15664566
Descrição
Mapa Mental por Parag Gawde, atualizado more than 1 year ago
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Criado por Parag Gawde
mais de 5 anos atrás
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Query Processing
- Parsing
- checks syntax, verifies relation
- checks syntax, verifies relation
- Optimization
- determines the most efficient way to
execute a given query by considering the
possible query plans
- determines the most efficient way to
execute a given query by considering the
possible query plans
- Translation
- Translate the query into its internal form
- Further, translates into relational algebra.
- Further, translates into relational algebra.
- Translate the query into its internal form
- Evaluation
- In this, the query evaluation engine
takes a query evaluation plan,
executes that plan and returns the
answer to the query.
- In this, the query evaluation engine
takes a query evaluation plan,
executes that plan and returns the
answer to the query.
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