RE: SQL Developer - view DDL Formatting
Date: Wed, 26 Apr 2017 17:30:31 +0100
Message-ID: <CAOuMUT7L0ZBFQndyBhjF8DvdMY1DUEMecKnYt8VJwwHXDn3MTA_at_mail.gmail.com>
Thanks Michael,
Yes you are 100% right. And I think Mark was probably making the same point. The attribute list must stay!
Regards,
Fergal
On 26 Apr 2017 11:35, "Tefft, Michael J" <Michael.J.Tefft_at_snapon.com> wrote:
> Ø I just dont see any good reason to use the attribute list.
>
>
>
> As a personal style or standard, you might choose not to override column
> names in the attribute list – but if you are extracting DDL for an existing
> view then you are at the mercy of whoever wrote that view.
>
>
>
> i.e. if the original author wrote
>
> CREATE OR REPLACE VIEW V (DOG) as SELECT DUMMY AS CAT FROM DUAL;
>
>
>
> Then you definitely need the column specification to correctly re-create
> the view.
>
>
>
> Mike Tefft
>
>
>
> *From:* oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_
> freelists.org] *On Behalf Of *Fergal Taheny
> *Sent:* Tuesday, April 25, 2017 4:47 PM
> *To:* Powell, Mark <mark.powell2_at_dxc.com>
> *Cc:* Michael D O'Shea/Woodward Informatics Ltd <woodwardinformatics_at_
> strychnine.co.uk>; jeff.d.smith_at_oracle.com; oracle-l_at_freelists.org
> *Subject:* Re: SQL Developer - view DDL Formatting
>
>
>
> Hi Mark
>
> > I am of the opinion that views should always have an attribute list
> since I have encountered views where the view column name does not match up
> to the select list column names.
>
> I have a different opinion on this. If I want the column names to differ I
> use an alias in the select statement. The problem I see with the attribute
> list is that it can get out of sync with the attributes in the select list.
> I just dont see any good reason to use the attribute list.
>
> >Nor should a new column added to a table automatically appear in any
> views defined on the table. The sensitivity of the column data has to be
> considered in relation to the purpose and audience of each view that
> references the table.
>
> Agreed. I didn't say anything about automatically adding columns to views.
>
> > When the view is updated you can easily generate the view code from the
> RDBMS Dictionary or using DBMS_METADATA.
>
> Yes thanks but I was just trying to figure out if SQL Developer Database
> export could do this for me.
>
> Regards,
> Fergal
>
-- http://www.freelists.org/webpage/oracle-lReceived on Wed Apr 26 2017 - 18:30:31 CEST