使用MySQL REPLACE()更新文本列


Update a column of text with MySQL REPLACE()

让我们首先创建一个表-

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mysql> create table DemoTable
(
 Code varchar(100)
);
Query OK, 0 rows affected (0.50 sec)

使用insert命令在表中插入一些记录-

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mysql> insert into DemoTable values('8565-9848-7474');
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable values('9994-6464-8737');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable values('6574-9090-7643');
Query OK, 1 row affected (0.17 sec)

使用select语句显示表中的所有记录-

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mysql> select *from DemoTable;

这将产生以下输出-

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+----------------+
| Code      |
+----------------+
| 8565-9848-7474 |
| 9994-6464-8737 |
| 6574-9090-7643 |
+----------------+
3 rows in set (0.00 sec)

以下是替换列值的查询-

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mysql> update DemoTable
set Code=replace(Code,'9994-6464-8737','9994-9999-88888');
Query OK, 1 row affected (0.10 sec)
Rows matched : 3 Changed : 1 Warnings : 0

让我们再次检查表记录-

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mysql> select *from DemoTable;

这将产生以下输出-

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+-----------------+
| Code       |
+-----------------+
| 8565-9848-7474  |
| 9994-9999-88888 |
| 6574-9090-7643  |
+-----------------+
3 rows in set (0.00 sec)