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as
declare @Department int
select @Department=a.Department
from company.dbo.employee a
inner join company.dbo.department b
on a.Department=b.ID
where a.ID=@ID
if @@ROWCOUNT>0
begin
select *
from company.dbo.department
where ID=@Department
select * from company.dbo.employee
where Department=@Department
end
else
begin
RAISERROR('No record found',10,1)
end ÉÏÀýÖеÄ@DepartmentÊDZ»Ñ¡Ôñ³öÀ´µÄÖµ,È»ºóÓÃÀ´ÎªÏÂÃæµÄifÓï¾ä¿éÖеIJéѯ·þÎñµÄ.


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select *from customers
 
select *from orders
 
select customers.cust_id, orders.order_num  from customers inner join orders on customers.cust_id=orders.cust_id
 
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SQL ÖÐWith as µÄÓ÷¨

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SQl XmlºÍC# XmlÊý¾ÝµÄÒ»µã²Ù×÷×ܽá
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CREATE TABLE [dbo].[TestXml](
 [ID] [bigint] IDENTITY(1,1) NOT NULL,
 [Message] [xml] NULL ......
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