mysql检查给定的字符串是否在没有FIND_IN_SET的逗号分隔列表中

Question

SELECT * FROM TABLE_NAME WHERE 'string' in ('string1','string2','string3')

Its not given correct result find_in_set only given a exact result. If any way to get correct result without using find_in_set

Answer 1

SELECT * FROM TABLE_NAME WHERE 'string' in ('string1','string2','string3');

In the above query, string is supposed to be a field (column) so, if you were to have this query work, it would be without single quotes ' , like this:

SELECT * FROM TABLE_NAME WHERE string IN ('string1','string2','string3');

This will return all rows where the field string is exactly string1 or string2 or string3 .

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Now, if you want to query the field string for values like "string", not exactly matching, then you use the LIKE operator :

SELECT * FROM TABLE_NAME WHERE string LIKE '%string%';

In the above query, all 3 records containing string1 , string2 and string3 will be returned.