Expert T-SQL Window Functions in SQL Server (eBook)
XVII, 152 Seiten
Apress (Verlag)
978-1-4842-1103-8 (ISBN)
Expert T-SQL Window Functions in SQL Server takes you from any level of knowledge of windowing functions and turns you into an expert who can use these powerful functions to solve many T-SQL queries. Replace slow cursors and self-joins with queries that are easy to write and fantastically better performing, all through the magic of window functions.
First introduced in SQL Server 2005, window functions came into full blossom with SQL Server 2012. They truly are one of the most notable developments in SQL in a decade, and every developer and DBA can benefit from their expressive power in solving day-to-day business problems. Begin using windowing functions like ROW_NUMBER and LAG, and you will discover more ways to use them every day. You will approach SQL Server queries in a different way, thinking about sets of data instead of individual rows. Your queries will run faster, they will be easier to write, and they will be easier to deconstruct and maintain and enhance in the future.
Just knowing and using these functions is not enough. You also need to understand how to tune the queries. Expert T-SQL Window Functions in SQL Server explains clearly how to get the best performance. The book also covers the rare cases when older techniques are the best bet. Stop using cursors and self-joins to solve complicated queries. Become a T-SQL expert by mastering windowing functions.
- Teaches you how to use all the window functions introduced in 2005 and 2012.
- Provides real-world examples that you can experiment with in your own database.
- Explains how to get the best performance when using windowing functions.
strongKathi Kellenberger/strong is a consultant with Linchpin People. She enjoys writing and speaking on SQL Server topics, having written over two dozen articles, contributed to four books, and presented at many SQL Server events. In her spare time, Kathi enjoys spending time with family and friends, singing and cycling.
Expert T-SQL Window Functions in SQL Server takes you from any level of knowledge of windowing functions and turns you into an expert who can use these powerful functions to solve many T-SQL queries. Replace slow cursors and self-joins with queries that are easy to write and fantastically better performing, all through the magic of window functions. First introduced in SQL Server 2005, window functions came into full blossom with SQL Server 2012. They truly are one of the most notable developments in SQL in a decade, and every developer and DBA can benefit from their expressive power in solving day-to-day business problems. Begin using windowing functions like ROW_NUMBER and LAG, and you will discover more ways to use them every day. You will approach SQL Server queries in a different way, thinking about sets of data instead of individual rows. Your queries will run faster, they will be easier to write, and they will be easier to deconstruct and maintain and enhance in the future. Just knowing and using these functions is not enough. You also need to understand how to tune the queries. Expert T-SQL Window Functions in SQL Server explains clearly how to get the best performance. The book also covers the rare cases when older techniques are the best bet. Stop using cursors and self-joins to solve complicated queries. Become a T-SQL expert by mastering windowing functions.Teaches you how to use all the window functions introduced in 2005 and 2012.Provides real-world examples that you can experiment with in your own database. Explains how to get the best performance when using windowing functions.
Kathi Kellenberger is a consultant with Linchpin People. She enjoys writing and speaking on SQL Server topics, having written over two dozen articles, contributed to four books, and presented at many SQL Server events. In her spare time, Kathi enjoys spending time with family and friends, singing and cycling.
1. Looking through the Window2. Discovering Ranking Functions3. Aggregating with Window Functions4. Tuning for Better Performance5. Calculating Rolling and Running Aggregates6. Adding Frames to the Window7. Peaking at Other Rows8. Understanding Statistical Functions9. The Future of Window Functions
| Erscheint lt. Verlag | 28.3.2015 |
|---|---|
| Zusatzinfo | XVII, 152 p. 91 illus. |
| Verlagsort | Berkeley |
| Sprache | englisch |
| Themenwelt | Informatik ► Datenbanken ► SQL Server |
| ISBN-10 | 1-4842-1103-0 / 1484211030 |
| ISBN-13 | 978-1-4842-1103-8 / 9781484211038 |
| Haben Sie eine Frage zum Produkt? |
PDF (Wasserzeichen)Größe: 6,6 MB
DRM: Digitales Wasserzeichen
Dieses eBook enthält ein digitales Wasserzeichen und ist damit für Sie personalisiert. Bei einer missbräuchlichen Weitergabe des eBooks an Dritte ist eine Rückverfolgung an die Quelle möglich.
Dateiformat: PDF (Portable Document Format)
Mit einem festen Seitenlayout eignet sich die PDF besonders für Fachbücher mit Spalten, Tabellen und Abbildungen. Eine PDF kann auf fast allen Geräten angezeigt werden, ist aber für kleine Displays (Smartphone, eReader) nur eingeschränkt geeignet.
Systemvoraussetzungen:
PC/Mac: Mit einem PC oder Mac können Sie dieses eBook lesen. Sie benötigen dafür einen PDF-Viewer - z.B. den Adobe Reader oder Adobe Digital Editions.
eReader: Dieses eBook kann mit (fast) allen eBook-Readern gelesen werden. Mit dem amazon-Kindle ist es aber nicht kompatibel.
Smartphone/Tablet: Egal ob Apple oder Android, dieses eBook können Sie lesen. Sie benötigen dafür einen PDF-Viewer - z.B. die kostenlose Adobe Digital Editions-App.
Buying eBooks from abroad
For tax law reasons we can sell eBooks just within Germany and Switzerland. Regrettably we cannot fulfill eBook-orders from other countries.
aus dem Bereich
