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What is partitioning and why is it useful

Assignment Help Database Management System
Reference no: EM13843357

Q1. What is partitioning? Why is it useful? Give two methods of partitioning.

Q2. Manage workloads,

Mark, update, and remove recommendations.

Perform a quick tune using a single SQL statement.

Show how to make a materialized view fast refreshable.

Show how to change a materialized view such that general query rewrite is possible.

Resource:

[1] 17 SQL Access Advisor. (n.d.).Retrieved September 26, 2015, from https://docs.oracle.com/cd/B19306_01/server.102/b14211/advisor.htm#CHDEEBAI.

Q3. Static views are also known as data dictionary because they change infrequently, i.e., when there is a change to the data dictionary. There are three types of static views [1]:

Static Views

DBA_ view: displays all relevant information in the entire database. This view is inteded for administrators.

ALL_ view: displays all the information accessible to the current user, including information from the schema of the current user and information from objects in other schemas.

USER_ view: displays all the information from the schema of the current user.

Resource:

[1] Oracle views - Static Data Dictionary Views & Dynamic Performance Views - Take hold of IT technology trends - learn, practice, troubleshoot, blog. (n.d.).Retrieved September 22, 2015, from https://www.doxer.org/oracle-views-static-data-dictionary-views-dynamic-performance-views/.

Reference no: EM13843357

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