Quantcast
Channel: SQLServerCentral » Data Warehousing » Analysis Services » Latest topics
Viewing all articles
Browse latest Browse all 1341

fact and dimension load

$
0
0
Hi advice please?1. Is it better to load the fact table from the dimension tables, so populate the dimensions with all records from DW and load fact with same records from those dimensions using joins.2.Or is it better to have the dimensions only contain the main attributes (not actual records) in a list format, so say 10 rows for customer dimension and 20 rows for products in product dimension, then load the fact table from the DW and not the dimension(s).From what I can see both ways will work although point 1 would mean adding all the records to the dimensions first then select across to the fact table which would be overkill??And point 2 would be in effect just lists of unique customers, products...with a business key in each to point back to the fact.Please can someone enlighten me on this one?ThanksSandman

Viewing all articles
Browse latest Browse all 1341

Trending Articles