Oracle 10g - optimize WHERE IS NOT NULL

Question

We have Oracle 10g and we need to query 1 table (no joins) and filter out rows where 1 of the columns is null. When we do this - WHERE OurColumn IS NOT NULL - we get a full

Answer 1

Oracle database don't index null values at all in regular (b-tree) indexes, so it can't use it nor you can't force oracle database to use it.

BR