The terms “PCTFREE“, “PCTUSED“, and “Row Migration” are closely associated with the Oracle RDBMS. However,  PostgreSQL works differently. Although PostgreSQL lacks direct equivalents, it has similar concepts worth exploring. Let’s delve into these terms as … Continue reading Comparing Storage Mechanisms: Oracle’s PCTFREE, PCTUSED, and Row Migration vs. PostgreSQL’s MVCC and Tuple Management