Order of LIKE clause in query when wanting to use multiple terms

问题

I have the query

SELECT * FROM images WHERE tags LIKE '%example%hello%'

I would like the database to select rows which have 'example' and 'hello' in the 'tags' column in any order, as in:

A row with 'hello, test, example', also 'example, hello, test' or any other variation of this order. Is this possible, even without using LIKE? The rows must all contain everything specified with LIKE.

EDIT: Such as, when I provide 'example' and 'hello' in the query, rows returned must contain both 'example' and 'hello'.

回答1:

You could try a simple OR for a quick solution:

SELECT * FROM images WHERE tags LIKE '%example%' OR tags LIKE '%hello%'

EDIT

To address your edit, you can use AND instead:

SELECT * FROM images WHERE tags LIKE '%example%' AND tags LIKE '%hello%'

回答2:

You could use FIND_IN_SET:

SELECT tags FROM images WHERE FIND_IN_SET('hello', tags) AND FIND_IN_SET('example', tags)

However, this requires that tags not have spaces after the comma (you will have to do replace on tags or more boolean checks in that case). This might be faster than LIKE. I'm not sure.

来源：https://stackoverflow.com/questions/7910362/order-of-like-clause-in-query-when-wanting-to-use-multiple-terms