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关于标签的一个疑问

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Jun 23, 2016 pm 02:02 PM

每个文章都有几个标签，当然一般都是存在一个字段里面

在查询标签是否存在的时候，我遇到问题了。

例如字段 Tags 里面有两个文字的标签如下

唯美图片,flash,js特效,php代码
唯美意境图片,asp代码,html,csdn论坛

这时候，例如我想增加一个 csdn 的标签。查找字段的时候它是存在的，而事实它跟标签 csdn论坛这个标签不一样

那么我们的 sql应该怎么判断，求指点。

回复讨论(解决方案)

你应该给出 csdn 标签的存放形式

1）是否是将你的标签serialize成数组，然后把你提交的值和数组中的每个值做对比，当==的时候才一样。

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