A step-by-step introduction to SQL, covering everything from basic commands to advanced techniques. Each code snippet is explained and interpreted, making it easy to understand the concepts and apply ...

Follow this step-by-step guide to install PostgreSQL, load data, connect to a database, and execute SQL queries including table joins PostgreSQL is an open-source, object-relational (also called ...

Tutorial 3-may2025.pdf Tutorial document describing PL/SQL exercises and learning objectives. Tutorial 5-may2025.pdf Tutorial document with exercises involving functions like calculating total orders ...

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