【www.gdgbn.com--mysql教程】

MySQL 带分隔符的字符连接 concat_ws 与concat

mysql教程> select concat_ws("-","123",456,"789");
+--------------------------------+
| concat_ws("-","123",456,"789") |
+--------------------------------+
| 123-456-789                    |
+--------------------------------+
1 row in set (0.02 sec)

mysql>

concat实例

mysql> select concat("123",456);
+-------------------+
| concat("123",456) |
+-------------------+
| 123456            |
+-------------------+
1 row in set (0.00 sec)

mysql> select concat("123",456,"789");
+-------------------------+
| concat("123",456,"789") |
+-------------------------+
| 123456789               |
+-------------------------+
1 row in set (0.00 sec)

mysql>

本文来源：http://www.gdgbn.com/shujuku/23507/