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SQL Server Query Processing Flow - Coggle Diagram
SQL Server Query Processing Flow
Query Submission
User or application submits an SQL query.
SQL Parser
Checks query syntax and creates a parse tree
Query Optimization
Generates execution plans and selects the most efficient one
Query Execution
Sent to Query Executor.
Interacts with:
Storage Engine (data retrieval/modification).
Buffer Manager (manages memory cache).
Lock Manager (concurrency control).
Data Retrieval/Modification
Result Presentation
Transaction Management
Query Completion
Releases resources
Returns query results (if any) to the user/application
Ensures the query executes within a transaction.
Decides to commit or rollback the transaction.
Presents query results to the user/application.
Storage Engine reads/writes data.