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create table xs ( 学号 char(10) check(学号 like'[A][0-9][0-9]'), 姓名 char(20) check(姓名 in('陈俊男','乔家劲','齐夏')), 性别 char(20) check(性别 in('男','女')), 民族 char(20) check(民族 in('汉族','苗族','回族')), 成绩 float check(成绩>=0 and 成绩<=100) ); insert into xs values ('A01','陈俊男','男','汉族',60) select * from xs;

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