Question

I need to return all db-rows which match the following criteria:

SELECT col FROM tbl WHERE ALL 'reversed-sub-strings' of 'reversed-string' = col  

Example:

some-string = 123456

should return rows that equal

6
56
456
3456
23456
123456

Of course we cannot use “WHERE col LIKE ‘%some-string’ ” because it would just return one row.
Also I am unwilling to create all the strings before sending them to the db.

I am using MySQL 5, maybe some Regex would help?

Answer 1

If I understand your requirement correctly, this should do what you want;

SELECT col FROM tbl WHERE INSTR(REVERSE('123456'), REVERSE(col))=1;