Question

I got the table, that containing the field filled digits (1-2 symbol each) like this (1|5|18|44|98|22), also field can contain only one digit (without divider |)
How can I search in this field certain digits?
For example – i need to select the rows, contains only 5. Or only 18 and 44?

Answer 1

You can add pipes to the start and end of the field like this while querying.

SELECT * 
FROM YOUR TABLE
WHERE INSTR( CONCAT('|', field, '|'), '|1|' ) >0

will return your row.

SELECT * 
FROM YOUR TABLE
WHERE INSTR( CONCAT('|', field, '|'), '|31|' ) >0

will not find and no rows will return.

SELECT * 
FROM YOUR TABLE
WHERE (INSTR(concat('|',field,'|'), '|18|') >0 and INSTR(concat('|',field,'|'), '|44|') >0)

will return if 18 and 44 both in your field.