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create table xs (学号 cher(10) check(学号 like'[A] [0-9][0-9]' ), 姓名 cher(8) check(姓名 in('王我','王七五','王哇')), 性别 chre(10) check(性别 in('男','女' )), 民族 cher(10) check(民族 in('汉族','苗族','回族')), 成绩 fioat check(成绩>=0 and 成绩 <=100) ); insert into xs values('A01','王我','男','汉族',100); select * from xs;

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