SCD type 2 will store the entire history in the dimension table. In SCD type 2 effective date, the dimension table will have start-date and end-date as the fields. If the end-date is null, then it ...

ETL (Extract, Transform and Load) is a key, and very complicated, component of a data management strategy. This high-level checklist of the most central issues will help you get started with this ...

Oracle Corp. today released the long-awaited overhaul of its database design and ETL (extraction, transformation and load) tool, Warehouse Builder 10g, Release 2 (formerly code-named "Paris").

Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. ETL (extract, transform, load) migration is often treated as an afterthought when companies ...

In this approach, only the information about a previous value of a dimension is written into the database. An ‘Old ‘or ‘Previous’ column is created which stores the immediate previous attribute. The ...