Subject | RE: [firebird-support] How to use a an integer parameter to fetch parameter = "N" or all rows. |
---|---|
Author | Sasha |
Post date | 2007-05-30T07:46:22Z |
>select * from Item where
> How can I easily query an integer column to get the rows matching
> an integer or also allow all rows to be fetched? EG:
>
> Item.Project (integer)
> Item.Location (integer)
>
> (Case 1)
> Select * from Item where
> Project = :ProjectID and Location = LocationID
>
> (Case 2)
> Select * from Item where
> Project = :ProjectID and Location = all locations
>
Project = :ProjectId and (Location = :LocationID or :all_locations = 1)
case 1: set :all_location to 0
case 2: set :all_location to 1
Or, you can dynamically build a query and skip " and Location = ..."
Sasha