drop tablespace

innodb_file_per_table in the configuration file (my. cnf). Advantages: 1. Each table has its own independent tablespace. 2. Data and indexes of each table are stored in its own tablespace. 3. A single table can be moved in different databases. 4. space can be recycled (except for the drop table operation, the table cannot be recycled by itself) a) the

Oracle temporary tablespace is mainly used to query and store some buffer data. Temporary tablespace consumption is mainly caused by sorting the intermediate query results. Restarting the database can release temporary tablespace. If the instance cannot be restarted, the temp tablespace will continue to grow as the pro

/tbs_sys_ptcl.ora' size 50 MAutoextend on;(2) Temporary tablespaceSpecify the size: alter tablespace tbs_temp_ptcl add tempfile '/oracle/oradata/ora242/YM_tbs/tbs_temp_ptcl.dbf' size 50 M;Automatic Scaling: alter tablespace tbs_temp_ptcl add tempfile '/oracle/oradata/ora242/YM_tbs/tbs_temp_ptcl.dbf' size 50 MAutoextend on; 6. delete users and their tablespaces:(1) Delete A User:Drop user lbi_sys_ptcl cascad

for convenient management. Disadvantages:All the data and indexes are stored in one file to store a very large file. although a large file can be divided into multiple small files, however, multiple tables and indexes are stored in a table space in a hybrid manner. after a large number of deletion operations are performed on a table, there will be a lot of gaps in the table space, especially for statistical analysis, applications such as the daily value system do not use the most shared

query statements. do not define a query statement, especially in software that provides custom queries.3. carefully plan the table index. If the temporary tablespace is temporary, the space is not released, but is marked as free after the sort ends. If the temporary tablespace is permanent, SMON is responsible for releasing it after the sort ends, they do not need to be manually released. View which users

-- Create a data table space Create Tablespace ciciloggingdatafile ' /Usr/lib/Oracle/Xe/oradata/Cici. DBF ' Size 32 mautoextend On Extent management local; -- Create a user and specify a tablespace Create User Cici identified By Ciciprofile Default Default Tablespace ciciaccount unlock; Grant Connect, Resource To Cici; Grant Create Session T

Oracle table space Export, user deletion, table space deletion, user new, table space new, data import shellExecute the script with a non-Oracle userParameter name$1:base the user name of the table space$: User name for synchronization table spaceWorking with scenesTest, base table space is used to upgrade and build some solidified data. Synchronous table space for testing, leveling data each time and base table space Copy Code code as follows: #!/bin/sh Oraclehome= $ORACLE _home

[Transfer tablespace] use the EXPDP/IMPDP tool's transfer tablespace to complete data migration This article demonstrates how to use the EXPDP/IMPDP tool to completely simulate the process of transferring tablespaces for your reference.Task Description: transfers the data in the tbs_sec tablespace of the sec user on the secdb1 instance to the secooler user on the

done by building a new slave dump from the main repository, and then in the dump to the slave library, the action is larger.3. For InnoDB Hot backup operations (or direct cold), the file that requires CP is larger each time. If there is now a 180G tablespace, but the actual data is only more than 50 g, then we will face each need to copy 180G data.Stand-alone table space:Set in configuration file (MY.CNF): Innodb_file_per_table is onAdvantages:1. Eac

After switching the new undo tablespace In the Undo automatic tablespace mode, you must drop the old undo tablespace, However, because the activity is not completely completed during the switchover, As a result, the error "ORA-30013: Restoring tablespace 'undotbs3' is cu

Label:1. Create a temporary table spaceCREATE Temporary tablespace test_tempTempfile ' C:\oracle\product\10.1.0\oradata\orcl\test_temp01.dbf 'SIZE 32MAutoextend onNEXT 32M MAXSIZE 2048MEXTENT MANAGEMENT LOCAL;Generally starting from the second step, you can2. Create User table SpaceCREATE tablespace GzjssapceLOGGINGDataFile ' E:\oracle\product\10.2.0\oradata\orcl\gzjs. DBF 'SIZE 32MAutoextend onNEXT 32M MAX

The temporary and undo files of the database do not need to be backed up. They can be restored after they are lost, and data will not be lost. 1. After files in the temporary tablespace are lost, they are automatically created after the database is started. No intervention is required. Simulation: After the database is shut down, the temporary files are deleted and automatically created upon startup. 2. The file corresponding to the Undo

testspace drop datafile'D:/oracletest/test002.dbf'; SQL> alter tablespace testspace drop datafile'D:/oracletest/test002.dbf'; SQL> alter tablespace testspace drop datafile 'd:/oracletest/test002.dbf '; SQL> alter tablespace