SQL Server Internals Crafted for the love ♥ of SQL Server iKosmik
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SQL Server Internals
Crafted for the love ♥ of SQL Server
iKosmik
SQL SERVER
STORAGE ENGINE
RELATIONAL ENGINE
iKosmik
Our focus in this presentation will be the
Relational Engine
SQL SERVER RELATIONAL ENGINE
SQL Manager is the component at the heart
of SQL Server
SQL Manager
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T-SQL Execution
Query Execution
Open Data Services (ODS)Passes the query results to ODS for formatting it
into TDS messages
SQL Manager
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T-SQL Execution
Query Execution
Open Data Services (ODS)
Does stuff like mathematical calculations,
filtering
SQL Manager
Expression Service
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T-SQL Execution
Query Execution
Open Data Services (ODS)
Handles * Data definition statements like CREATE VIEW
* System tables This is more a part of the Storage Engine, than the Relational Engine
SQL Manager
Expression Service
Catalog Services
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T-SQL Execution
Query Execution
Open Data Services (ODS)
* SQL Server scheduler * Assigns fibers and threads * Helps SQL Server load balance * Helps prevent thrashing
SQL Manager
Expression Service
Catalog Services User Mode Scheduler (UMS)
iKosmik
Happy DBA’ing!
See you soon with another interesting crucial SQL Server concept!
Until then …
iKosmik
http://www.sqlserverapp.com/
Referenced from https://msdn.microsoft.com/en-us/library/
aa226174(v=sql.70).aspx
iKosmik
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