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What is the primary purpose of creating a materialized view?
What is the primary purpose of creating a materialized view?
- To support mobile computing applications with offline data access
- To enable data synchronization across multiple databases
- To improve query optimization by reducing the number of joins
- To provide a snapshot of data for reporting and analysis (correct)
How does Oracle Database handle a query on a view?
How does Oracle Database handle a query on a view?
- It merges the view and query definitions to construct a new query (correct)
- It uses data synchronization to ensure data consistency across databases
- It uses data replication to retrieve data from multiple sources
- It executes the view definition and then applies the query filter
What is the benefit of using object views in Oracle Database?
What is the benefit of using object views in Oracle Database?
- It supports mobile computing applications with offline data access
- It enables data replication and synchronization across multiple databases
- It allows for prototyping and transitioning to object-oriented applications (correct)
- It improves query optimization by reducing the number of joins
What is the primary difference between a view and a materialized view?
What is the primary difference between a view and a materialized view?
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What is the purpose of the OBJECT IDENTIFIER clause in an object view?
What is the purpose of the OBJECT IDENTIFIER clause in an object view?
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How does an object view differ from a regular view?
How does an object view differ from a regular view?
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What is the benefit of using materialized views in a data warehouse?
What is the benefit of using materialized views in a data warehouse?
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What is the primary use of object types in Oracle Database?
What is the primary use of object types in Oracle Database?
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What is the purpose of creating a view based on multiple tables?
What is the purpose of creating a view based on multiple tables?
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What is the benefit of using views in Oracle Database?
What is the benefit of using views in Oracle Database?
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