--Reset identity column IFEXISTS(SELECT*FROMINFORMATION_SCHEMA.COLUMNS WHERECOLUMNPROPERTY( OBJECT_ID(QUOTENAME(table_schema)+'.'+QUOTENAME(@tableName) ), column_name,'IsIdentity' )=1 ) DBCCCHECKIDENT(@tableName,RESEED,0) End SETNoCountOFF 1、先找出没有外键约束的表,truncate 2、有外键的表,先delete,再复位identity列 于是得出, 语句丁...
TRUNCATE TABLE (Transact-SQL) 删除表中的所有行,而不记录单个行删除操作。TRUNCATE TABLE 与没有 WHERE 子句的 DELETE 语句类似;但是,TRUNCATE TABLE 速度更快,使用的系统资源和事务日志资源更少。 Transact-SQL 语法约定 语法 TRUNCATE TABLE [ { database_name.[ schema_name ]. | schema_name . } ] tab...
If the table contains an identity column, the counter for that column is reset to the seed value defined for the column. If no seed was defined, the default value1is used. To retain the identity counter, useDELETEinstead. ATRUNCATE TABLEoperation can be rolled back within a transaction. ...
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If the table contains an identity column, the counter for that column is reset to the seed value defined for the column. If no seed was defined, the default value 1 is used. To retain the identity counter, use DELETE instead.A TRUNCATE TABLE operation can be rolled back within a ...
createtablec(idintidentity(1,1),caint,cbint) insertintoc select1,2unionall select1,3 先来看看第一种需求:只要数据库中表是空的。 这个其实并不难,用一个游标循环得出所有表名,再清除所有表,delete或truncate table 提供几个语句:以下语句均在SQL2000/SQL2005/SQL2008下使用通过。
TABLE CURRENT_DATE LINENO TABLESAMPLE CURRENT_TIME LOAD TEXTSIZE CURRENT_TIMESTAMP MERGE THEN CURRENT_USER NATIONAL TO CURSOR NOCHECK TOP DATABASE NONCLUSTERED TRAN DBCC NOT TRANSACTION DEALLOCATE NULL TRIGGER DECLARE NULLIF TRUNCATE DEFAULT OF
When used with BACKUP LOG, the COPY_ONLY option creates a copy-only log backup, which doesn't truncate the transaction log. The copy-only log backup has no effect on the log chain, and other log backups behave as if the copy-only backup doesn't exist. For more information, see Copy...
Migrating TRUNCATE TABLE Statements from Oracle to SQL Server The TRUNCATE TABLE statement is similar between Oracle and Microsoft SQL Server. It is used to remove all of the rows from a table. The table structure and all of its indexes will continue to exist; it cannot be rolled back. Dele...
identity 非保留 保留 保留 if 非保留(不能是函数或 - - 类型) ifnull 非保留(不能是函数或 - - 类型) ignore - 保留 - ignore_extra_dat 非保留 - - a ilike 保留(可以是函数或类 - - 型) immediate 非保留 保留 保留 immutable 非保留 - - implementation - 非保留 - implicit 非保留 - - in...