Subject Re: [firebird-support] Data of multiple years and opening stocks & balances
Author Venus Software Operations
Thanks Milan for the further explanation. I was hoping that Views were
static of sorts, run it once and it would give immediate results unless
the view parameters were changed or maybe the data it queried on has

Apart from the advantages you mentioned over SP it looks to me that it's
dataset is regenerated every time it is called (even with the same view
parameters) just like calling the SP would. Please correct me if I
understood this wrong.

Thanks and regards

On 07/03/2011 06:47, Milan Babuskov wrote:
> Venus Software Operations wrote:
> > On 04/03/2011 03:07, Milan Babuskov wrote:
> >> You can define a VIEW (or a stored procedure) that calculates the
> values
> >> dynamically. One day, if data gets to big, you can rename the
> >> view/procedure, create table using the same name and fill it in
> >> initially using This way you don't have to change the
> >> application code. I had something like that in one of my databases,
> >> here's an example:
> >>
> > Thanks a lot Milan for this idea.
> >
> > I am happy to go the View way too, if you can tell me how a view works,
> > does it calculate once and update itself occasionally if the data it is
> > dependent on changes. Or is it as same as running a SP or doing SQL-PT
> > from the application, calculated everytime it is accessed, just more
> > convenient.
> It's similar to stored procedure.
> Main advantage of view is that is can use indexed on underlying tables
> while a stored procedure cannot. In the example procedure I gave in
> previous message, if you wish to query only WHERE SKU = 1111, a
> procedure would not use index on underlying tables unless you make SKU
> an input parameter and specify SKU inside the procedure. If you wish to
> make arbitrary WHERE clauses, then using VIEW is a better idea.
> Main advantage of procedure is that you can program it to do something
> else then just returning rows from a table.
> --
> Milan Babuskov
> ==================================
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Thanking you.

Yours Faithfully,
For Venus Software Operations
Bhavbhuti Nathwani
Softwares for Indian Businesses at:


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