Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Does auto inc field work with cursor adapter?
Message
 
 
To
04/02/2011 22:23:59
General information
Forum:
Visual FoxPro
Category:
Other
Environment versions
Visual FoxPro:
VFP 9 SP1
Miscellaneous
Thread ID:
01498851
Message ID:
01498867
Views:
52
>>>>Hi,
>>>>
>>>>I have a couple of questions on using Auto Inc field. I have never used them before and consider adding/using for a table that currently has no PK field. So I want to add
>>>>
>>>>1. Will a table with an Auto Inc field work with a cursor adapter? That is, can I add/edit/delete records in this table via cursor adapter object?
>>>
>>>Yes. You have to get the "real" PK value after insert operation if the newly created CA record needs it elsewhere (as a FK in parent-child relations).
>>>>
>>>>2. Do you find that adding an Auto Inc field make the table more susceptible to corruption (than table without such field)?
>>>
>>>corruption no. But if the seed value is/turns somehow wrong, you have to take action, as the table might be insert-blocked.
>>>Also slightly more work if appending is part of the tasks.
>>
>>Thank you very much for your answers. The last part of what you said, "if something goes wrong" concerns me. How do you rectify the situation. I guess I will need to think of a way to simulate the problem and then create an approach of fixing it.
>
>You reset/reseed it to a value > max(autoincvalue)

Thank you. I will see VFP Help on how to reset/reseed the value. I appeciate your help.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham
Previous
Reply
Map
View

Click here to load this message in the networking platform