建表语句点击详见
– 查询至少有一门课与学号为"01"的同学所学相同的同学的信息
SELECT
DISTINCT st
.*
FROM student st
LEFT JOIN score sc
ON sc
.s_id
=st
.s_id
WHERE sc
.c_id
IN (
SELECT
sc2
.c_id
FROM student st2
LEFT JOIN score sc2
ON sc2
.s_id
=st2
.s_id
WHERE st2
.s_id
='01'
)
转载请注明原文地址:https://blackberry.8miu.com/read-26943.html