核心语句：
UPDATE `cdb_pms` SET `subject` = REPLACE(`subject`, 'Welcome to', '欢迎光临')
mysql替换字段里数据内容部分字符串
mysql替换表的字段里面内容，如例子：
mysql> select host,user from user where user='testuser';
+-----------------------+----------+
| host | user |
+-----------------------+----------+
| localhost.localdomain | testuser |
+-----------------------+----------+
update字段host的内容，把"main"改成"slave",用REPLACE
mysql> update user set host=REPLACE(host,'main','slave') where user='testuser';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> select host,user from user where user='testuser';
+------------------------+----------+
| host | user |
+------------------------+----------+
| localhost.localdoslave | testuser |
+------------------------+----------+
由查询结果到，数据已经更新成功
因为服务器上安了一流拦截系统,所以dede的交替功能不好使.只能手动在phpadmin中SQL:
updatedede_addonarticlesetbody=replace(body,'大法','方法')
mysql替换表的字段里面内容，如例子：
mysql> select id,type from items limit 10;
+--------+--------+
| id | type |
+--------+--------+
| 0001 | 780000 |
| 0002 | 780000 |
| 0003 | 780000 |
| 0004 | 780000 |
| 0005 | 780000 |
| 150419 | 780000 |
| 150420 | 780000 |
| 150421 | 780000 |
| 150422 | 780000 |
| 150423 | 780000 |
+--------+--------+
把type字段中的“78”改成“79” 用replace函数
sql如下：
mysql> update items set type=replace(type,'79','78');
Query OK, 17536 rows affected (0.72 sec)
Rows matched: 17536 Changed: 17536 Warnings: 0
再查询：
mysql> select id,type from items limit 10;
+--------+--------+
| id | type |
+--------+--------+
| 0001 | 790000 |
| 0002 | 790000 |
| 0003 | 790000 |
| 0004 | 790000 |
| 0005 | 790000 |
| 150419 | 790000 |
| 150420 | 790000 |
| 150421 | 790000 |
| 150422 | 790000 |
| 150423 | 790000 |
+--------+--------+
10 rows in set (0.00 sec)
由查询结果到，数据已经更新成功
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