相反,TRUNCATE在删除数据页之前获取数据页上的锁;因此,它需要更少的锁和更少的资源。DELETE语句在事务日志中为每个删除的行创建一个条目,而TRUNCATE记录每个数据页的事务日志。TRUNCATE命令比DELETE命令快,因为它释放数据页而不是行,并在事务日志中记录数据页而不是行。 一旦使用TRUNCATE命令删除了记录,我们就无法将其...
Why can't I truncate a table which is being referenced by other table? This happens even if the child table does not have any records. I get ORA-02266. --- SQL> create table T1 ( col1 num
"SELECT * INTO table FROM" a stored procedure? Possible? "SELECT COUNT(*) FROM (SELECT..." not working "SELECT INTO" with indexes? "Simple" SQL to check for alpha or numeric charcters isn't working right "String or binary data would be truncated.\r\nThe statement has been terminated....
SELECT @TAILOR_HEILEI=TAILOR_HEILEI FROM dbo.ADPARM IF @TAILOR_HEILEI=0 BEGIN Declare Cur Cursor For Select DB_DATABASE From dbo.ADCOMP WHERE SUSPENDED='N' Open Cur Fetch next From Cur Into @DB_DATABASE While @@fetch_status=0 BEGIN SELECT @Sql='' SELECT @Sql='DELETE'+@DB_DATABASE+...
2009-04-14re: SQL Server: Why is TRUNCATE TABLE a DDL and not a DML operation and difference from DELETE thnx..for the information,it helped me a lot...rather added a n thing to my information!!! Bobby 2009-04-28re: SQL Server...
Need to split a string? Try Jeff Modens splitterhttp://www.sqlservercentral.com/articles/Tally+Table/72993/. Cross Tabs and Pivots, Part 1 – Converting Rows to Columns -http://www.sqlservercentral.com/articles/T-SQL/63681/ Cross Tabs and Pivots, Part 2 - ...
(1000)) ENGINE=MEMORY; TRUNCATE tmpInfusionTable; I changed the code so that instead of using truncate, I used drop then create. Since then, no more crashing. I don't have a development machine (or time) to try to reproduce this with a debug build, but it's a real bug and was ...
PRM is designed for Enterprise Database Recovery, which includes all Oracle DUL data recovery functionalities, and also easy-to-use GUI. PRM For Oracle Database 3.1 GUI: PRM almost can recovery Oracle database on all operating system, including: ...
class Book(Truncatable): ... 这将允许您在从 Truncatable 扩展的所有模型上调用 truncate。 Book.objects.truncate() 我还添加了一个使用级联的标志,该标志(危险区域)还将:“自动截断对任何指定表或由于 CASCADE 添加到组中的任何表具有外键引用的所有表.”,这显然更具破坏性,但将允许代码在原子事务内运...
Oracle Text - Version 11.2.0.1 to 12.1.0.1 [Release 11.2 to 12.1]: DRG-10599: Column Is Not Indexed After Running ALTER TABLE ... TRUNCATE PARTITION