📄 新建 文本文档 (5).txt
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delete
from students
where studentname='Joe Adams'
delete
from enrolls
where enrolls.student=
(select enrolls.student
from students,enrolls
where students.student=enrolls.student and studentname='Joe Adams')
delete
from students
where studentname='Joe Adams'
delete
from enrolls
where enrolls.student=
(select enrolls.student
from students,enrolls
where students.student=enrolls.student and studentname='Joe Adams')
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