(在MySQL 5.1.36上测试)

found_rows() : select
row_count() : update delete insert

 

注:需要配合相应的操作一起使用,否则返回的值只是1和-1(都是不正确的值)

示例:

drop database if exists `mytest`;
create database `mytest`;
use `mytest`;

drop table if exists `MyTestTable`;
create table `MyTestTable`(`ID` int ,`Name` varchar(10));


 
insert into `MyTestTable`(`ID`,`Name`)
select '1','role1' union all
select '2','role2' union all
select '3','role3';
select row_count(); -- 输出3(返回新添加的记录数),[注:如果使用insert into...values只返回1]
select * from `MyTestTable`;
select found_rows(); -- 输出3(返回选择的行数)



update `MyTestTable` set `Name`='people';
select row_count(); -- 输出3(返回修改的行数)


delete from `MyTestTable`;
select row_count(); -- 输出3(返回删除的行数)