DATEDIFF function in Oracle

Question

I need to use Oracle but DATEDIFF function doesn\'t work in Oracle DB.

How to write the following code in Oracle? I saw some examples using INTERVAL or TRUNC.

Answer 1

Just subtract the two dates:

select date '2000-01-02' - date '2000-01-01' as dateDiff
from dual;

The result will be the difference in days.

More details are in the manual:
https://docs.oracle.com/cd/E11882_01/server.112/e41084/sql_elements001.htm#i48042