Database Structure

Hi Everyone
I Have a Question Concerning DataBase Structure,
If i have a database that contains All Master Tables [user acount,user
detail &...] & i have to make another module for the same system that will
use the same master tables
Is it Preferred To Construct A New Database for this module & any any other
new module or make it all in the same database because they all shared the
same master Data'
Any Help Will Be AppreciatedHi
Size tends to be one of the drivers as to whether you should partition, if
it is a reasonable size then keep them together. If you used views to access
the data then it would be quite easy to partition it at a later point.
John
"Mariame" <mariame_waguih@.hotmail.com> wrote in message
news:uPlhibieFHA.2128@.TK2MSFTNGP14.phx.gbl...
> Hi Everyone
> I Have a Question Concerning DataBase Structure,
> If i have a database that contains All Master Tables [user acount,user
> detail &...] & i have to make another module for the same system that
> will use the same master tables
> Is it Preferred To Construct A New Database for this module & any any
> other new module or make it all in the same database because they all
> shared the same master Data'
> Any Help Will Be Appreciated
>|||As John Suggests, Absolutely, positively use views so you can move things if
you wish..
I prefer ( if size permits) to have everything in a single database...
However you may wish to place different modules in different filegroups IF
you think you may wish to backup/restore a module independently of the
others..
If you put things in different databases, remember things can get out of
sync, unless you shut everything down for backups... Also there can be no
cross-database referential integrity...
Try to put them together in the db, but separate if you must.
--
Wayne Snyder, MCDBA, SQL Server MVP
Mariner, Charlotte, NC
www.mariner-usa.com
(Please respond only to the newsgroups.)
I support the Professional Association of SQL Server (PASS) and it's
community of SQL Server professionals.
www.sqlpass.org
"Mariame" <mariame_waguih@.hotmail.com> wrote in message
news:uPlhibieFHA.2128@.TK2MSFTNGP14.phx.gbl...
> Hi Everyone
> I Have a Question Concerning DataBase Structure,
> If i have a database that contains All Master Tables [user acount,user
> detail &...] & i have to make another module for the same system that
> will use the same master tables
> Is it Preferred To Construct A New Database for this module & any any
> other new module or make it all in the same database because they all
> shared the same master Data'
> Any Help Will Be Appreciated
>|||"Wayne Snyder" <wayne.nospam.snyder@.mariner-usa.com> wrote in message
news:eXcEc7keFHA.2736@.TK2MSFTNGP12.phx.gbl...
> As John Suggests, Absolutely, positively use views so you can move things
> if you wish..
> I prefer ( if size permits) to have everything in a single database...
> However you may wish to place different modules in different filegroups IF
> you think you may wish to backup/restore a module independently of the
> others..
> If you put things in different databases, remember things can get out of
> sync, unless you shut everything down for backups... Also there can be no
> cross-database referential integrity...
> Try to put them together in the db, but separate if you must.
>
I agree. But I would go further and say that when you are designing a
system from the ground-up, you never "must". If you think you must seperate
related objects into different databases, think again. Schemas, FileGroups,
views, permissions, etc will usually let you keep the objects in one
database.
David|||If you place your master data in several databases, then you may end up with
lots of duplicate for indexes, views, triggers, procedures etc, it probably
does not worth unless your table will be really big.
"Mariame" <mariame_waguih@.hotmail.com> wrote in message
news:uPlhibieFHA.2128@.TK2MSFTNGP14.phx.gbl...
> Hi Everyone
> I Have a Question Concerning DataBase Structure,
> If i have a database that contains All Master Tables [user acount,user
> detail &...] & i have to make another module for the same system that
> will use the same master tables
> Is it Preferred To Construct A New Database for this module & any any
> other new module or make it all in the same database because they all
> shared the same master Data'
> Any Help Will Be Appreciated
>