create table student1
(
sid number constraint student_pk primary key,
sname varchar2(20) constraint student_name_notnull not null,
gender varchar2(2) constraint student_gender check (gender in(‘男’,’女’)),
email varchar2(40) constraint studewnt_email_unique unique
constraint student_email_notnull not null,
deptno number constraint student_fk references dept(deptno) on delete set null
);
文字的形式没有颜色对比,不宜看,特上下图
oracle,创建表
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转载自blog.csdn.net/qq_20240805/article/details/77980853
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