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select * from
delete from department where departmentid=1
insert Department(DepartmentId,DepartmentName) values(1,'¼¼Êõ²¿')
update Department set departmentname='ÐÅÏ¢¼¼Êõ²¿' where departmentid=1
--ɾ³ý±í
drop table department
--ɾ³ýÊý¾Ý¿â
drop database bai
--ͳ¼ÆÊý¾Ý¿â±íÖмǼ
select count(*) as Êý¾Ý¿â¼Ç¼ from Department


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Sales
Date
Los Angeles
$1500
Jan-05-1999
San Diego
$250
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