| Subject | Re: [firebird-support] Is it possible to suspend a generator? |
|---|---|
| Author | Doug Chamberlin |
| Post date | 2012-03-13T12:24:09Z |
On 3/13/12 8:17 AM, grip_2ls wrote:
using triggers that assign the ID values. But those triggers are written
to only do so if the primary key field is still NULL when the trigger
fires. That way the application can assign primary keys when it knows
the values it wants to use and the trigger does it when the application
does not want to bother with this detail. I suggest you modify your
triggers to match this strategy.
Doug C.
> I need to insert some data with fixed IDs. The table that I am inserting into already has data and a generator for the IDs. The new data is below the value of the generator and the IDs do not already exist. Can I suspend the generator while I insert these new rows and if so how?Many implementations that use generators for creating primary keys do so
using triggers that assign the ID values. But those triggers are written
to only do so if the primary key field is still NULL when the trigger
fires. That way the application can assign primary keys when it knows
the values it wants to use and the trigger does it when the application
does not want to bother with this detail. I suggest you modify your
triggers to match this strategy.
Doug C.