Where is the bank
A:Beside the supermarket.
B:Before the supermarket.
C:Behind the supermarket.
发布时间:2024-04-01 10:46:01
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select bno from bank where bno not in(select bno from loan)
B:select bno from bank b left join loan l on b.bno=l.bno where cno is null
C:select bno from bank except select bno from loan;
D:select bno from bank b where not exists(select * from loan l where l.bno=b.bno)