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PostgreSQL case statements explained with simple examples

PostgreSQL CASE statements make it possible to add conditional logic directly into SQL queries, working similarly to IF ELSE statements in programming languages and spreadsheet tools. This tutorial us ...
I Programmer

Oracle PL/SQL By Example, 6th Ed

This is the sixth edition of a well established title that has been updated for the latest version of PL/SQL (21c). The book opens with a checklist of the new features in Oracle 21c before the actual ...