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Problems with Trigger
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De
08/09/2004 11:10:45
 
 
À
08/09/2004 10:54:43
Cetin Basoz
Engineerica Inc.
Izmir, Turquie
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00940269
Message ID:
00940290
Vues:
18
Thank You Cetin, I'll try to follow your indication, after all it's what i usually do when I use the selct command, I was thinking about the reason why I did not use that command in my CreateCursor Procedure... maybe the previous version of VFP didn'tcreate empty cursor using the select command ?
Thank you again
Alessio

>Alessio,
>I see. You might add columns on the fly though. ie:
>
>select *, ;
>  space(10) as myAddedStringColumn, ;
>  {/:} as myAddedDatetimeColumn ;
>  from myTable ;
>  where .f. ;
> into cursor crsMyCursor readwrite
>
>Array processing is generally faster but with these types of things it might not worth to test which one is really faster. However ALTER TABLE would have a problem. If you have longname field or add one with longname than next ... ADD COLUMN ... would error.
>I suggest 'Select ... where .F. ...'.
>Cetin
>
>
>>I've chosen (I hope it's the right english verb) the afield function because
>>I pass some parameters to my routine to add some columns to the cursor.
>>Do you think is faster to exwcute an alter table after the select command or to add row to the afield Array ?
>>
>>
>>>>I'm trying to work with triggers, I call a procedure when insert, update or delete records. It seems to work fine but.... if I create a cursor as an image of a triggered table the trigger starts working even on this cursor and that is not what i want to :-).
>>>>I create the trigger with create cursor "cursorname" from array "arrayname" where the array is generated by the Afield fuction.
>>>>
>>>>Thank you
>>>>Alessio
>>>
>>>Alessio,
>>>1) You might set cols 13..15 to '' to avoid triggers.
>>>2) Instead of afields() and create ... from array you might select into cursor. ie:
>>>select * from myTable where .F. into cursor crsMyCursor readwrite
>>>Cetin
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