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<1>create:
ALTER proc [dbo].[common_proc]
@sql1 varchar(5000),
@sql2 varchar(5000) OUTPUT
as begin
set @sql2=@sql1+‘‘;
end;
<2>call:
exec [dbo].[common_proc] @sql , @midsql OUTPUT
set @sql = (select @midsql)
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原文地址:http://www.cnblogs.com/meisp/p/5598883.html