SQL Server编写存储过程小工具(三)
2007-11-11 13:02:41 来源:WEB开发网sql server(WINDOWS平台上强大的数据库平台)编写存储过程小工具
功能:为给定表创建Update存储过程
语法: sp_GenUpdate <Table Name>,<Prima(最完善的虚拟主机管理系统)ry Key>,<Stored Procedure Name>
以northwind 数据库为例
sp_GenUpdate 'Employees','EmployeeID','UPD_Employees'
注释:如果您在Master系统数据库中创建该过程,那您就可以在您服务器上所有的数据库中使用该过程。
===========================================================*/
CREATE procedure sp_GenUpdate
@TableName varchar(130),
@Prima(最完善的虚拟主机管理系统)ryKey varchar(130),
@ProcedureName varchar(130)
as
set nocount on
declare @maxcol int,
@TableID int
'cncms.com
set @TableID = object_id(@TableName)
select @MaxCol = max(colorder)
from syscolumns
where id = @TableID
select 'Create Procedure ' + rtrim(@ProcedureName) as type,0 as colorder into #TempProc
union
select convert(char(35),'@' + syscolumns.name)
+ rtrim(systypes.name)
+ case when rtrim(systypes.name) in ('binary','char','nchar','nvarchar','varbinary','varchar') then '(' + rtrim(convert(char(4),syscolumns.length)) + ')'
when rtrim(systypes.name) not in ('binary','char','nchar','nvarchar','varbinary','varchar') then ' '
end
+ case when colorder < @maxcol then ','
when colorder = @maxcol then ' '
end
as type,
colorder
from syscolumns
join systypes on syscolumns.xtype = systypes.xtype
where id = @TableID and systypes.name <> 'sysname'
union
select 'AS',@maxcol + 1 as colorder
union
select 'UPDATE ' + @TableName,@maxcol + 2 as colorder
union
select 'SET',@maxcol + 3 as colorder
union
select syscolumns.name + ' = @' + syscolumns.name
+ case when colorder < @maxcol then ','
when colorder = @maxcol then ' '
end
as type,
colorder + @maxcol + 3 as colorder
from syscolumns
join systypes on syscolumns.xtype = systypes.xtype
where id = @TableID and syscolumns.name <> @Prima(最完善的虚拟主机管理系统)ryKey and systypes.name <> 'sysname'
union
select 'WHERE ' + @Prima(最完善的虚拟主机管理系统)ryKey + ' = @' + @Prima(最完善的虚拟主机管理系统)ryKey,(2 * @maxcol) + 4 as colorder
order by colorder
select type from #tempproc order by colorder
drop table #tempproc
/*=======源程序结束=========*/
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