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mysql-Mysql向表中某个字段添加有规律字符串怎么写SQL语句？例如（1P,2P,3P）

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Release： 2016-06-06 09:41:44
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字符串mysql

图片说明
如图所示
表 b 有三个字段aid,partname,partid,我希望partid字段可以根据partname字段的值添加有规律的字符串。
例如 partname字段值为PART 1则partid字段添加值 1P，partname字段值为PART 2则partid字段添加值 2P，
partname的值除了上述格式还有TV 01，TV 02,特征都是字符串有（无）空格加数字，
还有种就是数字夹在字符串中间的，第1話，第2話，第11話.最后一种最简单的是纯数字，1,2,3
反正就是用语句把这三种特征的字段其中的数字提取出来，在partid字段添加1P,2P,
3P的值。
请问各位数据库大神这样应该怎么写SQL语句？

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