MySQL 如何将+（加号）替换为空格

使用MySQL的REPLACE（）函数进行替换。首先创建一个表 –

mysql> create table DemoTable
(
   Number varchar(100)
);
Query OK, 0 rows affected (0.86 sec)

使用插入命令向表中插入一些记录 –

mysql> insert into DemoTable values('+916578675547');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable values('+918976676564');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable values('+919800087678');
Query OK, 1 row affected (0.12 sec)

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 –

+---------------+
| Number        |
+---------------+
| +916578675547 |
| +918976676564 |
| +919800087678 |
+---------------+
3 rows in set (0.00 sec)

以下是将“+”（加号）替换为空格的查询 –

mysql> update DemoTable set Number=replace(Number, '+', ' ');
Query OK, 3 rows affected (0.12 sec)
Rows matched: 3 Changed: 3 Warnings: 0

再次检查表记录 –

mysql> select *from DemoTable

这将产生以下输出 –

+---------------+
| Number        |
+---------------+
| 916578675547 |
| 918976676564 |
| 919800087678 |
+---------------+
3 rows in set (0.00 sec)

阅读更多：MySQL 教程