在mysql中实现嵌套查询 10
selectyr_student_info.namefromyr_student_infowhereyr_student_info.school_id=(selectyr...
select yr_student_info.name from yr_student_info where yr_student_info.school_id=(select yr_school_info.id from yr_school_info where yr_school_info.province='上海' and yr_school_info.city='上海')
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select yr_student_info.name from yr_student_info where yr_student_info.school_id in (select yr_school_info.id from yr_school_info where yr_school_info.province='上海' and yr_school_info.city='上海')
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