单项选择题
A.A primary XML index should be created on the XML column.
B.Statistics should be created on the nvarchar columns.
C.A view should be created, and only the four columns that the query utilizes are contained by a view.
D.A composite index should be created on the three nvarchar columns, and INCLUDE should be specified for the XML column.
单项选择题 You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions, monitoring the database server, and design deployment. In the company, you major job is the deployment, maintenance and support of Microsoft SQL Server 2005. You work as the database administrator for your company. You find a problem that there are three reports which are running slowly. And through detailed analysis, you conclude that no error messages are generated from these reports. Not only the indexing strategy but also the status of the current indexes is tested by you. You confirm that the slow performance of the financial reports is not caused by it. Since you are the technical support, you are required to find out which statement is causing the slow performance. Which action should be performed first?()
单项选择题 You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions, monitoring the database server, and design deployment. In the company, you major job is the deployment, maintenance and support of Microsoft SQL Server 2005. You work as a database administrator for your company. The users report the slow performance of a SQL Server 2005 application. You are required to identify the queries which perform slowly because of blocking. Which action should you perform?()
单项选择题 You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions, monitoring the database server, and design deployment. In the company, you major job is the deployment, maintenance and support of Microsoft SQL Server 2005. You work as a database administrator for your company. You utilize the SP:Recompile event class to run SQL Server Profiler. You find that a great amount of recompiles occurring. The possible causes of the large number of recompiles should be identified. From the flowing four options, which one is the most possible cause of the problem?()