如何在MySQL的字符串开头搜索和替换特定字符?
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) -> );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable values('9030'); mysql> insert into DemoTable values('3902'); mysql> insert into DemoTable values('9083'); mysql> insert into DemoTable values('9089');
使用select语句显示表中的所有记录-
mysql> select *from DemoTable;
输出结果
+---------+ | 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。在这里,我们仅处理ZipCode从90开始的记录-
mysql> update DemoTable set ZipCode=INSERT(ZipCode, 1, 2, 'Country-AUS-') -> where ZipCode LIKE '90%'; Rows matched: 3 Changed: 3 Warnings: 0
让我们再次检查表记录-
mysql> select *from DemoTable;
输出结果
+----------------+ | ZipCode | +----------------+ | Country-AUS-30 | | 3902 | | Country-AUS-83 | | Country-AUS-89 | +----------------+ 4 rows in set (0.00 sec)