Thanks, that clears it up. Matt.
_-'-_ -|- -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Jurjen Oskam Sent: Wednesday, February 23, 2005 12:23 PM To: [email protected] Subject: Re: select query misbehaving? On Wed, Feb 23, 2005 at 12:02:32PM -0000, Warren, Matthew (Retail) wrote: > Ok, I can do that. But, surely NULL != 'VAULT' is not like '%VAULT%' ? SQL has three valued logic: TRUE, FALSE and UNKNOWN (or NULL): tsm: SERVER1>select count(*) from volumes 108 tsm: SERVER1>select count(*) from volumes where pct_reclaim = 0.0 36 tsm: SERVER1>select count(*) from volumes where pct_reclaim != 0.0 53 tsm: SERVER1>select count(*) from volumes where pct_reclaim is null 19 tsm: SERVER1>select count(*) from volumes where pct_reclaim is not null 90 -- Jurjen Oskam "E-mail has just erupted like a weed, and instead of considering what to say when they write, people now just let thoughts drool out onto the screen." - R. Craig Hogan ___________________________ Disclaimer Notice __________________________ This message and any attachments are confidential and should only be read by those to whom they are addressed. If you are not the intended recipient, please contact us, delete the message from your computer and destroy any copies. Any distribution or copying without our prior permission is prohibited. Internet communications are not always secure and therefore Powergen Retail Limited does not accept legal responsibility for this message. The recipient is responsible for verifying its authenticity before acting on the contents. Any views or opinions presented are solely those of the author and do not necessarily represent those of Powergen Retail Limited. Registered addresses: Powergen Retail Limited, Westwood Way, Westwood Business Park, Coventry, CV4 8LG. Registered in England and Wales No: 3407430 Telephone +44 (0) 2476 42 4000 Fax +44 (0) 2476 42 5432
