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4. 删除
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4. 删除
-- 普通删除
DELETE
FROM
test
WHERE
hours
=
40
LIMIT
1
-- 带子查询删除
DELETE
FROM
test
WHERE
hours
in
(
41
)
DELETE
FROM
test
WHERE
hours
not
in
(
select
DISTINCT
hours
from
works_on
)
Previous
3. 修改
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5. 期末复习
Last modified
3yr ago