简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Home> Database> Mysql Tutorial> body text

mysql-MySQL有关基本概念问题

WBOY
Release： 2016-06-06 09:33:28
Original
1106 people have browsed it

mysqlmysql 数据库

有没有人可以给讲解下foreign key, primary key 和 reference key 都是干嘛的。麻烦通俗点，百度给的概念有点不太懂。有例子更好。谢谢大神了。

Related labels：
mysql mysql 数据库
source：php.cn
Previous article：mysql-MySQL 无法撤销主键约束 Next article：mysql-Android想通过web service连接MySQL数据库
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
Write sql statements using tp5 framework How to write the following sql statement using tp? select * from `student` where sex = 1 a...
From 2021-09-03 10:30:52
0
3
848
spring - Regarding the problems encountered in keyword query: the problem of writing sql statements into java I am a database novice. My senior assigned me a keyword query task. I encountered some pro...
From 2017-05-27 17:41:38
0
2
585
PHP compound query statement? SELECT COUNT(*) AS num FROM lzh_cds c LEFT JOIN lzh_rds r ON c.rd_id=r.rd_id LEFT JOIN lzh...
From 2017-05-16 13:14:40
0
1
512
node.js - nodejs的根数据库连接的后端开源框架市面上有吗？ 想做一个dao层把curd各语句和各种查询条件抽出来要包含() or and like in notin 跨表查询 orderly group 甚至union不知道市面上有没有这种...
From 2017-04-17 16:02:18
0
1
298
mysql查询id,IN根据结果模糊问题 select id,title,content from myarticle where id IN(219,220,222,225) and content like '明明' ...
From 2017-04-17 13:47:58
0
2
476
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn：Public welfare online PHP training，Help PHP learners grow quickly！