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Presentation about hidden treasures inside SQL Server 2014. It was 30 min presentation about 4 features: Cardinality Estimator, Query and Plan Fingerprints, Delayed Durability and TempDB performance.
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SQL Server 2014 for DevelopersDenis ReznikMicrosoft MVP (SQL Server)Director of R&D at TFG an Intapp Company
• Denis Reznik• Kiev, Ukraine• Director of R&D at TFG an Intapp Company• Microsoft MVP• Leader of Kyiv SQL Server User Group• Co-author of “SQL Server MVP Deep Dives
vol. 2”• Community enthusiast
ABOUT SPEAKER
SQL Server 2014 Hidden Features
SQL Server 2014 Killer Features
• Updatable Columnstore Indexes• Resource Governor for IO• Backup Encryption• Online Operations Improvements• AllwaysOn Improvements• Buffer Pool Extensions• InMemory OLTP (Hekaton)
KILLER FEATURES
• Cardinality Estimation Improvements• Query and Plan Fingerprints• Delayed Durability• TempDB Enhancements
HIDDEN FEATURES
CARDINALITY ESTIMATION
CARDINALITY
500
1000
10
1200
800
1 800 2000 2800 4500 5400
SELECT * FROM UsersWHERE Id BETWEEN 2100 AND 2500
STATISTICS
Cardinality Estimation
DEMO
QUERY AND PLAN FINGERPRINTS
QUERY PROCESSING
Parser Algebrizer Optimizator Executor
Query and Plan Fingerprints
DEMO
DELAYED DURABILITY
Buffer PoolData Cache
Database File
Access Methods
Buffer Manager
Transaction Log
Log Manager
Log Buffer
Delayed Durability
DEMO
TEMPDB ENHANCEMENTS
TempDB Enhancements
DEMO
• Cardinality Estimation Improvements• Query and Plan Fingerprints• Delayed Durability• TempDB Enhancements
SUMMARY
THANK YOU!
http://reznik.uneta.com.ua @[email protected]://www.facebook.com/denis.reznik.5https://www.linkedin.com/pub/denis-reznik/3/502/234
Thank You!
