下面的存储过程sp_GenUpdate就可以帮我生成更新数据的存储过程。
调用sp_GenUpdate存储过程的代码：
sp_GenUpdate 'Employees',
'INS_Employees'
生成sp_GenUpdate存储过程代码：
CREATE procedure
sp_GenUpdate
@TableName
varchar(130),
@PrimaryKey
varchar(130),
@ProcedureName
varchar(130)
as
set nocount
on
declare @maxcol
int,
@TableID
int
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