Re: VIEW or Stored Proc - Is this even possible?

Hello,

Thanks for your suggestion I will look into this further.

The reason this issue exists is to do with address details. What we have is
an address table based upon the PAF address structure. IE house number,
house name, street, locality etc. The software that we are using to perform
a mail merge will not remove blank lines from the address so we can end up
with an address label looking as:

My House

Main Street

Any Town
County

My soultion requires the database to change the position of fields to remove
blank elements from the address list. I would then see on the address label:

My House
Main Street
Any Town
County
<null>
<null>

This would be far more preferable.

Regards,

Stephen.

-----Original Message-----
From: Richard Huxton [mailto:dev(at)archonet(dot)com]
Sent: 19 February 2003 18:11
To: Stephen(dot)Thompson(at)bmwfin(dot)com; pgsql-sql(at)postgresql(dot)org
Subject: Re: [SQL] VIEW or Stored Proc - Is this even possible?

On Wednesday 19 Feb 2003 12:56 pm, Stephen(dot)Thompson(at)bmwfin(dot)com wrote:
> I have a table with fields A, B, C, D and E. Any of these can contain
> nulls. What I need to do is to be able to perform a select that removes
> nulls.
>
> if A = 'A'
> B = NULL
> C = NULL
> D = 'D'
> E = 'E'
>
> what I would like returned is
>
> A, D, E, NULL, NULL.

You could do this in 7.3 with table functions (there's a good article on
techdocs.postgresql.org about them).

Don't suppose you could give more of an explanation - it sounds like an odd
thing to do.

--
Richard Huxton

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