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Big Data Technology & Architecture
Big Data Technology & Architecture
Dec 28, 2020 · Big Data

Implementing Historical Slowly Changing Dimension (Chain) Tables with PL/pgSQL

This article explains the concept of historical chain (slowly changing dimension) tables in data warehousing, demonstrates how to create source and target tables, provides a PL/pgSQL stored procedure to handle inserts, updates, and deletions, and shows step‑by‑step testing with sample SQL scripts.

Big DataPL/pgSQLSlowly Changing Dimension
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Implementing Historical Slowly Changing Dimension (Chain) Tables with PL/pgSQL