db2 truncate table

Tags: using SP strong data div on BS SQL MySQLTruncate use note due to the TRUNCATE TABLE a_table command once, take the lesson and record it as a warning!MySQL TRUNCATE TABLE a_table command affected result description, hands-on experience command TRUNCATE

Truncate table nameFast and efficient, because the truncate table function is the same as the DELETE statement without the WHERE clause: both DELETE all rows in the TABLE.However, truncate table is faster than DELETE and uses less

Tags: using SP for strong file data on Div BSAs we all know, TRUNCATE table can be used to delete the contents of the entire table, which is not the same as when the delete is behind the where condition. But beyond that, do we know that there are other differences between them? In this chapter we will discuss the differences between

First, Analog truncate operation:Sql> Conn Scott/tigerSql> Select COUNT (*) from T;COUNT (*)----------13sql> truncate TABLE t;Second, restore the data of the TRUNCATE TABLE1. Download the HELLODBA Recovery tool to the database serverUse the terminal under Linux, as follows:Under Windows, enter the following URL:Http://

Oracle Databases perform unconventional recoveries through Oracle Dul after truncate deletion of a table of data in the absence of a backup1. Preparing the Oracle Dul test EnvironmentSql> Select COUNT (*) from T_xifenfei; COUNT (*)----------67854sql> desc T_xifenfei Name Null? Type-----------------------------------------------------------------------------OWN

Degree from strong to weak 1, drop table TB drop directly delete the form, no way back 2, truncate (table) TB Delete all data in the table, cannot be used with where 3, delete from TB (where) Delete data in a table (can make a row) difference:

Tags: recover autonumber SQL Server from Run efficiency data ble cannot--Removes all data from the table, automatically numbering zeros.--1.delete from Biao--Removes all data from the table and automatically numbers the zeros.--2.truncate Table Biao--truncate Features:The--1

Recently released to the market version of the frequent occurrence of database table corruption, the specific phenomenon is that the Select Table hint table does not exist, but to view the data file, the corresponding table of IBD and frm files are in.Through the statistics of multiple failures, found several frequentl

TRUNCATE table is functionally the same as a DELETE statement without a WHERE clause: Both delete all rows in the table. However, TRUNCATE TABLE is faster than DELETE and uses less system and transaction log resources. The Delete statement deletes one row at a time and rec

Today, when cleaning up business-Library data, developers say they can use TRUNCATE table to clean up all data from two tables Both tables have their own ID, all made table partitions, single table 200GB, two tables using SELECT ident_current (') The current self appreciation is 3000012, the two tables are almost ide

Tags: rop cat cut Media te Pro for a login SQL caseThe requirement for TRUNCATE permissions in an Oracle document is that a table is required under the currently logged-on user, or the currently logged-on user has the permission to drop any table.However, if the first condition is not met, the permission is too large for a user to satisfy the second condition.Refer to the discussion on the Web, you can use