(It's the migration tool towards the bottom) :)

-----Original Message-----
From: symfony-users@googlegroups.com [mailto:symfony-us...@googlegroups.com]
On Behalf Of David Ashwood
Sent: 21 May 2009 12:12
To: symfony-users@googlegroups.com
Subject: [symfony-users] Re: Best Practices for Schema Changes


If you're using MySQL then there's a handy tool you can use that's pretty
decent for the job (and it's free :))

http://dev.mysql.com/downloads/gui-tools/5.0.html

-----Original Message-----
From: symfony-users@googlegroups.com [mailto:symfony-us...@googlegroups.com]
On Behalf Of James Cauwelier
Sent: 21 May 2009 12:03
To: symfony users
Subject: [symfony-users] Re: Best Practices for Schema Changes


With a small database this approach would work just fine.  From time
to time I have to change the schema on a database with tables as large
as 6 million rows.  Adding a row or an index is not someting that you
do on the live database.  It is just too risky and takes a long time.
Not so long ago I added a column which took me 1.5 days.

I am not a database expert, but maybe for larger databases replicating
the database, doing the changes on the replicated databases and then
switching the master would seem to be a better solution.  I don 't
know if it is possible to replicate between tables when the replicated
database has an extra column.  Maybe somebody can comment on that?


James

On May 20, 4:33 pm, slinky66 <tcasto...@comcast.net> wrote:
> Thank you for that. We do not use Doctrine however these steps worked
> for me just fine:
>
> 1) Made changes to existing database schema directly on the database.
> In this case, I added a new column to an existing table
>
> 2) symfony propel-build-schema xml
>
> 3) symfony propel-build-model
>
> 4) symfony cc
>
> These operations affected the base classes that need to take care of
> the new column that I added.
>
> On May 20, 10:20 am, Thibault Jouannic <tee...@gmail.com> wrote:
>
>
>
>
>
> > Hi,
>
> > If you use Doctrine, you can use migrations tools :
>
> >http://www.symfony-project.org/doctrine/1_2/en/07-Migrations
>
> > On 20 mai, 15:50, slinky66 <tcasto...@comcast.net> wrote:
>
> > > I have not been able to find a best practice approach in the Symfony
> > > docs for dealing with
> > > schema changes as it relates to rebuilding the data model. Can someone
> > > give me some guidance with this scenario?
>
> > > Site is up and running and a few weeks later, a new column needs to be
> > > added to the database.
>
> > > Can some one describe the steps?
>
> > > Thanks




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