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Search results “Compress table partitions in oracle”
How to Convert a Non-Partitioned Table to Partitioned using Oracle Database 12c R2
 
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Oracle Database 12c Release 2 New Feature! Learn how to convert a non-partitioned table to a partitioned table - Online! This new method - using ALTER TABLE MODIFY - is much simpler than DBMS_REDEFINITION. In this free tutorial from SkillBuilders and Oracle Certified Master DBA John Watson you'll see a demonstration of converting the table and the impact on the underlying table and indexes. See all our free Oracle Database Tutorials at http://www.skillbuilders.com/free-oracle-tutorials.
Views: 3302 SkillBuilders
Partitioning in Oracle Explained with Real project Examples : Introduction
 
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This Video series will explain partitioning and its use cases referencing real project examples from different domain. It will explain what when and why of partitioning in a simple but elaborate manner. This is the 1st video which explains why partitioning is required and what are the advantages we gain from it. The following videos will explain when should we do it and how.
Views: 24243 Tech Coach
exchange Partition , Move partition in oracle
 
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exchange Partition , Move partition in oracle Possible operations with partitions 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 Add Drop Rename Split Move ( Moving from Tablespace to tablespace) Exchange (Table to Table(non Partitioned table)) not partitioned only exchanging data (p)
Views: 1323 TechLake
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: 423 Oracle Developers
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: 2391 Saurabh Joshi
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 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: 13476 OracleDBVision
Oracle Database 12c OLTP Compression
 
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This short video uses swingbench to demonstrate that its possible to make excellent space savings of both the space needed to store rows and the associated indexes without compromising transaction performance. You can find out more information on Oracle Database compression in this white paper http://www.oracle.com/technetwork/database/options/compression/advanced-compression-wp-12c-1896128.pdf You can download the software used in this demonstration here http://www.dominicgiles.com/swingbench.html
Views: 617 Dominic Giles
Page and Row Compression Deep Dive (DBA)
 
01:24:40
Bradley Ball, Pragmatic Works
Views: 729 PASStv
How to Shrink table in Oracle..
 
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this video will help how to reclaim space from the table.
Views: 1810 oracdb
Index Compression in Oracle Database 12c Release 1 (12.1.0.2)
 
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A quick intro to the new Advanced Index Compression in Oracle Database 12c release 1 (12.1.0.2). This functionality is part of the Advanced Compression Option
Views: 2257 Dominic Giles
Oracle Exadata Hybrid Columnar Compression
 
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Flipchart video explaining new hybrid columnar compression technology available with Oracle Exadata.
Views: 13339 Oracle Video
03 How to configure List partition in Oracle
 
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Use list partitioning when you require explicit control over how rows map to partitions. You can specify a list of discrete values for the partitioning column in the description for each partition. This is different from range partitioning, where a range of values is associated with a partition, and from hash partitioning, where the user has no control of the row to partition mapping. List partitioning allows unordered and unrelated sets of data to be grouped and organized together very naturally The following example creates a table with list partitioning create table customers (custcode number(5), Name varchar2(20), Addr varchar2(10,2), City varchar2(20), Bal number(10,2)) Partition by list (city), Partition north_India values (‘DELHI’,’CHANDIGARH’), Partition east_India values (‘KOLKOTA’,’PATNA’), Partition south_India values (‘HYDERABAD’,’BANGALORE’,’CHENNAI’), Partition west India values (‘BOMBAY’,’GOA’); If a row is inserted in the above table then oracle maps the value of city column and whichever partition list matches the city column the row is stored in that partition.
Views: 712 Md Arshad
PART 7 MERGE PARTITION
 
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merge partition, alter table, data warehousing
08 07 Index Compression
 
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ORACLE
Views: 407 oracle ocm
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: 6945 BhagyaRaj Katta
Reorganizing Tables in Oracle
 
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The clip explains why reorganizing of tables may or may not be required and how to do it. Text version is here: https://uhesse.com/2010/08/23/reorganizing-tables-in-oracle-is-it-worth-the-effort/
Composite Partitioning in Oracle
 
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This video is the 6th Video in the series partitioning in oracle. It explains the different composite partitioning approaches and in what scenario they should be used with real project use case explanations.
Views: 2720 Tech Coach
Exploring Oracle 12c's Automatic Database Optimization (ADO) Features:
 
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Oracle Database Release 12cR1's new Automatic Database Optimization (ADO) features now make it possible to automatically locate data within the most appropriate storage tier and at the appropriate compression level based on its usage patterns. Join Oracle Ace Director Jim Czuprynski as he discusses how to take advantage of these features to save crucial Tier 0 and Tier 1 storage space ... and perhaps even improve query and DML performance.
Views: 5483 Database Community
Heap Tables and Index Organized Tables in Oracle | Chris Saxon
 
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Chris Saxon, a database evangelist, developer advocate, and SQL specialist with Oracle, uses up his two minutes with a tip on using heap tables and index organized tables in Oracle Database.
Hints and Tips - Queries running whilst exchanging partitions - part 1
 
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Even when you rip out a partition from a table, queries can still execute successfully. ========================================­­­­============== 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: 914 Connor McDonald
What is RANGE-LIST SUBPARTITIONS in Oracle via OEM ?
 
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Hi friends today in my videos I'm going to explain with you What is RANGE-LIST SUB-PARTITIONS in Oracle via OEM Oracle database Unbeatable,Unbreakable Platform.. # RANGE-LISTSUBPARTITIONS #OEM
Views: 1457 Oracle World
Hints and Tips - Queries running whilst exchanging partitions - part 2
 
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Even when you rip out a partition from a table, queries can still execute successfully. ========================================­­­­============== 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: 1014 Connor McDonald
Tables and Tables Clusters in Oracle
 
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https://dbagenesis.com/p/oracle-11g-advanced-dba DBA Genesis provides all you need to build and manage effective Oracle technology learning. We designed DBA Genesis 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. Video talks about "what are table clusters inside Oracle database". One of video lessons from our Advanced DBA video course. Have a happy learning!
Views: 3925 DBA Genesis
Oracle Advance Compression
 
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Oracle Advance Compression
Views: 446 BD2 Proyecto
SQL 12c Tutorial 20 : SQL 12c Creating Multiple Indexes on column
 
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SQL 12c Tutorial 20 : SQL 12c Creating Multiple Indexes on column SQL 12c New Features SQL 12c Tutorial for beginners Oracle 12c Tutorial for beginners Creating Multiple indexes on column
Views: 835 TechLake
Partitioning Basics: Treating your tables like Lego
 
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Do you have tables and indexes that have grown really large? Are you moving around a lot more data than you used to? Are your windows for jobs and maintenance getting tighter? If you answered yes to any of these questions, partitioning may be for you! With partitioning, you can break a table or index down into smaller more manageable chunks. It can help you perform maintenance on just part of a table or index. You can even move data in and out of tables with quick and easy metadata only operations. We’ll go over basic partitioning concepts such as horizontal vs. vertical partitioning, and techniques like partitioned views and full blown table partitioning. We’ll look at how partitioning affects things under the hood. Finally you'll see some cool demos/tricks around index maintenance and data movement. At the end of this session you’ll have a firm understanding of how partitioning works and know how to make decisions on how and when to implement. You'll learn… • The components of table partitioning and how they fit together • How to make your index maintenance partition aware • How Partition elimination can help your queries • How to split different parts of tables over different storage tiers • How to manage partitions. We'll demo this by implementing the sliding window technique. Brandon Leach is a senior DBA with SurveyMonkey in Palo Alto, CA. He is a frequent speaker at events such as SQLSaturdays, user groups, and more recently the PASS Summit. When not working or at events he can be found spending time with his family and tinkering in his home lab.
Views: 1521 DBAFundamentals
AskTOM Office Hours - partitioning for database administrators
 
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blog: https://connor-mcdonald.com AskTOM Office Hours DBA free webinar
Views: 697 Connor McDonald
B*Tree Index Types (Indexes in Oracle-2)
 
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This video will cover different types of B-tree indexes: Descending index,Reverse key index,Key Compressed Index B-tree cluster index,Index Organized Table(IOT):
Views: 15440 Anindya Das
【VDEDU】Unusable indexes use
 
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Unusable indexes in Oracle, DML statements are not use the index to its maintenance, at the same time the optimizer will not use the index. Unusable indexes no segment exists. Unavailable index index becomes available methods are: 1. Place the index can not be truncate operation corresponding table; 2.rebuild index; In addition, the query optimizer can use conversion method expand table so that the SQL statement has encountered unusable index partition table to generate better execution plans.
Views: 65 崔旭
SQL Snacks - Table Partitioning 102
 
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Ayman El-Ghazali www.TheSQLPro.com @TheSQLPro SQL Snacks -Table Partitioning 102 Original Blog Post: http://thesqlpro.com/2014/04/15/sql-snacks-video-sql-server-table-partitioning-102/
Views: 978 Ayman El-Ghazali
In-Memory in Oracle Database 12c
 
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In-Memory is a new feature in Oracle Database 12c. This features allows you to store columns, tables, partitions and materialized views in memory in a columnar format, rather than the typical row format.
Views: 156 Koenig Solutions
Apache Hive - 01 Partition an existing data set according to one or more partition keys
 
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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/itversityin https://twitter.com/itversity
Views: 3402 itversity
JSON In the Oracle Database 12c Release 1 (12.1.0.2)
 
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A really quick look at the ability to store JSON in the Oracle Database 12c Release 1 (12.1.0.2) and accessing it using Python and the Oracle_CX open source driver. You can find the Oracle documentation on it here http://docs.oracle.com/database/121/ADXDB/json.htm#ADXDB6246
Views: 8435 Dominic Giles
KISS series on Partitioning - for Developers
 
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Welcome to the KISS video series on Partitioning, where we take a more developer-centric look at how partitioning can make our applications more successful. In this session, we look at how to create our very first range partitioned table Scripts: https://livesql.oracle.com/apex/livesql/file/content_EM2X7EIHU60Z888IOU53RF0EN.html ========================================­­============== Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1147 Connor McDonald
SQL Server Tutorial 20:  Table, Index and Row Compression
 
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How to use table, index and row compresson with SSMS or T-SQL. For more info, or a copy of the scripts used in this tutorial, please email me at [email protected]
Views: 3030 Johnny Deluca
Oracle Database 18c Express Edition Installation on Oracle Linux 7.5 | Oracle Database 18c XE
 
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In this video we are going to demonstrate how to install Oracle Database 18c Express Edition in Oracle Linux 7.5. Oracle Database 18c Express Edition installation in Oracle Linux 7 Platform is very easy. This video guides step by step installation of oracle database XE 18c includes dependencies installation, oracle database installation, oracle listener configuration after installation and finally access oracle enterprise manager 18c in browser and start/shutdown instances. Hardware Requirements : Minimum 2 GB RAM, 2 CPU Cores and Enough Hard disk Space. Software Requirements : Oracle Enterprise Linux 7 with dependencies for oracle database 18c installed and Kernel Parameters configured. Important Note: To avoid Port already in use error I will be configuring hostname at the end of installation. Installation method : Offline, Oracle Database 18c XE RPM file for linux downloaded and installed. Oracle Database 18c Express Edition is free to use with some Limitations (Only 2 CPU Cores, 2GB RAM will be utilized and 12 GB User Data). Oracle Database 18c XE Features ############################### Oracle Multitenant SQLJ Microsoft Distributed Transaction Coordinator support Native .NET Data Provider—ODP.NET .NET Stored Procedures Online index rebuild Online table organization Online table redefinition Trial recovery Fast-start fault recovery Flashback Table Flashback Database Cross-platform Backup and Recovery Sharded Queues Network Compression Client Side Query Cache Query Results Cache PL/SQL Function Result Cache Adaptive Execution Plans In-Memory Column Store In-Memory Aggregation Attribute Clustering Column-Level Encryption Tablespace Encryption Oracle Advanced Security Oracle Database Vault Oracle Label Security Centrally Managed Users Fine-grained auditing Privilege Analysis Real Application Security Redaction Transparent Sensitive Data Protection Virtual Private Database Oracle Spatial and Graph Property Graph and RDF Graph Technologies (RDF/OWL) Partitioned spatial indexes Oracle Partitioning Oracle Advanced Analytics Oracle Advanced Compression Advanced Index Compression Prefix Compression (also called Key Compression) Basic Table Compression Deferred Segment Creation Bitmapped index, bitmapped join index, and bitmap plan conversions Transportable tablespaces, including cross-platform and full transportable export and import Summary management—Materialized View Query Rewrite.
Views: 995 java frm
Oracle Database 18c Express Edition Installation on CentOS 7.5 | Oracle Database 18c XE Released
 
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In this video we are going to demonstrate how to install Oracle Database 18c Express Edition in CentOS 7.5. Oracle Database 18c Express Edition installation in CentOS 7 Platform is very easy. This video guides step by step installation of oracle 18c includes kernel parameters configuration, dependencies installation, oracle database installation, oracle listener configuration after installation and finally access oracle enterprise manager 18c in browser. Hardware Requirements : Minimum 2 GB RAM, 2 CPU Cores and Enough Hard disk Space. Software Requirements : CentOS 7 with dependencies for oracle database 18c installed and Kernel Parameters configured. Important Note: To avoid Port already in use error I will be configuring hostname at the end of installation. Installation method : Offline, Oracle Database 18c XE RPM file for linux downloaded and installed. Oracle Database 18c XE Features ############################### Oracle Multitenant SQLJ Microsoft Distributed Transaction Coordinator support Native .NET Data Provider—ODP.NET .NET Stored Procedures Online index rebuild Online table organization Online table redefinition Trial recovery Fast-start fault recovery Flashback Table Flashback Database Cross-platform Backup and Recovery Sharded Queues Network Compression Client Side Query Cache Query Results Cache PL/SQL Function Result Cache Adaptive Execution Plans In-Memory Column Store In-Memory Aggregation Attribute Clustering Column-Level Encryption Tablespace Encryption Oracle Advanced Security Oracle Database Vault Oracle Label Security Centrally Managed Users Fine-grained auditing Privilege Analysis Real Application Security Redaction Transparent Sensitive Data Protection Virtual Private Database Oracle Spatial and Graph Property Graph and RDF Graph Technologies (RDF/OWL) Partitioned spatial indexes Oracle Partitioning Oracle Advanced Analytics Oracle Advanced Compression Advanced Index Compression Prefix Compression (also called Key Compression) Basic Table Compression Deferred Segment Creation Bitmapped index, bitmapped join index, and bitmap plan conversions Transportable tablespaces, including cross-platform and full transportable export and import Summary management—Materialized View Query Rewrite
Views: 1072 java frm
Part 1 SQLServer Database Partitioned Table
 
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Arabic Series for SQL Server create Partitioned Table
Views: 2524 amosaEgy
Oracle Performance Tips - Indexes
 
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Learn about index and types of indexes.
Views: 2200 Saurabh Kumar
SQL 2008 Series: SQL Partitions / partitioning
 
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http://www.creativecommit.com This demo gives a brief overview of SQL partitions/partitioning/partition functions/partition schemes.
Views: 15434 creativecommIT
01 Oracle database Table lock
 
20:58
Purpose Use the LOCK TABLE statement to lock one or more tables, table partitions, or table subpartitions in a specified mode. This lock manually overrides automatic locking and permits or denies access to a table or view by other users for the duration of your operation. Some forms of locks can be placed on the same table at the same time. Other locks allow only one lock for a table. A locked table remains locked until you either commit your transaction or roll it back, either entirely or to a savepoint before you locked the table. A lock never prevents other users from querying the table. A query never places a lock on a table. Readers never block writers and writers never block readers. See Also: Oracle Database Concepts for a complete description of the interaction of lock modes COMMIT ROLLBACK SAVEPOINT Prerequisites The table or view must be in your own schema or you must have the LOCK ANY TABLE system privilege, or you must have any object privilege on the table or view. ROW SHARE ROW SHARE permits concurrent access to the locked table but prohibits users from locking the entire table for exclusive access. ROW SHARE is synonymous with SHARE UPDATE, which is included for compatibility with earlier versions of Oracle Database. ROW EXCLUSIVE ROW EXCLUSIVE is the same as ROW SHARE, but it also prohibits locking in SHARE mode. ROW EXCLUSIVE locks are automatically obtained when updating, inserting, or deleting. SHARE UPDATE See ROW SHARE. SHARE SHARE permits concurrent queries but prohibits updates to the locked table. SHARE ROW EXCLUSIVE SHARE ROW EXCLUSIVE is used to look at a whole table and to allow others to look at rows in the table but to prohibit others from locking the table in SHARE mode or from updating rows. EXCLUSIVE EXCLUSIVE permits queries on the locked table but prohibits any other activity on it. NOWAIT Specify NOWAIT if you want the database to return control to you immediately if the specified table, partition, or table subpartition is already locked by another user. In this case, the database returns a message indicating that the table, partition, or subpartition is already locked by another user. WAIT Use the WAIT clause to indicate that the LOCK TABLE statement should wait up to the specified number of seconds to acquire a DML lock. There is no limit on the value of integer. If you specify neither NOWAIT nor WAIT, then the database waits indefinitely until the table is available, locks it, and returns control to you. When the database is executing DDL statements concurrently with DML statements, a timeout or deadlock can sometimes result. The database detects such timeouts and deadlocks and returns an error.
Views: 775 Md Arshad
Oracle Database 18c Express Edition Installation on Oracle Linux 6.10 | Oracle Database 18c XE
 
33:15
In this video we are going to demonstrate how to install Oracle Database 18c Express Edition in Oracle Linux 6.10. Oracle Database 18c Express Edition installation in Oracle Linux 6 Platform is very easy. This video guides step by step installation of oracle 18c includes kernel parameters configuration, dependencies installation, oracle database installation, oracle listener configuration after installation and finally access oracle enterprise manager 18c in browser. Hardware Requirements : Minimum 2 GB RAM, 2 CPU Cores and Enough Hard disk Space. Software Requirements : Oracle Enterprise Linux 6 with dependencies for oracle database 18c installed and Kernel Parameters configured. Important Note: To avoid Port already in use error I will be configuring hostname at the end of installation. Installation method : Offline, Oracle Database 18c XE RPM file for linux downloaded and installed. Oracle Database 18c XE Features ############################### Oracle Multitenant - # of PDBs SQLJ Microsoft Distributed Transaction Coordinator support Native .NET Data Provider—ODP.NET .NET Stored Procedures Online index rebuild Online table organization Online table redefinition Trial recovery Fast-start fault recovery Flashback Table Flashback Database Cross-platform Backup and Recovery Sharded Queues Network Compression Client Side Query Cache Query Results Cache PL/SQL Function Result Cache Adaptive Execution Plans In-Memory Column Store In-Memory Aggregation Attribute Clustering Column-Level Encryption Tablespace Encryption Oracle Advanced Security Oracle Database Vault Oracle Label Security Centrally Managed Users Fine-grained auditing Privilege Analysis Real Application Security Redaction Transparent Sensitive Data Protection Virtual Private Database Oracle Spatial and Graph Property Graph and RDF Graph Technologies (RDF/OWL) Partitioned spatial indexes Oracle Partitioning Oracle Advanced Analytics Oracle Advanced Compression Advanced Index Compression Prefix Compression (also called Key Compression) Basic Table Compression Deferred Segment Creation Bitmapped index, bitmapped join index, and bitmap plan conversions Transportable tablespaces, including cross-platform and full transportable export and import Summary management—Materialized View Query Rewrite
Views: 144 java frm
SQL Snacks - Table Partitioning 101
 
10:54
Ayman El-Ghazali www.TheSQLPro.com @TheSQLPro SQL Snacks -Table Partitioning 101 Original Blog Post: http://thesqlpro.com/2014/04/08/sql-snacks-video-sql-server-table-partitioning-101/
Views: 3092 Ayman El-Ghazali
Oracle ACE Director Discusses Cost Savings with Oracle Database 11g
 
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Dan Morgan, Oracle ACE Director, discusses benefits of Advanced Compression, Partitioning, and other gems in Oracle Database 11g. John Brust of Oracle hosts.
Views: 4734 Oracle Video
Oracle Database 12c demos: In-Memory Column Store Compression
 
11:42
The demonstration illustrates how inmemory compression of inmemory objects populated in the IM column store can influence either query performance or storage savings in IM column store.
Data Compression in SQL Server - Pros and Cons
 
25:05
Refer to http://www.sqlvideo.com/AllVideos/Data-Compression-in-SQL-Server---Pros-and-Cons for additional details. This SQL Server Video includes demos. You have the possibility to practice the hands-on examples while watching the video. SQLTest Tool (http://www.sqltest.org) simulates the hands-on labs for you, no registration necessary. For in-person workshops check out our schedule: http://www.sqlworkshops.com/schedule or contact us for a customized, onsite workshop http://www.sqlworkshops.com/contact To read some feedback from previous workshop participants, go to http://www.sqlworkshops.com/feedback
Views: 3022 SQLWorkshops
Manage Compression with Enterprise Manager Cloud Control 12c
 
05:10
This video shows you how to access ADO in an Oracle Database 12c managed target, how to use the heatmap to gain a graphical overview over data access, including drilling down to tablespace and segment level, and how to add a Automatic Data Optimization policy to a table. Note that the Cloud Control 12c features depicted here are only applicable to Oracle Database 12c managed targets. Copyright © 2013 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. Note that the Cloud Control 12c features depicted here are only applicable to Oracle Database 12c managed targets.
Checkpoint Revalidate
 
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The REVALIDATE option regenerates the table headers for a partitioned table or uncompressed join index and optionally verifies and corrects the row partitioning for a table (but not for a join index) if you specify the WITH DELETE or WITH INSERT null partition handling options. You can specify the REVALIDATE option for unpartitioned tables and join indexes without also specifying PRIMARY INDEX. This makes revalidation applicable whether or not the table or join index has a primary index. You must specify the REVALIDATE option without also specifying PRIMARY INDEX for NoPI tables and column‑partitioned tables and join indexes. Otherwise, Teradata Database aborts the request and returns an error to the requestor. The REVALIDATE option also provides the ability to revalidate some data dictionary columns. REVALIDATE requests do not verify the column partitioning of a column‑partitioned table or join index. If partitioning errors are detected for a table (but not a join index), an ALTER TABLE REVALIDATE request corrects them. REVALIDATE also revalidates the following Data Dictionary table columns. wave web technology was established in 2012, and has a dynamic team of professional web developers, web designers, SEO experts and customer support . website : www.wavewebtech.com https://www.facebook.com/wavewebtechnologies https://twitter.com/wavewebtechnolo https://plus.google.com/collections/
Views: 6 vikas verma
Oracle Database 18c Express Edition Installation on Redhat Enterprise Linux 6.10
 
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In this video we are going to demonstrate how to install Oracle Database 18c Express Edition in Redhat Enterprise Linux 6.10. Oracle Database 18c Express Edition installation in RHEL 6 Platform is very easy. This video guides step by step installation of oracle 18c includes kernel parameters configuration, dependencies installation, oracle database installation, oracle listener configuration after installation and finally access oracle enterprise manager 18c in browser. Hardware Requirements : Minimum 2 GB RAM, 2 CPU Cores and Enough Hard disk Space. Software Requirements : Redhat Enterprise Linux 6 with dependencies for oracle database 18c installed and Kernel Parameters configured. Important Note: To avoid Port already in use error I will be configuring hostname at the end of installation. Installation method : Offline, Oracle Database 18c XE RPM file for linux downloaded and installed. Oracle Database 18c XE Features ############################### Oracle Multitenant - # of PDBs SQLJ Microsoft Distributed Transaction Coordinator support Native .NET Data Provider—ODP.NET .NET Stored Procedures Online index rebuild Online table organization Online table redefinition Trial recovery Fast-start fault recovery Flashback Table Flashback Database Cross-platform Backup and Recovery Sharded Queues Network Compression Client Side Query Cache Query Results Cache PL/SQL Function Result Cache Adaptive Execution Plans In-Memory Column Store In-Memory Aggregation Attribute Clustering Column-Level Encryption Tablespace Encryption Oracle Advanced Security Oracle Database Vault Oracle Label Security Centrally Managed Users Fine-grained auditing Privilege Analysis Real Application Security Redaction Transparent Sensitive Data Protection Virtual Private Database Oracle Spatial and Graph Property Graph and RDF Graph Technologies (RDF/OWL) Partitioned spatial indexes Oracle Partitioning Oracle Advanced Analytics Oracle Advanced Compression Advanced Index Compression Prefix Compression (also called Key Compression) Basic Table Compression Deferred Segment Creation Bitmapped index, bitmapped join index, and bitmap plan conversions Transportable tablespaces, including cross-platform and full transportable export and import Summary management—Materialized View Query Rewrite.
Views: 22 java frm