(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 ));
create database `mytest`;
use `mytest`;
drop table if exists `MyTestTable`;
create table `MyTestTable`(`ID` int ,`Name` varchar ( 10 ));
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)
转载于:https://blog.51cto.com/xiaogengguoguo/567726