forUpdate flag

[Ruslan Zasukhin]

On 6/29/06 11:02 AM, "Florian Bogeschdorfer" <fb at memedia.de> wrote:

>> Yes, but why do I want to have NULL fields? Why not just "" or 0 etc.? My
>> problem not getting this maybe have to do with me coming from VB were as
>> an
> 
> Because NULL is different to "" and 0, "" and 0 are still values. For
> example if you want to erase a unique field - "" and 0 are impossible
> because you could not erase more than one field. But if you set it to NULL
> it has no value and you can set several fields to NULL.

Right.

Joakim, this is standard DB issue.
Try search inet to get more info about NULLs.

I think exists tons pages about this


-- 
Best regards,

Ruslan Zasukhin
VP Engineering and New Technology
Paradigma Software, Inc

Valentina - Joining Worlds of Information
http://www.paradigmasoft.com

[I feel the need: the need for speed]