检查特定行中是否存在值

Question

I have this table

Num |  id1  |  id2  |  id3
---------------------------
1   |  abc  |  sjs  |  hss    
2   |  abc  |  sjs  |  hss    
3   |  sjs  |  hss  |  uaj     
4   |  ahs  |  shh  |  ajs    
5   |  dks  |  sns  |  jaj


$user = "3";
$value = "hss";

I want to check if VALUE is present in row of USER or not (only I want to check in row which is in front of USER value not other rows or columns) How can I check?

Answer 1

A simple query to do what you need would be;

SELECT *
FROM mytable
WHERE 'hss' IN (id1, id2, id3)
  AND num <= 3;

An SQLfiddle to test with .