How to compare two DATE values based only on date part in Oracle?

Question

I am trying to get counts for last 30 days with the following query -

SELECT date_occured, COUNT(*) FROM problem
WHERE date_occured >= (CURRENT_DATE - 30)
GRO         


        

Answer 1

Here is the index friendly approach.

you don't need to use functions on columns if you use Oracle's Native MONTHS_BETWEEN function.

It returns difference in number of months. Days are also given as difference but on the precision side that is why I preferred to use BETWEEN clause

WHERE MONTHS_BETWEEN(date_occured, CURRENT_DATE - 30) BETWEEN 0 AND 1