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SQL code:

create table student (sid varchar(10),sname varchar(10),sage varchar(10),ssex varchar(10))
create table Sc (sid varchar(10),cid varchar(10),score int)
insert into sc select '0001','001',80
insert into sc select '0001','001',90
insert into sc select '0001','002',70
insert into sc select '0001','003',85
insert into sc select '0002','001',50
insert into sc select '0003','001',60
insert into sc select '0003','002',70
insert into sc select '0004','001',60
insert into sc select '0004','002',70
insert into sc select '0004','003',80
insert into sc select '0004','004',90
insert into student select '0001','swichin','26','ÄÐ'
insert into student select '0002','lamh','27','ÄÐ'
insert into student select '0003','ballack','34','ÄÐ'
insert into student select '0004','lucio','32','ÄÐ'


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--> Éú³É²âÊÔÊý¾Ý±í: [tb]
IF OBJECT_ID('[student]') IS NOT


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sqlÓï¾äÎÊÌâ - Java / Web ¿ª·¢

select o_customer,o_price from orders having o_price >=avg(o_price)
select o_customer,o_price from orders where o_price >=(select avg(o_price) from orders)
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rs.open "select * from guide where city_name='±±¾©' order by pai desc",conn,1,1
do while not rs.eof or rs.bof
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