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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
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drop table department
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drop database bai
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select count(*) as Êý¾Ý¿â¼Ç¼ from Department
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