单选题In one of your online transaction processing (OLTP) applications, most users frequently modify the values, including the key values, of the application tables. Some users generate application reports by using multiple application tables. What is the be

题目
单选题
In one of your online transaction processing (OLTP) applications, most users frequently modify the values, including the key values, of the application tables. Some users generate application reports by using multiple application tables. What is the best table structure that you can use to gain optimal performance?()
A

 Heap table

B

 Object table

C

 External table

D

 Clustered table

E

 Global temporary table

F

 Index-organized table (IOT)

如果没有搜索结果或未解决您的问题,请直接 联系老师 获取答案。
相似问题和答案

第1题:

If DB2 detects a deadlock between application A and application B (each waiting for a lock held by the other one), what action will DB2 take?()

  • A、Rollback the transaction in both applications.
  • B、Rollback the transaction in one of the two applications.
  • C、Decrease the lock timeout value for both applications, thereby causing a lock timeout situation.
  • D、Send a message to let the administrator know of the situation and decide which application or applications should be terminated.

正确答案:B

第2题:

In one of your online transaction processing (OLTP) applications, most users frequently modify the values, including the key values, of the application tables. Some users generate application reports by using multiple application tables.  What is the best table structure that you can use to gain optimal performance?()

  • A、heap table
  • B、object table
  • C、external table
  • D、clustered table
  • E、global temporary table
  • F、index-organized table (IOT)

正确答案:A

第3题:

Your database supports an online transaction processing (OLTP) application.The application is undergoing some major schema changes, such as addition of new indexes and materialized views.You want to check the impact of these changes on workload performance.What should you use to achieve this?()

A. Database replay

B. SQL Tuning Advisor

C. SQL Access Advisor

D. SQL Performance Analyzer

E. Automatic Workload Repository compare reports


参考答案:E

第4题:

You want to enable users of a Web application to modify the Web application's UI and behavior. These modifications must be maintained at the user level so that when users return to the Web application, the changes are still in effect. You need to achieve this goal by using the minimum amount of custom code. What should you do?()

  • A、Persist control data by using view state.
  • B、Use Web Part controls.
  • C、Maintain a profile for each user.
  • D、Enable session state on the Web application.

正确答案:B

第5题:

In one of your online transaction processing (OLTP) applications, users are manipulating and querying a database table simultaneously. From the Segment Advisor, you find that one of the tables is highly fragmented and you want to shrink the table immediately without affecting the currently active queries.  Which option would you use with the ALTER TABLE command to achieve this objective?()

  • A、REBUILD
  • B、CASCADE
  • C、TRUNCATE
  • D、ROW MOVEMENT
  • E、SHRINK SPACE COMPACT
  • F、SHRINK SPACE CASCADE

正确答案:E

第6题:

In one of your online transaction processing (OLTP) applications, most users frequently modify the values, including the key values, of the application tables. Some users generate application reports by using multiple application tables.  What is the best table structure that you can use to gain optimal performance?()

  • A、heap table
  • B、object table
  • C、external table
  • D、clustered table
  • E、global temporary table
  • F、index­organized table (IOT)

正确答案:A

第7题:

Your database supports an online transaction processing (OLTP) application. The application is undergoing some major schema changes, such as addition of new indexes and materialized views. You want to check the impact of these changes on workload performance. What should you use to achieve this?()

  • A、Database replay
  • B、SQL Tuning Advisor
  • C、SQL Access Advisor
  • D、SQL Performance Analyzer
  • E、Automatic Workload Repository compare reports

正确答案:E

第8题:

You are the administrator of a database that contains 64 lookup tables. These tables store static data that should not change. However, users report that some of this data is being changed. You need to prevent users from modifying the data.

You want to minimize changes to your security model and to your database applications. How should you modify the database?

A.Create a filegroup named LOOKUP. Move the lookup tables to this filegroup. Select the read only check box for the filegroup.

B.Create a database role named datamodifier. Grant SELECT permissions to the datamodifier role. Add all users to the role.

C.Deny INSERT, UPDATE, and DELETE permissions for all users. Create stored procedures that modify data in all tables except lookup tables. Require users to modify data through these stored procedures.

D.Create a view of the lookup tables. Use the view to allow users access to the lookup tables.


正确答案:A
解析:Explanation:SQLServer2000allowsfilegroupsotherthantheprimaryfilegrouptobemarkedasreadonly.Afilegroupthatismarkedread-onlycannotbemodified.Tablesthatmustnotbemodifiedcanbeplacedonafilegroupthatcanthenbemarkasread-only.Thiswillpreventsaccidentalupdates.IncorrectAnswers:B:Thissolutioneffectivelypermitsalluserstomodifyanytableinthedatabase,astheywouldallhaveSELECTpermissionstothedatabase.C:ThissolutionwilleffectivelypreventallusersfrombeingabletoperformingthesetasksonalltablesinthedatabaseastheyaredeniedpermissionstorunINSERT,UPDATE,orDELETEstatementsagainstthedatabase.Abettersolutionwouldbetoapplythedenypermissionsatthetablelevelofthelookuptables.Thiswould,however,requireunnecessaryadministrativetime.D:Viewsarevirtualtablesthatareusedtofiltertablesorrowsthattheusersshouldnothaveaccessto,however,iftheusershaveaccesstothebasetables,theycanstillrunINSERT,UPDATE,andDELETEstatementsagainstthebasetable.

第9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?()

  • A、hash clusters
  • B、index clusters
  • C、partitioned tables
  • D、index­organized table (IOT)

正确答案:B

第10题:

You develop a Web application. Your application contains two settings in the Web.config file. You deploy your application to production. You need to modify the application settings in the production environment without manually editing the XML markup in the Web.config file. What should you do? ()

  • A、Modify the application settings by using the Web Site Administration Tool.
  • B、Modify the application settings by using the Visual Studio property page editor for the project.
  • C、Modify the application settings by using the resource editor.
  • D、Modify the application settings by using the Visual Studio start options editor.

正确答案:A

更多相关问题