mysqlCRUD

一、介绍

CRUD即增加(Create)、查询(Retrieve)、更新(Update)、删除(Delete)四个单词的首字母缩写。

In computing, CRUD is an acronym for create, Retrieve, update, and delete. It is used to refer to the basic functions of a database or persistence layer in a software system.

C reate new records

R etrieve existing records

U pdate existing records

D elete existing records.

平常我们说的系统开发中的增改查删可以用CURD来表示 增加：Create 修改：Update查找：Read删除：Delete 外国人喜欢CRUD，表示增查改删： 增加：Create读取查询：Retrieve更新：Update删除：Delete

二、insert和repleace 

insert into stu value(null,'李四',22,'女','郑州');

insert stu(name,address) values('李平','北京'),('刘阳','上海'),('赵强','广州');

replace into stu values(null,'王五',25,'女','河南省郑州市');

 insert 15:12:38

标签：insert,records,Create,CRUD,Update,stu,mysqlCRUD
来源： https://www.cnblogs.com/zcxxcvbn/p/15908772.html