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SQL Made Simple 2026: A Practical Guide to Database Queries, Joins, Functions, Indexing, Optimization, and Hands-On Business Applications
Paperback
Publisher: Independently Published
Published: Aug 13 2026
Pages: 148
Weight: 0.79
Height: 0.32 Width: 8.50 Depth: 11.00
Language: English
SQL is the language behind much of the structured data used in applications, business systems, reporting platforms, and relational databases. SQL Made Simple 2026 focuses on the reasoning behind SQL statements not simply a collection of commands so readers can understand how to construct queries that produce the intended results.
The book comprises:
Core Query Techniques: Learn how SELECT, WHERE, ORDER BY, DISTINCT, expressions, operators, and conditional logic work together to retrieve specific records with precision.
Relational Data Operations: Work with primary and foreign keys, table relationships, JOIN operations, aggregation, GROUP BY, HAVING, and subqueries to extract information distributed across multiple tables.
Database Modification and Structure: Practice INSERT, UPDATE, and DELETE operations while examining constraints, normalization, data types, and the structural principles that keep relational data organized.
Applied SQL Exercises: Solve realistic query problems involving filtering, calculations, comparisons, summaries, NULL values, nested queries, and multi-table datasets, reinforcing each technique through direct application.
Rather than overwhelming readers with unnecessary terminology, the material develops SQL progressively, connecting individual statements to the database problems they are designed to solve.
Open the book, work through the examples, test each query, and develop a practical command of SQL one problem at a time.
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