RE: Consistent Null Handling

Ian,

This is true for 817 & 9204.  I could have sworn that you needed to do the
following to get it to work:

Select sum(nvl(col1,0)) from table

Maybe in a prior release (like 6.x) the above was required.

Tom Mercadante
Oracle Certified Professional


-----Original Message-----
From: MacGregor, Ian A. [mailto:ian@xxxxxxxxxxxxxxxxx] 
Sent: Thursday, September 02, 2004 2:43 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Consistent Null Handling


One of the posts on "Cure for Madness" brought up consistent null = handling
which Oracle does not do.  For instance, "Select  Column1 + Column2 from
TableA;" returns null if either or both = columns are null.  However "Select
sum(Column1) from table A" will = return a value if there are non-null
values in the column.  Is this true = for all SQL versions? =20

Ian MacGregor
Stanford Linear Accelerato Center
ian@xxxxxxxxxxxxxxxxx
---
To unsubscribe - mailto:oracle-l-request@xxxxxxxxxxxxx&subject=unsubscribe 
To read recent messages - http://freelists.org/archives/oracle-l/09-2004
---
To unsubscribe - mailto:oracle-l-request@xxxxxxxxxxxxx&subject=unsubscribe 
To read recent messages - http://freelists.org/archives/oracle-l/09-2004

Other related posts: