Create table script without drop

Hello all!
I'm currently working on a project where we have several customers with
the same application. The database is constantly being changed and it's
hard to keep track of all the changes from all the versions in the
customers' systems.
Usually I create the changes script every time I alter any of the tables
but there is always a risk of loosing them. I wonder if there is anyway
of creating a script that updates all the tables instead of dropping and
creating them all, so our customers won't loose the database records.
Thanks in advance,
Hugo MadureiraHugo,
You can use the ALTER TABLE Statement instead of DROP TABLE & CREATE
TABLE.
eg.
Alter Table MyTable
Add MyColumn varchar(10)
HTH
Barry|||You can get rid of a lot of headaches by using SQL Compare.
www.red-gate.com
"Hugo Madureira" <hugomadureira@.hotmail.com> wrote in message
news:%232216JpJGHA.3696@.TK2MSFTNGP15.phx.gbl...
> Hello all!
> I'm currently working on a project where we have several customers with
> the same application. The database is constantly being changed and it's
> hard to keep track of all the changes from all the versions in the
> customers' systems.
> Usually I create the changes script every time I alter any of the tables
> but there is always a risk of loosing them. I wonder if there is anyway of
> creating a script that updates all the tables instead of dropping and
> creating them all, so our customers won't loose the database records.
>
> Thanks in advance,
> Hugo Madureira|||Of course, this gets more complex than just adding columns. Such as
adding/removing columns with check constraints, foreign key constraints,
primary key constraints, unique constraints, computed columns, changing
datatypes/scale/precision, etc. Not all table changes are adding columns.
"Barry" <barry.oconnor@.singers.co.im> wrote in message
news:1138731694.928227.324210@.z14g2000cwz.googlegroups.com...
> Hugo,
> You can use the ALTER TABLE Statement instead of DROP TABLE & CREATE
> TABLE.
> eg.
> Alter Table MyTable
> Add MyColumn varchar(10)
>
> HTH
> Barry
>|||Ahh now I understand what he *actually* wanted... oops!
Barry|||I was looking for a possible way of doing that with Enterprise Manager
manager, in a way that it could be done automatically.
When I use Enterprise Manager to create a table script, it drops the
table and re-creates it. That causes data loss in the database.
If there is no way of doing that, is it possible to easily edit the
script generated by Enterprise Manager to do that?
Barry wrote:
> Hugo,
> You can use the ALTER TABLE Statement instead of DROP TABLE & CREATE
> TABLE.
> eg.
> Alter Table MyTable
> Add MyColumn varchar(10)
>
> HTH
> Barry
>