MySQL 如何使用不同域遮盖用户电子邮件地址

首先让我们创建一个表 –

mysql> create table DemoTable1345
   -> (
   -> UserEmailAddress text
   -> );
Query OK, 0 rows affected (0.42 sec)

使用insert命令在表中插入一些记录。在这里我们插入了电子邮件地址 –

mysql> insert into DemoTable1345 values('Carol123@gmail.com');
Query OK, 1 row affected (0.09 sec)
mysql> insert into DemoTable1345 values('987Sam@gmail.com');
Query OK, 1 row affected (0.09 sec)
mysql> insert into DemoTable1345 values('David_Miller@gmail.com');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable1345 values('Bob@gmail.com');
Query OK, 1 row affected (0.14 sec)

使用select语句显示表中的所有记录 –

mysql> select * from DemoTable1345;

这将产生以下输出 –

+------------------------+
| UserEmailAddress       |
+------------------------+
| Carol123@gmail.com     |
| 987Sam@gmail.com       |
| David_Miller@gmail.com |
| Bob@gmail.com          |
+------------------------+
4 rows in set (0.00 sec)

以下是在MySQL中使用不同域遮盖用户电子邮件地址的查询 –

mysql> update DemoTable1345 set UserEmailAddress=replace(UserEmailAddress, '@gmail.com','@amz.com');
Query OK, 4 rows affected (0.18 sec)
Rows matched: 4 Changed: 4 Warnings: 0

让我们再次检查表记录 –

mysql> select * from DemoTable1345;

这将产生以下输出 –

+----------------------+
| UserEmailAddress     |
+----------------------+
| Carol123@amz.com     |
| 987Sam@amz.com       |
| David_Miller@amz.com |
| Bob@amz.com          |
+----------------------+
4 rows in set (0.00 sec)

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