Thread: Re: Data in a field must be in capitals

Re: Data in a field must be in capitals

From
missive@frontiernet.net (Lee Harr)
Date:
> I am using PostgreSQL7.1.3.
>
> I need to ensure that a project code is all in capitals (upper case) when it
> is stored in the database.
>
> To do this, should I use a trigger on an insert with a stored procedure, or
> a check constraint?
>
> I was planning on automatically converting lower case to upper case, rather
> than rejecting an invalid entry.
>

I was reading some of the comments on the PostgreSQL release story
on Slashdot and someone mentioned using functions for all regular
access to the database. It is an interesting idea.

Basically, the only access you give to insert in to the table
would be through a function, and you make sure your function
uppercases that particular field. Of course if people have access
to performing raw inserts then you would probably want a
trigger to verify the integrity of inserted data.


Re: Data in a field must be in capitals

From
Darren Ferguson
Date:
Ok i dont know if t was ansered but the first part

Use  atrigger on the table and just yse the inbuilt UPPER command that
Postgres supports and that will aways convert that field to upper case

Hope this helps

Darren

Darren Ferguson

On Fri, 8 Feb 2002, Lee Harr wrote:

> > I am using PostgreSQL7.1.3.
> >
> > I need to ensure that a project code is all in capitals (upper case) when it
> > is stored in the database.
> >
> > To do this, should I use a trigger on an insert with a stored procedure, or
> > a check constraint?
> >
> > I was planning on automatically converting lower case to upper case, rather
> > than rejecting an invalid entry.
> >
>
> I was reading some of the comments on the PostgreSQL release story
> on Slashdot and someone mentioned using functions for all regular
> access to the database. It is an interesting idea.
>
> Basically, the only access you give to insert in to the table
> would be through a function, and you make sure your function
> uppercases that particular field. Of course if people have access
> to performing raw inserts then you would probably want a
> trigger to verify the integrity of inserted data.
>
>
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