SQL Server 2014 Hidden Treasures Denis Reznik Microsoft SQL Server MVP Director of R&D at Intapp Kyiv

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About me Denis Reznik Kyiv, Ukraine Director of R&D at Intapp Kyiv Microsoft MVP Leader of Kyiv SQL Server User Group Co-author of “SQL Server MVP Deep Dives 2” Community Enthusiast

About SQL Server 2014 Killer Features Hidden Features Updatable Columnstore Indexes Resource Governor for IO Backup Encryption Online Operations Improvements AllwaysOn Improvements Buffer Pool Extensions InMemory OLTP (Hekaton) Hidden Features Cardinality Estimation Improvements Query and Plan Fingerprints Delayed Durability sys.dm_exec_query_profiles TempDB Enhancements

Cardinality Estimation

CARDINALITY

Statistics 1 800 2000 2800 4500 5400 SELECT * FROM Users WHERE Id BETWEEN 2100 AND 2500 1 800 2000 2800 4500 5400

Cardinality Estimation DEMO Cardinality Estimation

Query and Plan Fingerprints

QUERY PROCESSING Parser Algebrizer Optimizator Executor

Query and Plan Fingerprints DEMO Query and Plan Fingerprints

Delayed Durability

Data Modification Buffer Pool Log Buffer Buffer Manager Access Methods Data Cache Log Manager Database File Log Buffer Transaction Log

DEMO Delayed Durability

sys.dm_exec_query_profiles

sys.dm_exec_query_profiles DEMO sys.dm_exec_query_profiles

Tempdb Enhancements

DEMO Tempdb Enhancements

SUMMARY Cardinality Estimation Improvements Query and Plan Fingerprints Delayed Durability sys.dm_exec_query_profiles TempDB Enhancements

Thank You! Denis Reznik @denisreznik denisreznik@live.ru