db2 truncate table

Label:1. TRUNCATE TABLE XXX In the test, I hate the primary key of a table has been growing, always feel the most comfortable starting from 1, ^_^, TRUNCATE table can help me, compared to the delete from, it makes the data table f

Tags: differences between SQL rollback AMP Records Delete solutionPlease indicate the difference between delete from TableA truncate TABLE TableA in SQL ServerAnswer: Both can be used to delete all records in the table. The difference is that truncate is a DDL operation that moves the HWK so that the HWK value is 0 an

1. Thedrop table name Eg:drop table dbo. Sys_test2.truncate table name eg:truncate table dbo. Sys_test3.Delete from table name where column name = value Eg:delete from dbo. Sys_test where test= ' Test 'Second, Drop,

As we all know, drop table will seriously consume server I/O performance. If the size of the table to be dropped is large, it may even affect the normal online operation. First, let's take a look at why a table with a large drop capacity affects online services. Run drop table directly. mysql deletes all

First,syntax in SQL1. Thedrop table name Eg:drop table dbo. Sys_test2.truncate table name eg:truncate table dbo. Sys_test3.Delete from table name where column name = value Eg:delete from dbo. Sys_test where test= ' Test 'Second,dr

Address: http://steve-111.iteye.com/blog/750326 A few days ago, I accidentally truncate a table, and the data in the table is very important. In addition, the table data is not backed up, and the data backed up is not the latest. For a moment, I do not know what to do. I have found a lot of information on the Internet,

Label:mysqlfortruncatemysqcal aceonsclasstracking Select--' select * from ', Table_schema, '. ', table_name, ' to ' outfile '/work/opdir/repair '--concat (' UNION ALL ' --Select COUNT (1) as Count_, ' ', Table_schema, '. ', table_name, ' as Tbname from ', Table_schema, '. ', TABLE_NAME, ' ")--as Sql_ CONCAT (' select * from ', Table_schema, '.", TABLE_NAME, ' into outfile '/work/opdir/repair/', Table_sche MA, '. ', table_name, '. TSV '; Truncate

In the DBA's maintenance Management, index invalidation is a common problem, such as move, CTAs, swap partitions and so on will cause the index invalidation, the following experiment is to verify the drop partition, truncate partition partition on the local index and global index, in common, TRUNCATE TABLE tables are not invalidated by indexes. Basic Environment

Yesterday, successfully helped the customer recover a failed database. The reason for the failure is that the technician truncate several data dictionary tables in the database, which directly results in the database being unavailable. The database environment is an Oracle 9.2.0.7 RAC environment. The database is not backed up because of the large transaction volume of the database. Site inspection confirmed that the main truncated

In the actual working environment, if you Truncate several data dictionary tables in the database during operation, the database will no longer be available, this article will give a detailed explanation of a related case. The example is as follows: Database environment: Oracle Database 9.2.0.7 RAC. (Note: the database is not backed up because the transaction volume of the database is large ). Truncated tables found after check: SQL> select object_nam