RE: Consistent Null Handling
- From: "Lex de Haan" <lex.de.haan@xxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 3 Sep 2004 11:12:41 +0200
Ian,
it better be true for all those implementations --
because this is what the ANSI/ISO standard is telling us to do ;-)
please, invite me to teach my favorite one-day seminar on this topic ...
Kind regards,
Lex.
-------------------------------
visit http://www.naturaljoin.nl
-------------------------------
skype me <callto://lexdehaan>
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of MacGregor, Ian A.
Sent: Thursday, September 02, 2004 19:43
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 - //freelists.org/archives/oracle-l/09-2004
-- Binary/unsupported file stripped by Ecartis --
-- Type: text/x-vcard
-- File: Lex de Haan.vcf
---
To unsubscribe - mailto:oracle-l-request@xxxxxxxxxxxxx&subject=unsubscribe
To read recent messages - //freelists.org/archives/oracle-l/09-2004
Other related posts:
