhanced performance reporting capabilities that previously were only gleamed via statspack and reporting queries. In this webinar, Kellyn Pot'Vin, Senior Technical Consultant at Enkitec, will take you through the requirements, reporting basics and differences of AWR and ASH. You will learn: - Reasons to use both reports. - A firm understanding of each report and its format. - Knowledge of the differing versions of the AWR report and when best utilized. - The power of ASH Reporting in real-time trouble-shooting. - Ability to utilize the reports at the command line and from Enterprise Manager. A live Q&A session with Kellyn Pot'Vin follows the presentation. For our complete archive, and to sign up for upcoming webinars please go to http://www.red-gate.com/oracle-webinars
Views: 114574 Redgate Videos
Query Analysis and Optimizing in Oracle
 
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Database Management Systems 11. Query Analysis and Optimizing in Oracle ADUni
Views: 85765 Chao Xu
SQL: Global Temporary Table (GTT) Part-1
 
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In this tutorial , you'll learn about GTT...
Views: 23151 radhikaravikumar
Oracle DBA - Solve Long Running Query & TX Row Lock Contention | Performance Tuning
 
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How to Solve Row Lock Contention in Oracle Database - Performance Tuning - Oracle DBA Solve Row Lock Contention & Long Running Query in Oracle Database - Performance Tuning Oracle DBA - Performance Tuning Row Lock Contention Please Like, Comment, Subscribe and Share... Boxcut Media.
Views: 10026 Mohammed Amjath Ali
Introduction to AWR - DBPerf Video 16
 
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In this video you will understand what are V$ views and whats in the AWR. 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: 5142 Ramkumar Swaminathan
Oracle Performance - DBMS_STATS
 
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Oracle Performance - DBMS_STATS
Views: 5179 The Silent DBA
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: 19832 TechLake
SQL: External Table Part-1
 
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In this tutorial, you'll learn what are external tables and how to create external tables..
Views: 27965 radhikaravikumar
Oracle Administration Tutorial - Understanding Tablespaces and Datafiles (Theory).mp4
 
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Oracle Administration Tutorial - Understanding Tablespaces and Datafiles
Views: 47433 maurice ford
Auditing in Oracle 11g
 
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Auditing in Oracle database will help you to what a user doing??
Views: 5736 Athar Fahad
SQL with Oracle 10g XE - Using CREATE TABLE to Build a Table
 
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In this video I use the CREATE TABLE command to create three tables: Books, Publisher, and Author. I use these three tables as sample data. The code I entered in is: CREATE TABLE BOOK ( BOOK_ID VARCHAR(4) PRIMARY KEY, ISBN_10 VARCHAR(10), ISBN_13 VARCHAR(13), TITLE VARCHAR(50), CATEGORY VARCHAR(15), PRICE DECIMAL(6,2), BINDING VARCHAR(1), PUB_DATE VARCHAR(4), AUTHOR_ID SMALLINT, PUBLISHER_ID SMALLINT ); CREATE TABLE PUBLISHER ( PUBLISHER_ID SMALLINT PRIMARY KEY, PUBLISHER_NAME VARCHAR(40) ); CREATE TABLE AUTHOR ( AUTHOR_ID SMALLINT PRIMARY KEY, AUTHOR_LAST VARCHAR(25), AUTHOR_FIRST VARCHAR(20) ); I have to create each table individually in the SQL commands window. This video is part of a series of videos with the purpose of learning the SQL language. For more information visit Lecture Snippets at http://lecturesnippets.com.
Views: 115054 Lecture Snippets
Compression Options for Oracle Database
 
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Held on August 9 2018 This session by Gregg Christman focuses on general questions and insights regarding Oracle Basic Compression, Oracle OLTP Table Compression and Oracle Advanced Row Compression. Here is a quick guide to the highlights: 2:25 Basic vs. Advanced Row Compression comparison 4:55 Should you expect the same compression ratio with Basic and Advanced Row Compression? 8:29 Should you compress all tables and partitions? 15:50 What is the overhead associated with Advanced Row Compression? 17:06 Do I need to change my application to use compression? 17:31 Who uses Advanced Row Compression? 18:35 Is there any ongoing administration with Advanced Row Compression 20:43 When does updated data get compressed? 26:30 What role does PCTFREE play in updates and compression? 28:44 Does Advanced Row Compression work with Oracle Encryption? 29:34 Does enabling compression online or offline make a difference? 31:38 What are the typical compression ratios with Basic and Advanced Row Compression? 32:56 Are there any suggested MOS notes related to compression? 34:12 Feedback about ACO from customers 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: 762 Oracle Developers
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
Oracle Data Export and Import using DataPump expdp and impdp
 
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Oracle Data Export and Import using DataPump expdp and impdp
Views: 190095 Abbasi Asif
Oracle Optimization course, PL/SQL Tutorial - Table Partitions (Lesson 3)
 
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Oracle optimization: create table partitions and Index-Organized Table. Other lessons, visit https://www.youtube.com/watch?v=9RlxvHMg9PI&list=PL99-DcFspRUoscBHdh39T8EHENfm2VcQ3
SQL Developer 3.1 - Database Copy
 
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This demonstration will show how to copy objects and data from one database to another. This video is part of the SQL Developer Release 3.1 New Features series. --------------------------------------------------------------------- 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.
Oracle External Tables using oracle_datapump
 
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Using External Tables oracle_datapump type to export and import tables.
Views: 1691 thehighway360
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: 11129 TechLake
Oracle Midlands #13: All About Table Locks - Franck Pachot
 
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Timestamps: 0:45 - Basics 5:03 - TX lock demo 9:30 - TM lock info 21:04 - Foreign key index demo 28:48 - 10g, 11g, 12c locking differences 41:50 - New online operations in 12c 46:26 - Event 10704 trace 50:34 - Deadlock demo 53:42 - Q&A Franck discusses different types of locking scenarios to consider with your systems. The slides are available at: Google: https://drive.google.com/folderview?id=0B0DLaAfeW6uKZmJ3TXE0WGtLYlE Dropbox: https://www.dropbox.com/sh/9koxoemak8ts7j6/AADozVVYLoK_FdDZbQGC6TYta This event was sponsored by Red Stack Technology (http://redstacktechnology.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: 851 Oracle Midlands
Awr report
 
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Views: 175 SooCloudy
Oracle Database - Wait Event - Sequential Read Vs Scattered Read
 
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In this video you will learn about what is Sequential read and how is it different from Scattered read in an Oracle Database. The entire course can be purchased at https://www.udemy.com/oracle-database-troubleshooting-and-tuning Use Coupon Code - YOUTUBETT 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: 2908 Ramkumar Swaminathan
Oracle Database performance tuning in oracle - optimizer statistics gathering - 11g, 12c
 
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Oracle Database performance tuning in oracle - optimizer statistics gathering - 11g, 12c In this video we explain how to gather the database optimizer statistics #oracle, #oracledatabase, #tuning, #database, #optimizerstatistics, #performance, 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. Oracle Database Performance Tuning - Optimizer Statistics Gathering - 11g, 12c 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. Oracle Database Performance Tuning - Optimizer Statistics Gathering - 11g, 12c Stats collection Stats gathering database performance tuning, 10g, 11g 12c database administration
Views: 781 KINGS TUBE
Troubleshooting a Complex Oracle Performance Issue
 
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In this session Tanel will walk you through troubleshooting a yet another complex performance issue that he has faced in past. Again, the initial symptoms point to a different direction than the actual root cause, so a systematic approach was needed.
Views: 4622 Tanel Poder
FTS vs Index Scan   Part 1
 
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what is "full table scan in oracle" and "oracle index scan" Small Excerpt from "Oracle performance Tuning Session". http://www.dbvidya.com/oracle-performance-tuning-videos/ [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: 371 DbVidya
Oracle 11g Performance Tuning Demo Session
 
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More Oracle DBA Courses: https://oraclegenesis.com/ Online trainings: https://oraclegenesis.com/video-courses/ Fly me a trainer: https://oraclegenesis.com/fly-me-a-trainer/ DBA Knowledgebase: https://oraclegenesis.com/dba-knowledgebase/ ORACLEGENESIS provides all you need to build and manage effective Oracle technology learning. We designed ORACLEGENESIS as a simple to use yet powerful online Oracle learning system for students. Each of our courses is taught by an expert instructor, and every course is available on demand.
Views: 87582 DBA Genesis
Table Compression Enhancement in Oracle Database 11g R2
 
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Table Compression: Overview Oracle Database supports three methods of table compression: 1.Basic table compression 2.OLTP table compression Oracle Corporation recommends to compress all data to reduce storage costs. The Oracle database can use table compression to eliminate duplicate values in a data block. For tables with highly redundant data, compression saves disk space and reduces memory use in the database buffer cache. Table compression is transparent to database applications. The table_compression clause is valid only for heap-organized tables. The COMPRESS keyword enables table compression. The NOCOMPRESS keyword disables table compression. NOCOMPRESS is the default. With basic compression, the Oracle database compresses data at the time of performing bulk load using operations such as direct loads or CREATE TABLE AS SELECT. With COMPRESS FOR OLTP, the Oracle database compresses data during all DML operations on the table.
Views: 2580 Saurabh Joshi
Efficient Function Calls From SQL (Part 5) : Pipelined Table Functions
 
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The fifth part of a mini-series of videos showing how you can improve the performance of function calls from SQL. In this episode, we compare the performance of conventions table functions with pipelined table functions. For more information see: https://oracle-base.com/articles/misc/pipelined-table-functions https://oracle-base.com/articles/misc/efficient-function-calls-from-sql Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Mike Dietrich : Blog: https://blogs.oracle.com/UPGRADE Twitter: https://twitter.com/MikeDietrichDE Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 12790 ORACLE-BASE.com
Table Shrinking in Oracle Database
 
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1.Shrink the Table: Shrinking is started from 10g. In this method I’m using user u1 and table name sm1. Now I’m deleting some rows in sm1 COUNT ---------- 1048576 Table sm1 has 1048576 rows. [email protected]: delete from sm1 where deptno=10; 262144 rows deleted. I deleted above number of rows. Rows COUNT ---------- 786432 And I’m giving commit [email protected]: commit; Commit complete. So now we have 786432 rows in sm1 table. Now see the following command [email protected]: select OWNER,TABLESPACE_NAME,SEGMENT_NAME,SEGMENT_TYPE,BYTES/1024/1024||' mb'"space",BLOCKS,EXTENTS from dba_segments where tablespace_name like 'U%TS'; OWNER TABLESPACE_NAME SEGMENT_NAME SEGMENT_TYPE space BLOCKS EXTENTS ----- --------------- ------------- ------------- ------ ---------- ---------- U1 U1TS SM1 TABLE 29 mb 3712 44 After I deleted some rows in sm1 table still above result showing same values, so now our duty is shrink this table. This is done by following 2 ways, i By using COMPACT key word: In this method shrinking is done in two phases. In the first phase all fragmented space are just defragmented, but still the High Water Mark is persist with last used block only. That mean used free blocks are not de allocated and HWM is not updated here. Issue the following command before use shrink command. [email protected] alter table sm1 enable row movement; Table altered. There is particular use with above command, when we shrink the table all rows are moves to contiguous blocks, so here row movement should be done. By default the row movement is disabled for any table, so above command enabled the row movement. Then execute shrink command now. [email protected]: alter table sm1 shrink space compact; Table altered. Now see the space of table by using below command. [email protected]: select OWNER,TABLESPACE_NAME,SEGMENT_NAME,SEGMENT_TYPE,BYTES/1024/1024||' mb'"space",BLOCKS,EXTENTS from dba_segments where tablespace_name like 'U%TS'; OWNER TABLESPACE_NAME SEGMENT_NAME SEGMENT_TYPE space BLOCKS EXTENTS ----- --------------- ------------- ------------- ------ ---------- ---------- U1 U1TS SM1 TABLE 29 mb 3712 44 So here seems nothing happened with above shrink command, but internally the fragmented space is defragmented. But the high water mark is not updated, used free blocks are also not de allocated. For de allocating the used blocks we have to execute below command. This is the second phase. [email protected]: alter table sm1 shrink space; Table altered. Now see the space by using below command. [email protected]: select OWNER,TABLESPACE_NAME,SEGMENT_NAME,SEGMENT_TYPE,BYTES/1024/1024||' mb'"space",BLOCKS,EXTENTS from dba_segments where tablespace_name like 'U%TS'; OWNER TABLESPACE_NAME SEGMENT_NAME SEGMENT_TYPE space BLOCKS EXTENTS ----- --------------- ------------- ------------- ---------- ---------- ---------- U1 U1TS SM1 TABLE 20.8125 mb 2664 36 So now the space of sm1 table is reduced. Note: Actually the alter table sm1 shrink space command will complete these two phases of the shrinking of table at a time. But here we done shrink process in two phases because when we use alter table sm1 shrink space command the table locked temporarily some time period, during this period users unable to access the table. So if we use alter table sm1 shrink space compact command the table is not locked but space is defragmented. When we not in business hours issue the second phase shrink command then users are won’t get any problem. ii Because of above method the table dependent objects are goes to invalid state, to overcome this problem we have to use below command. [email protected]: alter table sm1 shrink space cascade; Table altered. The above command also shrinks the space of all dependent objects. We also do this in two phases like above two phases. See the below command. [email protected]: alter table sm1 shrink space compact cascade; Table altered. And then [email protected]: alter table sm1 shrink space cascade; Table altered. Transporting tablespace to different platform by Using RMAN : https://www.youtube.com/watch?v=CN401PUKK4A Oracle EBS apps Upgrade from 12 2 to 12 2 5 (start CD 51) : https://www.youtube.com/watch?v=zeO4goqR70Y Transport tablespace by using RMAN.: https://www.youtube.com/watch?v=YG6kWX7Par8
Views: 7578 BhagyaRaj Katta
Frgmentation in oracle database
 
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Fragmentation in oracle database,find and defragmentation
Views: 4260 Sainora Annanagar
How to Export Data To CSV from Oracle Database using PLSQL script.
 
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How to Export Data To CSV from Oracle Database using PLSQL script. A simple oracle tutorial to get idea about exporting data from oracle database using plsql.
Views: 23282 Subhroneel Ganguly
Estimated rows vs actual rows oracle  12c(Explain Plan)
 
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what is "rows" in explain plan? Discusses, SQL execution plan A-ROWS vs. E-ROWS concept. Excerpt from "Oracle SQL Tuning Video Tutorial". dbvidya offers oracle sql tuning online training. www.dbvidya.com [email protected] +91 9912323000 Oracle SQL Tuning Video Tutorial https://dbvidya.talentlms.com/catalog/info/id:125 Oracle DBA Performance Tuning https://dbvidya.talentlms.com/catalog/info/id:128 Dimensional Modeling Video Tutorial https://dbvidya.talentlms.com/catalog/info/id:131 Erwin Tool Training Video Tutorial https://dbvidya.talentlms.com/catalog/info/id:130 Oracle Performance Tuning Online Training : http://www.dbvidya.com/course/perform... Oracle SQL Performance Tuning Training Online : http://www.dbvidya.com/course/sql-tun... Oracle Performance Tuning Videos Tutorial for DBA and Developers : http://www.dbvidya.com/oracle-perform... Oracle AWR Tutorial: http://www.dbvidya.com/course/oracle-... Erwin Tool Online Training : http://www.dbvidya.com/course/erwin-t... ER Data Modeling Course : http://www.dbvidya.com/course/er-mode... Dimensional Modeling Training Online : http://www.dbvidya.com/course/dimensi... Oracle Database Blogs : http://www.dbvidya.com/blog/
Views: 92 DbVidya
Tuning Oracle Using An AWR Report - Class Introduction
 
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Tuning Oracle Using An AWR Report teaches DBAs how to make Oracle database systems fast using an AWR or Statspack report. Craig will lead you through the entire process turning you into a respected performance analyst. No more flipping through an entire AWR report top-to-bottom desperately searching for answers! You will learn how to develop solutions that are spot-on and everyone will know it. You will know what to do, do it fast, and be able to explain the situation with 100% clarity and confidence. For information on how to join OraPub's class, go to https://www.orapub.com/training-tuning-oracle-using-an-awr-report
Views: 76 OraPub, Inc.
How to Gather SQL Resource Consumption Metrics in Oracle
 
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Presented by Karen Morton Tues 8th May 2012 Summary SQL is utilized to return data via our applications to service user requests. Whether it's a single customer lookup or a huge month end summary report, the SQL we write must gather the correct data and return it to the user. Ensuring that the SQL you write can do this in a timely and efficient manner, both now and in the future, requires that you measure and evaluate what resources your query must use. In this webinar, we'll cover several methods for how to collect data that show you precisely how your SQL consumes resources: Using AUTOTRACE Using DBMS_XPLAN.DISPLAY_CURSOR Using Report SQL Monitor Using ASH (Active Session History) and AWR (Automatic Workload Repository) data You'll learn how to utilize the data to understand the work your SQL is doing and the resources it consumes; identify currently evident performance issues as well as areas that could be problematic in the future; and modify your SQL to use less resources more efficiently while still returning the desired results. A live Q+A session with Karen Morton follows the presentation. For our complete archive, and to sign up for upcoming webinars please go to http://www.red-gate.com/oracle-webinars
Views: 7201 Redgate Videos
Oracle Database 12c: Enhanced Optimizer Statistics with Tom Kyte
 
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Tom Kyte discusses enhanced optimizer statistics followed by a demo of on-load statistics gathering in Oracle Database 12c. "Online Statistics Gathering for Bulk Loads" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=TGSQL344 "Histograms" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=TGSQL366 "CREATE TABLE ... AS SELECT" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=DWHSG8317 "CREATE TABLE" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=SQLRF01402
Views: 8536 OracleDBVision
How to Create a Dblink Between Two Oracle Database oracle12c/11g
 
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"Must Watch" How to Create a Dblink Between Two Oracle Database oracle12c/11g instance in different machine. #CreateaDblink #Oracle Database12c/11g Oracle database Unbeatable,Unbreakable Platform..
Views: 13250 Oracle World
Ways of generating EXECUTION PLAN in Oracle Database
 
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Learn how to generate execution plan in oracle database in many ways
Views: 3811 OrSkl Academy
How to backup the tables from ORACLE Part-II
 
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This video will explain you how to backup the tables from oracle...!
Views: 271 Thamizharasan Mohan
Oracle Tuning Tutorial - Long Full Table Scans Part 1 of  5
 
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Learn SQL Tuning! Tune full table scans! Part 1 of 5 videos in this series. See all 5 tutorials, free, at http://www.skillbuilders.com/tuning-long-full-table-scans 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: 2999 SkillBuilders
What is? - Advanced Compression in Oracle Database 12c
 
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Join Kevin Jernigan, as he talks about Advanced Compression in Oracle Database 12c. How it optimizes and makes I/O reads more efficient and increases throughput. ================================= For more information, see http://www.oracle.com/goto/oll 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.
Oracle DBA, 1e22 -How to undrop a table in Oracle 11 g
 
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The video will describe how to undrop table in Oracle 11g using flashback
Views: 522 hammadshams
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: 16610 Tech Query Pond
How to use Oracle SQL Loader sqlldr to load data into table from text file
 
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How to use Oracle SQL Loader sqlldr to load data into table from text file create table emp(empno number(10),ename varchar(30)); insert into emp values(10,'asif'); set echo off newpage 0 space 0 pagesize 0 feed off head off trimspool on spool d:\oradata\sqlloader\data.txt select empno || ',' || ename from emp; spool off delete emp; update file named data.txt create a file named control.txt load data infile 'd:\oradata\sqlloader\data.txt' into table emp fields terminated by "," optionally enclosed by '"' ( empno, ename ) sqlldr asif/asif control=d:\oradata\sqlloader\control.txt
Views: 47993 Abbasi Asif
Oracle 11gR2 Performance Tuning
 
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Learn Oracle Performance Tuning with Real Time Activities. Watch this video to see how HARD PARSING issue can be rectified with simple resolution. This course will load the system and show you a real time approach to resolve performance issues on your environment. Get more details at : www.orskl.com/training Queries? WhatsApp: +919951696808 Get your hands dirty now and become performance tuning expert.
Views: 10454 OrSkl Academy
Tablespace Management
 
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Tablespace management Tasks
Views: 37308 DbaRocksOracle
ONLINE table maintenance WITHOUT upgrading to 12c Release 2
 
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Online table maintenance is trivial in the current versions. But what about those of us that are still stuck on the older versions? Can I avoid lengthy downtime when changing table structures ? blog: https://connor-mcdonald.com twitter: https://twitter.com/connor_mc_d Subscribe as new tech videos come every week!
Views: 461 Connor McDonald
Relationships of Physical and Logical Storage structures in an Oracle Database - DBArch Video 22
 
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In this video you will understand the Relationships between the Physical files and Logical Components - Tablespace, Segments, Extents and Oracle Blocks in an Oracle Database . 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: 17876 Ramkumar Swaminathan
Oracle Tutorial ||online training|| Oracle|Adv Sql | Table Locks Part - 2 by basha
 
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Lecture 5   Oracle Database Performance Tuning 1 - Guy Harrison
 
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China Sun Yat-sen University and Dell co-established course IT System Management Introduction Lecture 5 Oracle Database Performance Tuning - Guy Harrison The Oracle database is highly tuneable with many options for optimizing performance. However, the sheer quantity of tuning options can be overwhelming, and you can waste precious time unless you know which tuning activities are most likely to provide a return on your time investment. In this lecture we'll review some of the fundamental Oracle performance tuning practices and see how to use these in a ystematic way to improve Oracle performance. Topics will include workload and SQL optimization, identification and elimination of key contention points, configuring memory to avoid physical IO, and disk IO optimization. We will also see how to use commercial tools to assist in Oracle database tuning. This lecture will be based on materials from the lecturer's book on Oracle performance: http://product.china-pub.com/60833).
Views: 30649 Quest University