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mssql ÕæµÄ·Ç³£²î!

¿ªÈý¸öÏß³ÌÅÜÏÂÃæµÄÕâ¸ö Do() º¯Êý¾Í»á·¢ÉúËÀËø.
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C# code:

public void Do()
{
System.Text.StringBuilder sb = new StringBuilder();

sb.Append(@"
declare @branchid as varchar(50)
declare @maccolr as varchar(50)
declare @pkey as uniqueidentifier
declare @userid as varchar(50)
declare @styleid as varchar(50)
declare @colorid as varchar(50)
declare @sizeid as varchar(50)
declare @qty as int

set @branchid = 'y7500" + ID.ToString() + @"'
set @maccolr = '" + ID.ToString() + @"'
set @pkey = newid()
set @userid ='userid" + ID.ToString() + @"'

set @qty =10*" + ID.ToString() + @"

delete from pdaorderd
where pkey in
(
select pkey from pdaorder where branchid=@branchid and maccolr=@maccolr
)

delete from pdaorder where branchid=@branchid and maccolr=@maccolr

INSERT INTO [pdaorder]([pkey], [branchid], [userid], [maccolr])
select @pkey,@branchid,@userid,@maccolr

");

for(int i=0;i<1000;i++)
{
sb.Append(@"
INSERT INTO [pdaorderd]([pkey], [styleid], [colorid], [sizeid], [qty])
select @pkey,'style"+i.ToString()+"','color"+i.ToString()+"','size"+i.ToString()+


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