teradata truncate table

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: 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

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

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