库是否存在 if exists(select * from master..sysdatabases where name=N'库名') print 'exists' else print 'not exists' --------------- -- 判断要创建的表名是否 ...
库是否存在 if exists select from master..sysdatabases where name N 库名 print exists elseprint not exists 判断要创建的表名是否存在 if exists select from dbo.sysobjects where id object id N dbo . 表名 and OBJECTPROPERTY id ...
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库是否存在 if exists(select * from master..sysdatabases where name=N'库名') print 'exists' else print 'not exists' --------------- -- 判断要创建的表名是否 ...
1、判断表是否存在 select * from sysobjects where id = object_id(表名) and OBJECTPROPERTY(id, N'IsUserTable') = 1 2、判断视图是否存在 select table_name from ...
判断数据库是否存在 if exists (select * from sys.databases where name = '数据库名') --drop database [数据库名] 判断表是否存在 if exists (select * from sysobjects where ...
1、判断表是否存在 select * from sysobjects where id = object_id(表名) and OBJECTPROPERTY(id, N'IsUserTable') = 1 2、判断视图是否存在 select table_name from ...
IF OBJECT_ID('TEMPDB..#BCROSSREFERENCE ') IS NOT NULL DROP TABLE #BCROSSREFERENCE IF OBJECT_ID(' ...
SQLServer 中的存储过程中判断临时表是否存在,存在则删除临时表 1 2 3 4 5 6 7 8 9 10 IF OBJECT_ID('TEMPDB..#BCROSSREFERENCE ') IS NOT NULL DROP TABLE ...
一.比如说要判断表A中的字段C是否存在两个方法: (1) 直接查表——有点笨,有点常规 IF EXISTS ( SELECT 1 FROM SYSOBJECTS T1 INNER JOIN SYSCOLUMNS T2 ON T1.ID=T2.ID ...
判断数据库是否存在if exists (select * from sys.databases where name = '数据库名')drop database [数据库名]判断表是否存在if exists (select * from sysobjects where id ...