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Cover: 9781484219546 | Beginning SQL Queries | From Novice to Professional | Clare Churcher
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Beginning SQL Queries
From Novice to Professional
Taschenbuch von Clare Churcher
Sprache: Englisch

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Beschreibung
Get started on mastering the one language binding the entire database industry. That language is SQL, and how it works is must-have knowledge for anyone involved with relational databases, and surprisingly also for anyone involved with NoSQL databases. SQL is universally used in querying and reporting on large data sets in order to generate knowledge to drive business decisions.
Good knowledge of SQL is crucial to anyone working with databases, because it is with SQL that you retrieve data, manipulate data, and generate business results. Every relational database supports SQL for its expressiveness in writing queries underlying reports and business intelligence dashboards. Knowing how to write good queries is the foundation for all work done in SQL, and it is a foundation that Clare Churcher's book, Beginning SQL Queries, 2nd Edition, lays well.
What You Will Learn
Write simple queries to extract datafrom a single table

Combine data from many tables into one business result using set operations

Translate natural language questions into database queries providing meaningful information to the business

Avoid errors associated with duplicated and null values

Summarize data with amazing ease using the newly-added feature of window functions

Tackle tricky queries with confidence that you are generating correct results

Investigate and understand the effects of indexes on the efficiency of queries
Who This Book Is For
Beginning SQL Queries, 2nd Edition is aimed at intelligent laypeople who need to extract information from a database, and at developers and other IT professionals who are new to SQL. The book is especially useful for business intelligence analysts who must ask more complex questions of their database than their GUI¿based reportingsoftware supports. Such people might be business owners wanting to target specific customers, scientists and students needing to extract subsets of their research data, or end users wanting to make the best use of databases for their clubs and societies.
Get started on mastering the one language binding the entire database industry. That language is SQL, and how it works is must-have knowledge for anyone involved with relational databases, and surprisingly also for anyone involved with NoSQL databases. SQL is universally used in querying and reporting on large data sets in order to generate knowledge to drive business decisions.
Good knowledge of SQL is crucial to anyone working with databases, because it is with SQL that you retrieve data, manipulate data, and generate business results. Every relational database supports SQL for its expressiveness in writing queries underlying reports and business intelligence dashboards. Knowing how to write good queries is the foundation for all work done in SQL, and it is a foundation that Clare Churcher's book, Beginning SQL Queries, 2nd Edition, lays well.
What You Will Learn
Write simple queries to extract datafrom a single table

Combine data from many tables into one business result using set operations

Translate natural language questions into database queries providing meaningful information to the business

Avoid errors associated with duplicated and null values

Summarize data with amazing ease using the newly-added feature of window functions

Tackle tricky queries with confidence that you are generating correct results

Investigate and understand the effects of indexes on the efficiency of queries
Who This Book Is For
Beginning SQL Queries, 2nd Edition is aimed at intelligent laypeople who need to extract information from a database, and at developers and other IT professionals who are new to SQL. The book is especially useful for business intelligence analysts who must ask more complex questions of their database than their GUI¿based reportingsoftware supports. Such people might be business owners wanting to target specific customers, scientists and students needing to extract subsets of their research data, or end users wanting to make the best use of databases for their clubs and societies.
Über den Autor
Clare Churcher (B.Sc. (Hons), Ph.D.(physics)) has designed several databases for a variety of large and small projects. She is a currently a Senior Lecturer and Development Manager for Applied IT at Tai Poutini Polytechnic. She spent two years as a Business Analyst for a large international software development company, and prior to that nearly two decades as a senior faculty member of the Applied Computing Group at Lincoln University where her teaching included Analysis and Design, Database, and Programming papers. In 2006 she won a Lincoln University Excellence in Teaching Award. She has supervised over 70 undergraduate projects designing databases for small projects.
Zusammenfassung

Beginning SQL Queries, 2nd Edition is a friendly and easily read guide to writing queries with the all-important - in the database world - SQL language. Anyone who does any work at all with databases needs to know something of SQL, and that increasingly today includes those using so-called NoSQL databases, because a strong trend in the industry is to make those databases accessible from SQL after all, at least for reporting purposes, and for analysis. Beginning SQL Queries, 2nd Edition is written by the author of Beginning Database Design, an author who is garnering great reviews on Amazon due to the clarity and succinctness of her writing.

Inhaltsverzeichnis
1. Relational Database Overview.- 2. Simple Queries on One Table.- 3. A First Look at Joins.- 4. Nested Queries.- 5. Self Joins.- 6. Multiple Relationships Between Tables.- 7. Set Operations.- 8. Aggregate Operations.- 9. Window Function.- 10. Efficiency Considerations.- 11. Approaching A Query.- 12. Common Problems.- Chapter 13: Appendix 1: Sample Database.- Chapter 14: Appendix 2: Relational Notation.
Details
Erscheinungsjahr: 2016
Genre: Informatik
Rubrik: Naturwissenschaften & Technik
Medium: Taschenbuch
Inhalt: xxii
234 S.
19 s/w Illustr.
142 farbige Illustr.
234 p. 161 illus.
142 illus. in color.
ISBN-13: 9781484219546
ISBN-10: 1484219546
Sprache: Englisch
Herstellernummer: 978-1-4842-1954-6
Ausstattung / Beilage: Paperback
Einband: Kartoniert / Broschiert
Autor: Churcher, Clare
Auflage: 2nd ed.
Hersteller: Apress
Apress L.P.
Maße: 254 x 178 x 15 mm
Von/Mit: Clare Churcher
Erscheinungsdatum: 07.07.2016
Gewicht: 0,496 kg
Artikel-ID: 103934186
Über den Autor
Clare Churcher (B.Sc. (Hons), Ph.D.(physics)) has designed several databases for a variety of large and small projects. She is a currently a Senior Lecturer and Development Manager for Applied IT at Tai Poutini Polytechnic. She spent two years as a Business Analyst for a large international software development company, and prior to that nearly two decades as a senior faculty member of the Applied Computing Group at Lincoln University where her teaching included Analysis and Design, Database, and Programming papers. In 2006 she won a Lincoln University Excellence in Teaching Award. She has supervised over 70 undergraduate projects designing databases for small projects.
Zusammenfassung

Beginning SQL Queries, 2nd Edition is a friendly and easily read guide to writing queries with the all-important - in the database world - SQL language. Anyone who does any work at all with databases needs to know something of SQL, and that increasingly today includes those using so-called NoSQL databases, because a strong trend in the industry is to make those databases accessible from SQL after all, at least for reporting purposes, and for analysis. Beginning SQL Queries, 2nd Edition is written by the author of Beginning Database Design, an author who is garnering great reviews on Amazon due to the clarity and succinctness of her writing.

Inhaltsverzeichnis
1. Relational Database Overview.- 2. Simple Queries on One Table.- 3. A First Look at Joins.- 4. Nested Queries.- 5. Self Joins.- 6. Multiple Relationships Between Tables.- 7. Set Operations.- 8. Aggregate Operations.- 9. Window Function.- 10. Efficiency Considerations.- 11. Approaching A Query.- 12. Common Problems.- Chapter 13: Appendix 1: Sample Database.- Chapter 14: Appendix 2: Relational Notation.
Details
Erscheinungsjahr: 2016
Genre: Informatik
Rubrik: Naturwissenschaften & Technik
Medium: Taschenbuch
Inhalt: xxii
234 S.
19 s/w Illustr.
142 farbige Illustr.
234 p. 161 illus.
142 illus. in color.
ISBN-13: 9781484219546
ISBN-10: 1484219546
Sprache: Englisch
Herstellernummer: 978-1-4842-1954-6
Ausstattung / Beilage: Paperback
Einband: Kartoniert / Broschiert
Autor: Churcher, Clare
Auflage: 2nd ed.
Hersteller: Apress
Apress L.P.
Maße: 254 x 178 x 15 mm
Von/Mit: Clare Churcher
Erscheinungsdatum: 07.07.2016
Gewicht: 0,496 kg
Artikel-ID: 103934186
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