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;
SELECT column_name FROM table_name
ORDER BY column_name DESC
LIMIT 1;
SELECT name FROM Websites
ORDER BY id DESC
LIMIT 1;
SELECT column_name FROM table_name
ORDER BY column_name DESC
WHERE ROWNUM <=1;
SELECT name FROM Websites
ORDER BY id DESC
WHERE ROWNUM <=1;
在本教程中,我们将使用 shulanxt 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 | 树懒学堂 | http://www.shulanxt.com/ | 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 |
+----+---------------+---------------------------+-------+---------+
下面的 SQL 语句选取 “Websites” 表的 “name” 列中最后一个记录的值:
SELECT name FROM Websites
ORDER BY id DESC
LIMIT 1;