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declare @lcSqlCommand nvarchar(100)
declare @t table (id int IDENTITY,orderDate datetime)
insert into @t
select orderDate
from Northwind..Orders
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select top 10 *
from @t a
where id not in
(select top 10 id
from @t b
)
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from Tab1 a,Tab2 b
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CREATE TABLE [StuInfo] (
[recno] [int] IDENTITY (1, 1) NOT NULL ,
[stuid] [varchar] (10) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[stuname] [varchar] (10) COLLATE Chinese_PRC_CI_AS NOT NULL
) ON [PRIMARY]
GO
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begin
insert into emp values('10','KING',5000);
insert into emp values('10','CLARK',2450);
insert into emp values('10','MILLER',1300);
insert into emp values('20','SCOTT',3000);
insert into emp v ......
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ALTER TABLE tb ALTER COLUMN aa Byte Êý×Ö[×Ö½Ú]
ALTER TABLE tb ALTER COLUMN aa Long Êý×Ö[³¤ÕûÐÍ]
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