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Prasad
 
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Default MSAS 2002 to MSAS 2005 Migration: DSV Question. - 10-27-2005 , 05:23 PM






Hi,

In our old MSAS 2000 we have about 20 physical cubes (20 fact tables and
around 300 rollup tables). Everything is created in 1 data base. Some of the
physicsl cubes share dimensions (rollup tables).

When we migrated to MSAS 2005 with the help of Migration wizard, it created
1 huge DSV with 20 fact tables and 300 rollup tables. As you can understand
the DSV is unmanageable and very hard to interpret.

Please suggest any alternative designs.

One thing i did is to break the one huge DSV into multiple logical smaller
DSV's to easily manage. the problem is once i start building physical cubes
from these different DSV's, each cube created its own copy of the dimension
as the source DSV is different.

Now that i have 5 logical DSV's and some common shared dimensions, i have
multiple copies of the same dimensions with different names. More over the
dimension names it created are meaningless.

Please comment.

Thanks,

Sam.

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Jéjé
 
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Default Re: MSAS 2002 to MSAS 2005 Migration: DSV Question. - 10-27-2005 , 08:04 PM






in 1 DSV you can create "views" (not SQL views)
in these "views" you can display only the table you want.
the "default view" contains all the tables.

lookat the upper left of the DSV screen to create a new one.

"Prasad" <Prasad (AT) discussions (DOT) microsoft.com> wrote

Quote:
Hi,

In our old MSAS 2000 we have about 20 physical cubes (20 fact tables and
around 300 rollup tables). Everything is created in 1 data base. Some of
the
physicsl cubes share dimensions (rollup tables).

When we migrated to MSAS 2005 with the help of Migration wizard, it
created
1 huge DSV with 20 fact tables and 300 rollup tables. As you can
understand
the DSV is unmanageable and very hard to interpret.

Please suggest any alternative designs.

One thing i did is to break the one huge DSV into multiple logical smaller
DSV's to easily manage. the problem is once i start building physical
cubes
from these different DSV's, each cube created its own copy of the
dimension
as the source DSV is different.

Now that i have 5 logical DSV's and some common shared dimensions, i have
multiple copies of the same dimensions with different names. More over the
dimension names it created are meaningless.

Please comment.

Thanks,

Sam.



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  #3  
Old   
Prasad
 
Posts: n/a

Default Re: MSAS 2002 to MSAS 2005 Migration: DSV Question. - 10-27-2005 , 09:45 PM



Thank You.

"Jéjé" wrote:

Quote:
in 1 DSV you can create "views" (not SQL views)
in these "views" you can display only the table you want.
the "default view" contains all the tables.

lookat the upper left of the DSV screen to create a new one.

"Prasad" <Prasad (AT) discussions (DOT) microsoft.com> wrote in message
news:128A49B5-D388-43B5-AE34-4DE319BF0CF0 (AT) microsoft (DOT) com...
Hi,

In our old MSAS 2000 we have about 20 physical cubes (20 fact tables and
around 300 rollup tables). Everything is created in 1 data base. Some of
the
physicsl cubes share dimensions (rollup tables).

When we migrated to MSAS 2005 with the help of Migration wizard, it
created
1 huge DSV with 20 fact tables and 300 rollup tables. As you can
understand
the DSV is unmanageable and very hard to interpret.

Please suggest any alternative designs.

One thing i did is to break the one huge DSV into multiple logical smaller
DSV's to easily manage. the problem is once i start building physical
cubes
from these different DSV's, each cube created its own copy of the
dimension
as the source DSV is different.

Now that i have 5 logical DSV's and some common shared dimensions, i have
multiple copies of the same dimensions with different names. More over the
dimension names it created are meaningless.

Please comment.

Thanks,

Sam.




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  #4  
Old   
Prasad
 
Posts: n/a

Default Re: MSAS 2002 to MSAS 2005 Migration: DSV Question. - 10-27-2005 , 09:57 PM



Hi,

Thanks for the reply.

The problem i had was when i migrated all the cubes from MSAS 2000 to MSAS
2005, it brought all the related fact tables and rollup tables to the DSV.
It is very tough to establish all the joins between the corresponding rollup
tables and the fact tables in the main DSV.

So, can i bring the fact table and the rollup tables that i just need for
building the physical cube into the new view of DSV and establish joins in
theis view instead of the big DSV it created?

Thanks,
Quote:
in 1 DSV you can create "views" (not SQL views)
in these "views" you can display only the table you want.
the "default view" contains all the tables.

lookat the upper left of the DSV screen to create a new one.

"Prasad" <Prasad (AT) discussions (DOT) microsoft.com> wrote in message
news:128A49B5-D388-43B5-AE34-4DE319BF0CF0 (AT) microsoft (DOT) com...
Hi,

In our old MSAS 2000 we have about 20 physical cubes (20 fact tables and
around 300 rollup tables). Everything is created in 1 data base. Some of
the
physicsl cubes share dimensions (rollup tables).

When we migrated to MSAS 2005 with the help of Migration wizard, it
created
1 huge DSV with 20 fact tables and 300 rollup tables. As you can
understand
the DSV is unmanageable and very hard to interpret.

Please suggest any alternative designs.

One thing i did is to break the one huge DSV into multiple logical smaller
DSV's to easily manage. the problem is once i start building physical
cubes
from these different DSV's, each cube created its own copy of the
dimension
as the source DSV is different.

Now that i have 5 logical DSV's and some common shared dimensions, i have
multiple copies of the same dimensions with different names. More over the
dimension names it created are meaningless.

Please comment.

Thanks,

Sam.




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