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ETL Design Pattern is a framework of generally reusable solution to the commonly occurring problems in the context of Extraction, Transformation and Loading (ETL) activities of data in a data warehousing environment. We have presented the design pattern of a few commonly occurring ETL scenarios below.

Standard ETL Scenario

The following section, which we have presented in the form of a table, demonstrates the ETL design pattern for number of recurring design problems commonly found in data warehouses built on the principle of dimensional modeling.

Feel free to click on any item to know the detail design pattern for it.

No Scenario / Design Problem Tool specific implementation
Informatica BODS SSIS
1 Slowly Changing Dimension (SCD) Type 1 (Full Load from Source) Click Here Click Here Click Here
2 Slowly Changing Dimension (SCD) Type 1 (Incremental Load from Source) Click Here Click Here Click Here
3 Slowly Changing Dimension (SCD) Type 2 (Incremental Load from Source) Click Here Click Here Click Here
4 Slowly Changing Dimension (SCD) Type 2 (Incremental Load from Source) Click Here Click Here Click Here
5 Rapidly Changing Dimension (RCD) Click Here Click Here Click Here
6 Slowly Changing Dimension (SCD) Type 3 (Incremental Load from Source) Click Here Click Here Click Here
7 Incident Fact Loading Click Here Click Here Click Here
8 Aggregation of Fact Table Click Here Click Here Click Here
9 Early arriving fact / Late arriving dimension Click Here Click Here Click Here
10 Snapshot Fact Loading Click Here Click Here Click Here

 


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