在MySQL中现有的int列的值中添加字符？
要将字符添加到现有的int列值中，请使用MySQL CONCAT()。让我们首先创建一个表-
mysql> create table DemoTable(
Amount int
);
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable values(709);mysql> insert into DemoTable values(34560);
mysql> insert into DemoTable values(90854);
mysql> insert into DemoTable values(3456);
使用select语句显示表中的所有记录-
mysql> select *from DemoTable;
这将产生以下输出-
+--------+| Amount |
+--------+
| 709 |
| 34560 |
| 90854 |
| 3456 |
+--------+
4 rows in set (0.00 sec)
以下是在列值中添加字符的查询-
mysql> select concat('The Product Amount is=',Amount) AS AddingCharacters from DemoTable;这将产生以下输出-
+-----------------------------+| AddingCharacters |
+-----------------------------+
| The Product Amount is=709 |
| The Product Amount is=34560 |
| The Product Amount is=90854 |
| The Product Amount is=3456 |
+-----------------------------+
4 rows in set (0.00 sec)
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