MySQL数据库查询练习（子查询分步教程）

注：数据库表格附录在文末 – 1、与张三同乡的男生姓名 step1:SELECT snativeplace FROM student WHERE sname=‘张三’ step2:SELECT sname FROM student WHERE ssex=‘男’ AND snativeplace=(step1) AND sname != ‘张三’ SELECT sname FROM student

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