db2 truncate table

Notes on truncate table --- The following is a summary of the quotations of itpub's predecessors. After truncate table, oracle recycles the index of the table and its table to the initial size, that is, the size of the initial al

Oracle large table cleanup truncate... reusestorage Recently, a large table needs to be cleaned up, which requires no impact on performance. In MySQL, we can minimize I/O by using coreutils and hard links. Oracle can also minimize I/O by recycling space in batches. What is the problem.1. truncate

The Truncate statement is a distinctive statement in the OracleSQL system. The direct effect of Truncate is to clean up data in the data table. It is a typical DDL statement at a deeper level. The Truncate statement is a distinctive one in the Oracle SQL System. The direct effect of

Tags: blog ref tab BSP Tag Comment Original from Add table TRUNCATE TABLE wp_comments; Delete * from wp_comments; Where the table in the truncate operation can be omitted, the * in the delete operation can be omitted. Both of these are emptying the data in the Wp_

right! Removed very violently, as the eldest was well deserved Dick-----truncate. Infested occasions: TRUNCATE TABLE TB Trick: delete content, free space without deleting the definition. Unlike the drop, he just clears the table data, and he's more gentle. It is also a class, he only removes all the st

Tags: similarities and differences point LLB Val pos foreign URI dex size segmentTRUNCATE 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 statemen

(1) The DELETE statement performs the deletion by deleting one row from the table at a time and saving the row's delete operation as a transaction record in the log for the rollback operation. TRUNCATE table deletes all the data from the table at once and does not record the individual deletion records in the log, and

Oracle Update Data Tip Custom "ORA-20010: Cannot drop/truncate the table" errorJava.sql.batchupdateexception:ora-00604:error occurred at recursive SQL Level 2ORA-20010: The table cannot be drop/truncate.Ora-06512:at Line 12Org.springframework.jdbc.UncategorizedSQLException:Hibernate operation:could not execute JDBC batch update; Uncategorized SQLException for SQL

Truncate table t_test: Message 4711, level 16, status 1, 1st rows The table 't_ test' cannot be truncated because it has been published for replication. Error table forwarding from http://technet.microsoft.com/zh-cn/library/cc645613 (V = SQL .105). aspx 4711 16 No The

How to do the truncate operation for a primary table associated with a foreign key The primary and Foreign keys are mandatory associations between two tables provided by the database. They can also be implemented at the application layer. Advantages Disadvantages Primary and Foreign keys implemented by the database Guaranteed by the database layer mechanism, no additional applica

While it's not recommended to use commands to delete things in a database table, these delete commands are always useful.When it comes to deleting table data, the biggest thing you can remember is the delete.However, we do database development and read database data. It's less for the other two brothers.Now to introduce the other two brothers, is to delete the table