- August 12–22: Online Training (EU shift)
- Enrollment
- FOSDEM Impressions
- June 8–18: Online Training (US shift)
- Non-monetary micro sponsoring
- November 11-12 in Frankfurt am Main
- Online-Training in July and August
- Oracle + PostgreSQL
- Party time
- PostgreSQL Performance Event
- SQL Server Performance Kurs in Stuttgart
- SQL Server performance training in London
- Shipping Terms
- The two top performance problems caused by ORM tools
- Top Tweets January 2013
- Training Survey
- Training and Conference Dates
- Use The Index, Luke
- Ask
- Consulting
2011-09-28Covering Index
An index, when used for an index-only scan.
Links
Book-Section: Index-Only Scan: Avoiding Table Access
Glossary: Index-Only Scan — A better name for Covering Index
About the Author
As an author, trainer, and coach Markus Winand specializes in helping developers cope with SQL performance issues. He also published the book SQL Performance Explained and tweets his best performance tips via @SQLPerfTips.http://winand.at/
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