Question

In mysql database table I have integer field, what i want to find missing minimum value of the sequence.

Please Help.

1,2,3,5,6,8,....
missing is 4

Answer 1

You can do something like this:

SELECT  val + 1
FROM    mytable t1
WHERE   NOT EXISTS
        (SELECT NULL FROM mytable t2 WHERE t2.val = t1.val + 1)
ORDER BY val
LIMIT 1