SQL Primer (eBook)
XVII, 194 Seiten
Apress (Verlag)
978-1-4842-3576-8 (ISBN)
- Create and populate your own database tables
- Read SQL queries and understand what they are doing
- Execute queries that get correct results
- Bring together related rows from multiple tables
- Group and sort data in support of reporting applications
- Get a grip on nulls, normalization, and other key concepts
- Employ subqueries, unions, and other advanced features
Rahul Batra was first introduced to programming in 1996 with GWBASIC, but he did not seriously foray into programming until 2001 when he started learning C++. Along the way, Rahul dabbled in many other languages such as C, Ruby, Perl, Python, and Lisp. He has worked with databases such as PostgreSQL, Sybase ASA, and SQLite. He is passionate about sharing knowledge, especially with those who are just starting out. Rahul currently lives and works in Gurgaon, India.
Build a core level of competency in SQL so you can recognize the parts of queries and write simple SQL statements. SQL knowledge is essential for anyone involved in programming, data science, and data management. This book covers features of SQL that are standardized and common across most database vendors. You will gain a base of knowledge that will prepare you to go deeper into the specifics of any database product you might encounter. Examples in the book are worked in PostgreSQL and SQLite, but the bulk of the examples are platform agnostic and will work on any database platform supporting SQL. Early in the book you learn about table design, the importance of keys as row identifiers, and essential query operations. You then move into more advanced topics such as grouping and summarizing, creating calculated fields, joining data from multiple tables when it makes business sense to do so, and more. Throughout the book, you are exposed to a set-based approachto the language and are provided a good grounding in subtle but important topics such as the effects of null value on query results. With the explosion of data science, SQL has regained its prominence as a top skill to have for technologists and decision makers worldwide. SQL Primer will guide you from the very basics of SQL through to the mainstream features you need to have a solid, working knowledge of this important, data-oriented language.What You'll LearnCreate and populate your own database tablesRead SQL queries and understand what they are doingExecute queries that get correct resultsBring together related rows from multiple tablesGroup and sort data in support of reporting applicationsGet a grip on nulls, normalization, and other key conceptsEmploy subqueries, unions, and other advanced featuresWho This Book Is ForAnyone new to SQL who is looking for step-by-step guidance toward understanding and writing SQL queries. The book is aimed at those who encounter SQL statements often in their work, and provides a sound baseline useful across all SQL database systems. Programmers, database managers, data scientists, and business analysts all can benefit from the baseline of SQL knowledge provided in this book.
Rahul Batra was first introduced to programming in 1996 with GWBASIC, but he did not seriously foray into programming until 2001 when he started learning C++. Along the way, Rahul dabbled in many other languages such as C, Ruby, Perl, Python, and Lisp. He has worked with databases such as PostgreSQL, Sybase ASA, and SQLite. He is passionate about sharing knowledge, especially with those who are just starting out. Rahul currently lives and works in Gurgaon, India.
1. An Introduction to SQL2. Getting Your Database Ready3. The Benefit of Constraints4. Operations on Tables5. Writing Basic Queries6. Manipulating Data7. Organizing Your Data8. Doing More with Queries9. Calculated Fields10. Aggregation and Grouping11. Understanding Joins12. Subqueries13. Working in Sets14. Views15. Indexing16. Access Control Statements17: Appendix A. Further Reading18. Appendix B. Database Management Systems and Tools19. Appendix C. A History of SQL and Relational Databases
| Erscheint lt. Verlag | 15.6.2018 |
|---|---|
| Zusatzinfo | XVII, 194 p. 14 illus. |
| Verlagsort | Berkeley |
| Sprache | englisch |
| Themenwelt | Mathematik / Informatik ► Informatik ► Datenbanken |
| Mathematik / Informatik ► Informatik ► Software Entwicklung | |
| Schlagworte | ACID Properties • Aggregation and Grouping • Atomicity • Database • normalization • Querying • SQL • Working in Sets • Writing Queries |
| ISBN-10 | 1-4842-3576-2 / 1484235762 |
| ISBN-13 | 978-1-4842-3576-8 / 9781484235768 |
| Informationen gemäß Produktsicherheitsverordnung (GPSR) | |
| Haben Sie eine Frage zum Produkt? |
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