MySQL 如何搜索并替换字符串开头的特定字符

为此，您可以使用INSERT()。让我们首先创建一个表 –

mysql> create table DemoTable
   -> (
   -> ZipCode varchar(200)
   -> );
Query OK, 0 rows affected (0.47 sec)

使用insert命令在表中插入一些记录 –

mysql> insert into DemoTable values('9030');
Query OK, 1 row affected (0.15 sec)

mysql> insert into DemoTable values('3902');
Query OK, 1 row affected (0.14 sec)

mysql> insert into DemoTable values('9083');
Query OK, 1 row affected (0.20 sec)

mysql> insert into DemoTable values('9089');
Query OK, 1 row affected (0.13 sec)

使用select语句显示来自表的所有记录 –

mysql> select *from DemoTable;

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输出

+---------+
| ZipCode |
+---------+
| 9030    |
| 3902    |
| 9083    |
| 9089    |
+---------+
4 rows in set (0.00 sec)

以下是在字符串开头搜索和替换字符的查询。这里，我们仅对以90开头的ZipCode记录进行操作 –

mysql> update DemoTable set ZipCode=INSERT(ZipCode, 1, 2, 'Country-AUS-')
   -> where ZipCode LIKE '90%';
Query OK, 3 rows affected (0.26 sec)
Rows matched: 3  Changed: 3 Warnings: 0

让我们再次检查表记录 –

mysql> select *from DemoTable;

输出

+----------------+
| ZipCode        |
+----------------+
| Country-AUS-30 |
| 3902           |
| Country-AUS-83 |
| Country-AUS-89 |
+----------------+
4 rows in set (0.00 sec)