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  #1  
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Michael Vardinghus
 
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Default Data Marts - 10-07-2004 , 10:20 AM






I see two ways - not sure about pro's and con's

1) Pulling out data from one fact table and creating new fact tables using
SQL
2) Using source table filter in AS without doing anything in SQL

--Michael V.





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  #2  
Old   
Jamie Thomson
 
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Default RE: Data Marts - 10-07-2004 , 12:53 PM






If #2 is an option that I'd got for that every time! The tmie and effort it
saves you in ETL more than makes up for the minor load increases that you MAY
put onto your fact table.
If you don't have users accessing your DW directly then its a no-brainer
(IMO).

Regards
Jamie Thomson
http://www.conchango.com


"Michael Vardinghus" wrote:

Quote:
I see two ways - not sure about pro's and con's

1) Pulling out data from one fact table and creating new fact tables using
SQL
2) Using source table filter in AS without doing anything in SQL

--Michael V.






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  #3  
Old   
Michael Vardinghus
 
Posts: n/a

Default Re: Data Marts - 10-07-2004 , 05:16 PM



Thanks Jamie

Tried option 2 and that was a no go...don't get the idea of this filter but
you cannot filter dimension values that exists in the fact table...it will
give an error when processing cube.

About 1 - what to choose:

DTS or replication...is replication faster ... ? I don't need to wash
because I'll just take a copy of data in the fact table but my fact table is
emptied every night and filled again with all records - does that mean that
I wont get the replication benefits ?

"Jamie Thomson" <jamie.thomson (AT) donotspam (DOT) conchango.com> skrev i en
meddelelse news:0B858428-8EA2-4D4E-A2F7-C481BDA46C30 (AT) microsoft (DOT) com...
Quote:
If #2 is an option that I'd got for that every time! The tmie and effort
it
saves you in ETL more than makes up for the minor load increases that you
MAY
put onto your fact table.
If you don't have users accessing your DW directly then its a no-brainer
(IMO).

Regards
Jamie Thomson
http://www.conchango.com


"Michael Vardinghus" wrote:

I see two ways - not sure about pro's and con's

1) Pulling out data from one fact table and creating new fact tables
using
SQL
2) Using source table filter in AS without doing anything in SQL

--Michael V.








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  #4  
Old   
Jamie Thomson
 
Posts: n/a

Default Re: Data Marts - 10-07-2004 , 05:25 PM



Why won't option 2) work? I thought you were putting the view(s) onto the
fact table, not the dimension tables.

DTS or Replication. I personally would go for DTS but thats cos I know alot
about DTS and nothing about replication.

Regards
Jamie Thomson
http://www.conchango.com


"Michael Vardinghus" wrote:

Quote:
Thanks Jamie

Tried option 2 and that was a no go...don't get the idea of this filter but
you cannot filter dimension values that exists in the fact table...it will
give an error when processing cube.

About 1 - what to choose:

DTS or replication...is replication faster ... ? I don't need to wash
because I'll just take a copy of data in the fact table but my fact table is
emptied every night and filled again with all records - does that mean that
I wont get the replication benefits ?

"Jamie Thomson" <jamie.thomson (AT) donotspam (DOT) conchango.com> skrev i en
meddelelse news:0B858428-8EA2-4D4E-A2F7-C481BDA46C30 (AT) microsoft (DOT) com...
If #2 is an option that I'd got for that every time! The tmie and effort
it
saves you in ETL more than makes up for the minor load increases that you
MAY
put onto your fact table.
If you don't have users accessing your DW directly then its a no-brainer
(IMO).

Regards
Jamie Thomson
http://www.conchango.com


"Michael Vardinghus" wrote:

I see two ways - not sure about pro's and con's

1) Pulling out data from one fact table and creating new fact tables
using
SQL
2) Using source table filter in AS without doing anything in SQL

--Michael V.









Reply With Quote
  #5  
Old   
Michael Vardinghus
 
Posts: n/a

Default Re: Data Marts - 10-08-2004 , 05:00 AM



Of course it will...my mistake....

I put a view on top of the fact table ....

Thanks Jamie


"Jamie Thomson" <jamie.thomson (AT) donotspam (DOT) conchango.com> skrev i en
meddelelse news:86865323-4417-49A6-9DC8-AABC20596B67 (AT) microsoft (DOT) com...
Quote:
Why won't option 2) work? I thought you were putting the view(s) onto the
fact table, not the dimension tables.

DTS or Replication. I personally would go for DTS but thats cos I know
alot
about DTS and nothing about replication.

Regards
Jamie Thomson
http://www.conchango.com


"Michael Vardinghus" wrote:

Thanks Jamie

Tried option 2 and that was a no go...don't get the idea of this filter
but
you cannot filter dimension values that exists in the fact table...it
will
give an error when processing cube.

About 1 - what to choose:

DTS or replication...is replication faster ... ? I don't need to wash
because I'll just take a copy of data in the fact table but my fact
table is
emptied every night and filled again with all records - does that mean
that
I wont get the replication benefits ?

"Jamie Thomson" <jamie.thomson (AT) donotspam (DOT) conchango.com> skrev i en
meddelelse news:0B858428-8EA2-4D4E-A2F7-C481BDA46C30 (AT) microsoft (DOT) com...
If #2 is an option that I'd got for that every time! The tmie and
effort
it
saves you in ETL more than makes up for the minor load increases that
you
MAY
put onto your fact table.
If you don't have users accessing your DW directly then its a
no-brainer
(IMO).

Regards
Jamie Thomson
http://www.conchango.com


"Michael Vardinghus" wrote:

I see two ways - not sure about pro's and con's

1) Pulling out data from one fact table and creating new fact tables
using
SQL
2) Using source table filter in AS without doing anything in SQL

--Michael V.











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