SQL函数:sql function LAST

LAST() 函数返回指定的列中最后一个记录的值。

SELECT LAST(column_name) FROM table_name;

注释：只有 MS Access 支持 LAST() 函数。

SELECT TOP 1 column_name FROM table_name
ORDER BY column_name DESC;

SELECT TOP 1 name FROM Websites
ORDER BY id DESC;

#### MySQL 语法

SELECT column_name FROM table_name ORDER BY column_name DESC LIMIT 1;


#### 实例

SELECT name FROM Websites ORDER BY id DESC LIMIT 1;


#### Oracle 语法

SELECT column_name FROM table_name ORDER BY column_name DESC WHERE ROWNUM <=1;


#### 实例

SELECT name FROM Websites ORDER BY id DESC WHERE ROWNUM <=1;


#### 演示数据库

在本教程中，我们将使用 RUNOOB 样本数据库。

下面是选自 "Websites" 表的数据：

+----+--------------+---------------------------+-------+---------+ | id | name | url | alexa | country | +----+--------------+---------------------------+-------+---------+ | 1 | Google | https://www.google.cm/ | 1 | USA | | 2 | 淘宝 | https://www.taobao.com/ | 13 | CN | | 3 | DBASK | https://dbask.cn/ | 4689 | CN | | 4 | 微博 | http://weibo.com/ | 20 | CN | | 5 | Facebook | https://www.facebook.com/ | 3 | USA | | 6 | 百度 | https://www.baidu.com/ | 4 | CN | | 7 | stackoverflow | http://stackoverflow.com/ | 0 | IND | +----+---------------+---------------------------+-------+---------+

###  SQL LAST() 实例

下面的 SQL 语句选取 "Websites" 表的 "name" 列中最后一个记录的值：

#### 实例

SELECT name FROM Websites ORDER BY id DESC LIMIT 1;

执行以上 SQL 结果如下所示：

![](https://www.runoob.com/wp-content/uploads/2013/09/last1.jpg)

来源：https://www.runoob.com/sql/sql-func-last.html

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