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SQL that finally makes sense.

Data runs every business now — and sooner or later, the answer to “can you just pull that?” is SQL. If you’ve ever stared at a database not knowing where to start, this book is your way in.

From Zero to SQL in 20 Lessons takes you from your very first SELECT to joins, subqueries, and window functions in twenty short, practical lessons. No jargon and no wading through theory — just clear, plain-English explanations and tested examples you run as you read.

• Retrieve, filter, and sort data to answer real questions
• Read a database diagram and see how tables relate
• Join tables and know exactly what comes back
• Summarize data with aggregate and window functions
• Insert, update, and delete records with confidence
• Create and change tables, views, and other objects
• Write cleaner queries, with best-practice tips on structure and formatting

Works with the database you already use. This fully updated second edition is vendor-neutral: every example is tested in Microsoft SQL Server, MySQL, and PostgreSQL, with the differences called out where they matter — so you’re never left guessing whether a query runs on your system.

Practice from page one. The free LearnSQL sample database — plus ready-to-run setup and query scripts for all three databases — is available at zerotosql.com. Paste one script into a free browser sandbox and you’re querying in minutes, no install required.

Who it’s for: complete beginners, analysts and students who need SQL for reporting, career-changers, and anyone who wants a friendly reference they can actually follow.

Learning something new takes guts, and I’m glad you’re here. If you get stuck or have a question, come find me at zerotosql.com — I’d love to help you along the SQL trail.

Your first query is closer than you think. Scroll up and click Buy Now to get started.

Procurando From Zero To SQL In 20 Lessons: SQL THAT FINALLY MAKES SENSE? Aqui você encontra tudo sobre este livro de Carlos L Chacon. Nesta página estão a descrição da obra, os detalhes da edição (146 páginas) e os formatos disponíveis para baixar: pdf, mp3, áudio-livro, kindle. Se você gosta de Livros Internacionais, Computação, Informática e Mídias Digitais, Base de Dados, SQL, explore também outros títulos da mesma categoria no LivrosQualidade. Veja ainda as outras obras de Carlos L Chacon em nosso catálogo.