Last year I blogged about highlighting negative numbers in an APEX Report, the CSS only way.
At that time I gave two alternative approaches; by using JQuery or SQL, but it looks like I didn't do those posts yet, till somebody reminded me. This post is about using SQL to highlight something in a report.
Let's say we want to highlight negative numbers in a report (as in the previous post):
when amount < 0
end as class
order by id