Question

I have dates in this format in my database “01-APR-12” and the column is a DATE type.

My SQL statement looks like this:

SELECT DISTINCT c.customerno, c.lname, c.fname
FROM customer c, sales s
WHERE c.customerno = s.customerno AND s.salestype = 1 
AND (s.salesdate BETWEEN '01-APR-12' AND '31-APR-12');

When I try to do it that way, I get this error — ORA-01839: date not valid for month specified.

Can I even use the BETWEEN keyword with how the date is setup in the database?

If not, is there another way I can get the output of data that is in that date range without having to fix the data in the database?

Thanks!

Answer 1

April has 30 days not 31.

Change

SELECT DISTINCT c.customerno, c.lname, c.fname
FROM customer c, sales s
WHERE c.customerno = s.customerno AND s.salestype = 1 
AND (s.salesdate BETWEEN '01-APR-12' AND '31-APR-12');

to

SELECT DISTINCT c.customerno, c.lname, c.fname
FROM customer c, sales s
WHERE c.customerno = s.customerno AND s.salestype = 1 
AND (s.salesdate BETWEEN '01-APR-12' AND '30-APR-12');

and you should be good to go.