Finding the lowest value in a table greater than a certain value

Question

Say I have the following data

Name      Value
===============
Small        10
Medium      100
Large      1000

Imagine that these represent the

Answer 1

SELECT  *
FROM    (
        SELECT  *
        FROM    (
                SELECT  *
                FROM    mytable
                WHERE   value > 10000
                ORDER BY
                        value
                )
        UNION ALL
        SELECT  *
        FROM    (
                SELECT  *
                FROM    mytable
                ORDER BY
                        value DESC
                )
        )
WHERE   rownum = 1

This will both efficiently use an index on mytable(value) and COUNT(STOPKEY).

See this article in my blog for performance details:

• Selecting lowest value