"Oracle" Oracledba7 SQL Access Advisor

Source: Internet
Author: User

You find, the execution time of reports in your Datawarehouse

Application is significantly high. You suspect the lack of indexes to

Being the reason for the degradation in performance. which advisory Comp

Onent would you refer to, in order to determine the appropriate index

Es?

A. Memory Advisor

B. Segment Advisor

C. SQL Access Advisor

D. Automatic Workload Repository (AWR)

E. Automatic Database Diagnostic Monitor (ADDM)

Answer:c

You find that the execution report time in your Data warehouse is very slow, and you suspect that you are missing the appropriate index.

You can use SQL Access Advisor(SQL visit guide)

SQL Access Guidance: Address scenario issues and determine the best data access paths (such as indexes and manifested view

Figure). Manifested View = materialized attempt

A materialized view is a database pair image that includes a query result, which is a local copy of the remote data.

Or to generate a summary table based on the sum of the data tables. Materialized views store data based on remote tables, or you can

To be called a snapshot.

"Oracle" Oracledba7 SQL Access Advisor

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