如何在 MySQL 中获取表的倒数第二行?
需要使用 ORDER BY 子句获取 MySQL 表的倒数第二行。
语法如下。
select *from yourTableName order by yourColumnName DESC LIMIT 1,1;
为理解以上语法,让我们创建一个表。创建表的查询如下。
mysql> create table secondLastDemo -> ( -> StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> StudentName varchar(10) -> ); Query OK, 0 rows affected (0.52 sec)
使用 insert 命令在表中插入一些记录。
查询如下。
mysql> insert into secondLastDemo(StudentName) values('Larry');
Query OK, 1 row affected (0.15 sec)
mysql> insert into secondLastDemo(StudentName) values('Carol');
Query OK, 1 row affected (0.09 sec)
mysql> insert into secondLastDemo(StudentName) values('Bob');
Query OK, 1 row affected (0.10 sec)
mysql> insert into secondLastDemo(StudentName) values('Sam');
Query OK, 1 row affected (0.09 sec)
mysql> insert into secondLastDemo(StudentName) values('Mike');
Query OK, 1 row affected (0.10 sec)
mysql> insert into secondLastDemo(StudentName) values('David');
Query OK, 1 row affected (0.08 sec)
mysql> insert into secondLastDemo(StudentName) values('Maxwell');
Query OK, 1 row affected (0.10 sec)
mysql> insert into secondLastDemo(StudentName) values('Robert');
Query OK, 1 row affected (0.13 sec)
mysql> insert into secondLastDemo(StudentName) values('James');
Query OK, 1 row affected (0.14 sec)
mysql> insert into secondLastDemo(StudentName) values('Chris');
Query OK, 1 row affected (0.11 sec)
mysql> insert into secondLastDemo(StudentName) values('Ramit');
Query OK, 1 row affected (0.08 sec)使用 select 语句从表中展示所有记录。
查询如下。
mysql> select *from secondLastDemo;
以下是输出结果。
+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 1 | Larry | | 2 | Carol | | 3 | Bob | | 4 | Sam | | 5 | Mike | | 6 | David | | 7 | Maxwell | | 8 | Robert | | 9 | James | | 10 | Chris | | 11 | Ramit | +-----------+-------------+ 11 rows in set (0.00 sec)
以下是对 MySQL 表中获取倒数第二行的查询。
mysql> select *from secondLastDemo order by StudentId DESC LIMIT 1,1;
输出会展示倒数第二条记录。
+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 10 | Chris | +-----------+-------------+ 1 row in set (0.00 sec)
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