根据身份证判断男女的规则:二代身份证为18位,判断倒数第二位,第二位若为奇数,性别为男:偶数则为女 一代身份证为15为,判断倒数第一位,规则同上. update 表名 set 表名.字段名= case when substring(表名,身份证字段,17,1)%2=1 and length(表名.身份证字段) =18 then "男" when substring(表名,身份证字段,17,1)%2=0 and length(表名.身份证字段) =18 then "女"
在Sql Server触发器中判断操作是Insert还是Update还是Delete DECLARE @IsInsert bit, @IsUpdate bit, @IsDelete bit IF EXISTS(SELECT 1 FROM inserted) AND NOT EXISTS(SELECT 1 FROM deleted) SET @IsInsert = 1ELSE SET @IsInsert = 0 IF EXISTS(SELECT 1 FROM inse
Transact-SQL Exists Sentences--判断数据库是否存在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存在IF ESISTS(SELECT * FROM dbo.sysobjects WHERE id=object_id(N'[dbo].[表名]') AND OBJ
Transact-SQL Exists Sentences--判断数据库是否存在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存在IF ESISTS(SELECT * FROM dbo.sysobjects WHERE id=object_id(N'[dbo].[表名]') AND OBJ
1 判断数据库是否存在Sql代码 if exists (select * from sys.databases where name = ’数据库名’) drop database [数据库名] if exists (select * from sys.databases where name = ’数据库名’) drop database [数据库名]2 判断表是否存在Sql代码 if exists (select * from sysobjects where id = objec
代码如下 select distinct G.* ,(select BUSINESS_NAME from BusinessInfo where BusinessInfo.BUSINESS_BID=G.G_BUSINESS_ID) as BUSINESS_NAME ,(select sum(StockGNum) from StockDetail where StockDetail.StockGID =G.G_ID) as StockGNum ,(select sum(StockRemovalGNu
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存在 ) -- 删除表 drop table [dbo].[表名] GO --------------- --判断要创建临时表是否存在 If Object_Id('Tempdb.dbo.#Test') Is Not Null
邓老师(老邓)教的 if exists(select * from sysobjects where name='Table_88') drop table Table_88 偷的((*^__^*) 嘻嘻……) if exists (select * from sys.objects where object_id = object_id(N'Table_1') and type in (N'U')) drop table Table_1
1.创建存储过程: CREATE PROCEDURE proc_pr ---将create修改成alter可以修改存储过程: AS BEGIN IF EXISTS(SELECT * FROM sysobjects WHERE TYPE='U' AND NAME='te') BEGIN PRINT '存在要删除的表te'; DROP TABLE te; PRINT '已经删除表te'; END ELSE PRINT '不存在表te'; IF EXISTS(SELECT * FROM sysobje
1.关于复制类型 快照发布:发布服务器按预定的时间间隔向订阅服务器发送已发布数据的快照. 事务发布:在订阅服务器收到已发布数据的初始快照后,发布服务器将事务流式传输到订阅服务器. 对等发布:对等发布支持多主复制.发布服务器将事务流式传输到拓扑中的所有对等方.所有对等节点可以读取和写入更改,且所有更改将传播到拓扑中的所有节点. 合并发布:在订阅服务器收到已发布数据的初始快照后,发布服务器和订阅服务器可以独立更新已发布数据.更改会定期合并.Microsoft SQL Server Compact E
SQL Server 1创建触发器 GO BEGIN IF (object_id('WMY', 'tr') is not null) DROP trigger WMY END; GO CREATE TRIGGER WMY ON Student Instead of INSERT AS BEGIN INSERT INTO Student (number,name) VALUES (1205,'角色2'); END; --Begin 与end相当于{},是一个语句块,可有可无此处为演示所用 --ON