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RDBMS - Sql Processing (Engine) 27 pages

(Access|Scan) (Paths|Method)
(Query Plan) Cost
Execution
Data Access Path - Full Table Scan
Query Optimizer Goal
Hard Parse (Library cache miss)
Logical Plan (Query)
Relational Operator (Data operations|Execution Plan Steps)
Query Optimizer (Query Optimization)
SQL Parser
How to read a physical plan (Execution Plan | Execution Tree)
(Physical|Execution) Plan
Plan
How to read a query plan ?
Query Plan
Query Rewrite
The Query Transformer
Result Set
Row Operation
Row Set
Row source generator
(Set|Set-based) Operation
Soft parse (Library cache hit)
SQL processing (Sql Compiler)
Optimizer Statistics
Query Plan (Step|Operation)
SQL Tree

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Sql Engine - Plan

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When a request is invoked, the optimizer optimizes the logical plan and generates a physical plan for efficient execution.

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Sql Engine - Relational Operator (Data operations|Execution Plan Steps)
SQL Engine - Query Rewrite

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Sql Engine - Logical Plan (Query)
Sql Engine - (Physical|Execution) Plan

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SQL Engine - Query Rewrite

query rewrite is a query performance technique enabled by the query transformer that rewrites the original query to use materialized view instead. As the materialized view (a view stored in a table fashion)...

Sql Engine - Relational Operator (Data operations|Execution Plan Steps)

Relational operator They are the step of a plan (execution parse tree). List read () filter, sort, join aggregation .... Type of operation using the work area: SORT, HASH JOIN,...

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