db2 truncate table

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How to copy a DB2 table to a DB2 database

This article describes how to copy a DB2 table to a DB2 database through one-way Q replication. We all know that Q replication is a new high-speed technology, I is generally used to move data between databases managed by IBM DB2 Universal Database. It is a highlight of the just-released

Delete and truncate table which can be used to delete data?

There are two ways to delete data in MySQL: one is the delete statement and the other is the truncate TABLE statement. You can use the WHERE clause to select the record to be deleted. However, using truncate table will delete all records in the table. Therefore, the delete s

Oracle 12C TRUNCATE TABLE CASCADE

Oracle 12C TRUNCATE TABLE CASCADE The truncate table cascade statement is provided in Oracle 12c to delete the association when the TABLE has a primary foreign key relationship and is cleared. The following is a demonstration. 1. Prepare the test tableSQL> CREATE

Retrieve the Table that has been mistakenly dropped/Truncate/Delete on the primary database on the standby Database

Retrieve the Table that has been mistakenly dropped/Truncate/Delete on the primary database on the standby Database Prerequisites: - Standby Database Must be in Flashback database mode. - Time at which Drop/Truncate/Delete Table happened should be within the db_flashback_retention_target and all the flashback and arch

TRUNCATE quickly deletes all data in a table

Note Compared to the DELETE statement, the TRUNCATE TABLE has the following advantages: The transaction log space used is small. The DELETE statement deletes one row at a time and records an entry for each row that is deleted in the transaction log. TRUNCATE table deletes data by releasing the data pages used to

Retrieve the wrong Drop/truncate/delete table from the main library on the Dataguard repository

Premise:-Standby database must is in Flashback database mode. -time at which Drop/truncate/delete Table happened should is within the db_flashback_retention_target and all the Flashba CK and archive logs should be availableRetrieve the wrong drop/truncate/delete from the main library on the Dataguard Repository table

TRUNCATE quickly deletes all the data in a table _mssql

Note Compared to the DELETE statement, the TRUNCATE TABLE has the following advantages: The transaction log space used is small. The DELETE statement deletes one row at a time and records an entry for each row that is deleted in the transaction log. TRUNCATE table deletes data by releasing the data pages used to

Oracle Learning (ii) Basic operation of the table +merge+truncate

into table. The merge condition is on (condition), which only updates the corresponding record in the into table when the condition is met, and when the condition is not satisfied, it can only add the corresponding data to the into table, and the data is only The data that corresponds to the current record in the using table

How to restore the MySQL truncate table (provided that binlog is backed up and enabled)

How to restore the MySQL truncate table (provided that binlog is backed up and enabled)1.1 back up database thunder mysqldump-S/tmp/mysql3316.sock -- single-transaction -- master-data = 2 thunder> thunder_full_2015112. SQL 1.2 for truncate table operation and insert into table

MySQL TRUNCATE TABLE command Usage Summary

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

Efficient Delete statement truncate table [tablename]

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

SQL Server removes the difference between data truncate and delete in a table (reproduced from the. NET Learning Network)

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

Oracle Table Recovery (TRUNCATE)

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://

Case: Oracle dul Data Mining No database backup unconventional recovery truncate deleted data table

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

Use of drop, truncate, and delete----Delete table data in MySQL statement

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:

Sqlserver--delete and truncate the difference between deleting a table

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

MYSQL Truncate trigger data table corruption case analysis

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/delete Table Differences

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

SQL SERVER TRUNCATE TABLE does not reset self-value of tables

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

Implementing a user truncate a table under another user in Oracle

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

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