user tables
view segment
table segment
data dictionary
object segment
performance tables
第1题:
While designing the database for one of your online transaction processing (OLTP) applications, you want to achieve the following: a) high availability of data b) faster primary key access to the table data c) compact storage for the table Which type of tables would you use to achieve these objectives?()
第2题:
The customer and order tables are often used in joins, thereby resulting in complex queries. You created views to simplify the writing of queries. These views are stored in().
第3题:
You are responsible for maintaining a SQL Server 2005 database. Business analysts in the company routinely use a view named v CustomerSales to join the Customers and Sales tables in the database. They use the view to aggregate total sales by customer by month. You need to increase the performance of the view. What should you do?()
第4题:
In your datawarehousing application, you generate reports frequently. The data is static in the tables being used to generate reports. You are currently using joins, resulting in a large performance overhead. What kind of database structure would you use to reduce the response time of the query?()
第5题:
You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was created.) How do you obtain the definition of the view?()
第6题:
Which statements are correct about temporary tables()
第7题:
Which two statements about views are true?()
第8题:
Which statements listed below describe the data dictionary views() 1) These are stored in the SYSTEM tablespace. 2) These are the based on the virtual tables. 3) These are owned by the SYS user. 4) These can be queried by a normal user only if O7_DICTIONARY_ACCESSIBILTY parameter is set to TRUE. 5) The V$FIXED_TABLE view can be queried to list the names of these views.
第9题:
Which two statements are true about simple views?()
第10题:
Which three statements are correct about temporary tables?()