Question

I have an oracle time interval in a select statement like this:

SELECT ...
    CASE WHEN date1 - date2 > 0 
    THEN 'No'
    ELSE 'YES'
END 

This fails with an invalid data type. So I tried this, and it still fails.

SELECT ...
    CASE WHEN date1 - date2 > (sysdate - sysdate) 
    THEN 'No'
    ELSE 'YES'
END 

Is there any way to compare interval types?

Answer 1

I discovered when I added day to second it turned the second value into an interval and it worked. Thanks all for the ideas.

SELECT ...
    CASE WHEN date1 - date2 > (sysdate - sysdate) day to second
    THEN 'No'
    ELSE 'YES'
END