server|存储过程

SQL Server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>,<Primary 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。

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CREATE procedure sp_GenUpdate
TableName varchar(130),
PrimaryKey varchar(130),
ProcedureName varchar(130)
as
set nocount on

declare maxcol int,
TableID int
'knowsky.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 <> PrimaryKey and systypes.name <> 'sysname'
union
select 'WHERE ' + PrimaryKey + ' = ' + PrimaryKey,(2 * maxcol) + 4 as colorder
order by colorder

select type from #tempproc order by colorder

drop table #tempproc
/*＝＝＝＝＝＝＝源程序结束＝＝＝＝＝＝＝＝＝*/