SQL by example / / John Russo

• Autore: Russo John
• Pubblicazione: New York [New York] (222 East 46th Street, New York, NY 10017) : , : Momentum Press, , 2019
• Descrizione fisica: 1 online resource (1 PDF (xxii, 101 pages)) : illustrations
• Disciplina: 005.756
• Soggetto topico: SQL (Computer program language)
• Soggetto genere / forma: Problems and exercises.
• Soggetto non controllato: query; language; RDBMS; relation database management systems; SQL; Structured query language; table
• Note generali: Includes index.; Title from PDF title page (viewed on December 13, 2018).
• Nota di contenuto: 1. The shore to shore shipping case study -- 1.1 Overview -- 1.2 Objectives -- 1.3 The Shore to Shore Shipping Company case study -- 1.4 Captain -- 1.5 Manufacturer -- 1.6 Ship -- 1.7 Item -- 1.8 Distance -- 1.9 Shipment -- 1.10 Shipment_Line -- 1.11 Problem solving using database management systems -- 1.12 Summary ; 2. Basic SQL syntax -- 2.1 Objectives -- 2.2 Syntax of an SQL statement -- 2.3 Expressions in the select clause -- 2.4 Extending SQL: the distinct clause -- 2.5 Qualifying the result set: the where clause -- 2.6 Putting it all together: selective aggregation -- 2.7 Summary ; 3. Single table queries -- 3.1 Introduction -- 3.2 Objectives -- 3.3 Review -- 3.4 Logical operators -- 3.5 On your own exercises -- 3.6 Compound where clauses -- 3.7 Order of operator precedence -- 3.8 Special operators -- 3.9 Computed columns -- 3.10 The order by clause -- 3.11 Summary ; 4. Introduction to joins -- 4.1 Introduction -- 4.2 Objectives -- 4.3 Multiple-table queries -- 4.4 Referential integrity constraints -- 4.5 Joining tables -- 4.6 Composite keys -- 4.7 Joining more than two tables -- 4.8 Shore to shore shipping map -- 4.9 Summary ; 5. Advanced join operations -- 5.1 Introduction -- 5.2 Objectives -- 5.3 Review of join operations -- 5.4 Self joins -- 5.5 Outer joins -- 5.6 Summary ; 6. Sub-queries -- 6.1 Introduction -- 6.2 Objectives -- 6.3 Sub-queries -- 6.4 Summary ; 7. Grouping data -- 7.1 Introduction -- 7.2 Objectives -- 7.3 The group by clause -- 7.4 Calculated fields -- 7.5 Group by with the having clause -- 7.6 Using count distinct -- 7.7 Count distinct and outer joins -- 7.8 Inline views -- 7.9 Summary ; About the author -- Index.
• Sommario/riassunto: SQL by Example uses one case study to teach the reader basic structured query language (SQL) skills. The author has tested the case study in the classroom with thousands of students. While other SQL texts tend to use examples from many different data sets, the author has found that once students get used to one case study, they learn the material at a much faster rate. The text begins with an introduction to the case study and trains the reader to think like the query processing engine for a relational database management system. Once the reader has a grasp of the case study then SQL programming constructs are introduced with examples from the case study. In order to reinforce concepts, each chapter has several exercises with solutions provided on the book's website. SQL by Example is designed both for those who have never worked with SQL as well as those with some experience. It is modular in that each chapter can be approached individually or as part of a sequence, giving the reader flexibility in the way that they learn or refresh concepts. This also makes the book a great reference to refer back to once the reader is honing his or her SQL skills on the job.
• Titolo autorizzato: SQL by example
• ISBN: 1-945612-63-0
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910793359803321
• Lo trovi qui: Univ. Federico II
• Serie: Computer science collection.