具有多个搜索字符串的 MySQL find_in_set
我发现 find_in_set 只搜索单个字符串:-
I find that find_in_set only search by a single string :-
find_in_set('a', 'a,b,c,d')
在上面的例子中，'a' 是唯一用于搜索的字符串.
In the above example, 'a' is the only string used for search.
有什么方法可以使用 find_in_set 类型的功能并按多个字符串进行搜索，例如:-
Is there any way to use find_in_set kind of functionality and search by multiple strings, like :-
find_in_set('a,b,c', 'a,b,c,d')
在上面的例子中，我想通过三个字符串 'a,b,c' 进行搜索.
In the above example, I want to search by three strings 'a,b,c'.
我看到的一种方法是使用 OR
One way I see is using OR
find_in_set('a', 'a,b,c,d') OR find_in_set('b', 'a,b,c,d') OR find_in_set('b', 'a,b,c,d')
除了这个还有别的办法吗?
Is there any other way than this?
推荐答案
没有原生函数可以做到这一点，但是您可以使用以下技巧来实现您的目标
there is no native function to do it, but you can achieve your aim using following trick
WHERE CONCAT(",", `setcolumn`, ",") REGEXP ",(val1|val2|val3),"
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