mysql如何查询最后一条记录

小编给大家分享一下mysql如何查询最后一条记录，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

mysql查询最后一条记录的方法：1、查看当前数据库中的表及表结构；2、根据ID自增长，对ID字段进行倒序排序并查看第一行；3、根据当前insert语句并使用函数last_insert_id()查看最后一条记录即可。

MySQL查询最后一条记录

一、环境和数据准备

1.查看当前数据库中的表

mysql> show tables;+----------------+| Tables_in_test |+----------------+| my_insert1 || my_insert2 |+----------------+

2.查看my_insert1表结构

mysql> show create table my_insert1\G;*************************** 1. row ***************************Table: my_insert1Create Table: CREATE TABLE `my_insert1` (`name` varchar(10) CHARACTER SET latin1 DEFAULT NULL,`password` varchar(32) CHARACTER SET latin1 DEFAULT NULL) ENGINE=InnoDB DEFAULT CHARSET=utf81 row in set (0.00 sec)

3.查看my_insert2表结构　　

mysql> show create table my_insert2\G;*************************** 1. row ***************************       Table: my_insert2Create Table: CREATE TABLE `my_insert2` (  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,  `name` varchar(10) CHARACTER SET latin1 DEFAULT NULL,  `password` varchar(32) CHARACTER SET latin1 DEFAULT NULL,  PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf81 row in set (0.00 sec)

4.向表my_insert1和my_insert2表中插入记录

mysql> insert into my_insert1(name,password) values ('黄飞鸿',password(123456)),('李小龙',password(123456)); mysql> insert into my_insert2(id,name,password) values (null,'黄飞鸿',password(123456)),(null,'李小龙',password(123456));

5.查看表的记录

mysql> select * from my_insert1;+-----------+----------------------------------+| name      | password                         |+-----------+----------------------------------+| 黄飞鸿    | *6BB4837EB74329105EE4568DDA7DC67 || 李小龙    | *6BB4837EB74329105EE4568DDA7DC67 |+-----------+----------------------------------+ mysql> select * from my_insert2;+----+-----------+----------------------------------+| id | name      | password                         |+----+-----------+----------------------------------+|  1 | 黄飞鸿    | *6BB4837EB74329105EE4568DDA7DC67 ||  2 | 李小龙    | *6BB4837EB74329105EE4568DDA7DC67 ||  3 | 李连杰    | *6BB4837EB74329105EE4568DDA7DC67 |+----+-----------+----------------------------------+

二、当表中没有ID自增长字段和有ID自增长查看最后一条记录的方式

1.由于my_insert1,没有ID自增长,查看当前表中有多少条记录

mysql> select count(*) from my_insert1;+----------+| count(*) |+----------+| 2 |+----------+1 row in set (0.00 sec)

2.查看当前表的第2行记录

mysql> select * from my_insert1 limit 1,1;+-----------+----------------------------------+| name | password |+-----------+----------------------------------+| 李小龙 | *6BB4837EB74329105EE4568DDA7DC67 |+-----------+----------------------------------+1 row in set (0.00 sec)

3.根据ID自增长，使用子查询查看表ID字段最大值

mysql> select *   from my_insert2 where id=(select max(id) from my_insert2);+----+-----------+----------------------------------+| id | name      | password                         |+----+-----------+----------------------------------+|  3 | 李连杰    | *6BB4837EB74329105EE4568DDA7DC67 |+----+-----------+----------------------------------+

4.根据ID自增长，对ID字段进行倒序排序，并查看第一行

mysql> select * from my_insert2 order by id desc limit 1;+----+-----------+----------------------------------+| id | name      | password                         |+----+-----------+----------------------------------+|  3 | 李连杰    | *6BB4837EB74329105EE4568DDA7DC67 |+----+-----------+----------------------------------+

5.可以根据当前insert语句使用函数last_insert_id(),查看最后一条记录

mysql> insert into my_insert2(id,name,password) values(null,'霍元甲',password('123456'));Query OK, 1 row affected, 1 warning (0.00 sec) mysql> select * from my_insert2 where id=(select last_insert_id());+----+-----------+----------------------------------+| id | name      | password                         |+----+-----------+----------------------------------+|  4 | 霍元甲    | *6BB4837EB74329105EE4568DDA7DC67 |+----+-----------+----------------------------------+1 row in set (0.00 sec)

以上是"mysql如何查询最后一条记录"这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注行业资讯频道！