1：删除数据
delete from user where name =XXX
2:修改数据
update user(表) set name =XXX
3:增加数据
insert user（id,name ）values(1,"AAA")
1：删除数据
delete from user where name =XXX
2:修改数据
update user(表) set name =XXX
3:增加数据
insert user（id,name ）values(1,"AAA")
1：删除数据 delete from user where name =XXX 2:修改数据 update use...
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