'PostgreSQL is a powerful open source relational database. It supports ACID transactions, foreign keys, and a rich type system including JSON and arrays.', 'Ada Lovelace', '2025-10-01'), ('Indexing ...
( NOTE : ABOVE ADVANTAGE IS WE CAN DISPLAY ONLY WHAT WE NEED THAT THINGS ONLY WE CAN ADD TO QUERY BUT ALL THE INNER QUERIES ARE EXECUTED BUT WE CAN RESTRICT WHAT DISPLAY IN OUTER SUBQUERY) ...
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