Re: Transactional DDL

Harpreet Dhaliwal wrote:
> And this feature i.e. transactional DDL is not there in other major
> RDBMS like sql server, oracle etc?
>
> thanks
> ~Harpreet
>
<...snipped earlier postings...>

It surprised me when I saw Oracle's behavior. Informix supports DDL
within transactions quite happily:

create table foo22 (id int,myvalue varchar);
create table foo23 (id int);
begin;
alter table foo22 drop (myvalue);
alter table foo23 add (mynewvalue varchar);
rollback;

INFO - foo22:   Columns  Indexes  Privileges  References  Status  ...
Display column names and data types for a table.
----------------------- billing@arches_ip ------ Press CTRL-W for Help
--------
Column name          Type                                    Nulls
id                   integer                                 yes
myvalue              varchar(1,1)                            yes

AND
INFO - foo23:   Columns  Indexes  Privileges  References  Status  ...
Display column names and data types for a table.
----------------------- billing@arches_ip ------ Press CTRL-W for Help
--------
Column name          Type                                    Nulls
id                   integer                                 yes

QED.

It's a strong point in PostgreSQL's favor that it behaves in what I
regard as a sane manner. That Oracle stuff makes me shudder -- it's unclean.

Greg Williamson
Senior DBA
GlobeXplorer LLC, a DigitalGlobe company

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