Hello;
The primary key is based on a person identifier, serial number, and
the date the item was assigned to a person. I could generate a
primary key that is a sequential number but hen that breaks
referential integrity with other tables.
Don
On Jan 5, 2008, at 5:20 PM, Miguel Arroz wrote:
Hi!
A date as a primary key? Hummmmm.... never tried that, but my "not
good idea" buzzer is buzzing! :)
I suppose you could override something in the framework to generate
your own PKs (I know this is described somewhere, maybe in the Apple
Enterprise Objects guide), but I don't think it's legal to set it
manually. You shouldn't even have the diamond turned on on that
attribute.
Is there any serious reason to use date as a PK? Why can't you use
a normal PK? If you want to be sure that you don't have to equal
dates, just set a unique constraint on the database.
Yours
Miguel Arroz
On 2008/01/05, at 22:16, Don Lindsay wrote:
Hello;
One of the primary keys is a date field, how would the system set
this date?
don
On Jan 5, 2008, at 5:11 PM, Miguel Arroz wrote:
Hi!
On 2008/01/05, at 22:05, Don Lindsay wrote:
I am using an oracle database. Anytime I attempt to insert a
record in any table I get the following error:
[EMAIL PROTECTED] failed to provide
new primary keys for entity 'WeaponAssignment'
I have set all of the primary key attributes before attempting to
insert the object. So I am kind of confused why I keep receiving
this message.
I don't understand what you mean by this. You have set the primary
keys manually on the object? If you did, than that's the problem,
that's the job of EOF, not yours. :)
Yours
Miguel Arroz
Miguel Arroz
http://www.terminalapp.net
http://www.ipragma.com
Miguel Arroz
http://www.terminalapp.net
http://www.ipragma.com
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com
This email sent to [EMAIL PROTECTED]
