SQL-查询没有学全全部课的同窗，显示（学号、姓名）

表信息sql SELECT * FROM student s; SELECT * FROM teacher t; SELECT * FROM course c; SELECT * FROM student_core sc; --解法1：（WITH子句）code ----a.获得每一个同窗学过的课程数量 with s_no_sum as (select s.student_no s_no, cou

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