zoukankan      html  css  js  c++  java
  • Oracle 检查约束check

    --检查约束
    create table test1(
           id number(10) primary key,
           email varchar2(10) check (email like '%@%')
    )
    drop table test1
    insert into test1 values(1,'12@6.com');
    select * from test1
    
    create table test2(
           id number primary key,
           gender varchar2(4) check(gender in('',''))
    )
    drop table test2
    select * from test2
    insert into test2 values(1,'')
    create table test30(         
         id number primary key,         
         sex varchar2(2) check(sex ='男' or sex='女')  
    );  

    参考:Oracle Check约束
  • 相关阅读:
    Maven
    Maven
    Maven
    Maven
    Maven
    Maven
    Maven
    Maven
    Maven教程
    SASS
  • 原文地址:https://www.cnblogs.com/zouhong/p/15339414.html
Copyright © 2011-2022 走看看