Click here to get free chapters (PDF) in the mailbox What are slowly changing dimensions (SCD)? SCD is abbreviation of Slowly changing dimensions. SCD applies to cases where the attribute for a record varies over time. There are three different types of SCD. 1) SCD1 : The new record replaces…

Click here to get free chapters (PDF) in the mailbox What are normalization forms? Please visit this article. Describes the foreign key columns in fact table and dimension table? Foreign keys of dimension tables are primary keys of entity tables. Foreign keys of facts tables are primary keys of Dimension…