库是否存在
if exists(select * from master.sysdatabases wherename=N'库名')
print 'exists'
else
print '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, N'IsUserTable') =1)
-- 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
Begin
print '存在'
End
Else
Begin
print '不存在'
End
---------------
-- 判断要创建的存储过程名是否存在
if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[存储过程名]') and OBJECTPROPERTY(id, N'IsProcedure')= 1)
-- 删除存储过程
drop procedure [dbo].[存储过程名]
GO
---------------
-- 判断要创建的视图名是否存在
if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[视图名]') and OBJECTPROPERTY(id, N'IsView') =1)
-- 删除视图
drop view [dbo].[视图名]
GO
---------------
-- 判断要创建的函数名是否存在
if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[函数名]') and xtype in (N'FN', N'IF', N'TF'))
-- 删除函数
drop function [dbo].[函数名]
GO
if col_length('表名', '列名') is null
print '不存在'
select 1 from sysobjects where id in (select id from syscolumnswhere name='列名') and name='表名'
一些杂乱:
create procedure dbo.table1_proc //插入存储过程
(
@tableName varchar(50),
@loginName varchar(50),
@loginPwd varchar(16),
@sex char(2),
@email varchar(100),
@address varchar(225),
@phone varchar(11),
@score int,
@lastId int
)
as
begin
set nocount on;
insert into table1
values(@tableName,@loginName,@loginPwd,@sex,@email,@address,@phone,@score)
set @lastId=IDENT_CURRENT('tableId')
end
exec dbo.table1_proc @lastId,'唐先生','tang','123456','男','fwew@qq.com','上海','1365656785',99
---------------------------------------------
declare @lastId int
set @lastId=@lastId
--------------------------------------------
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
create procedure dbo.table1UpdataById_proc //更新
(
@tableName varchar(50),
@phone varchar(11),
@tableId int
)
as
begin
update table1 set tableName=@tableName,phone=@phone where tableId=@tableId
end