多项选择题
You need to create a column that allows you to createa unique constraint. Which two column definitions should you choose?（）
A.nvarchar（100） NULL
B.nvarchar（max） NOT NULL
C.nvarchar（100） NOT NULL
D.nvarchar（100） SPARSE NULL
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多项选择题
You are adatabase solutions architect.Your company plans to develop asolution by using a SQLServer 2008 instance. The solutionhas the following business requirements: Import datafromvarious datasources suchas MicrosoftOffice Excel, Microsoft SQL Server2000, Microsoft SQL Server 2005, and CSV files. Profile the source data before it is imported. Provide collaboration andoffline capabilities to mobile users. Allowmobile users to use heterogeneous data stores. You need to configure the appropriate SQL Server components to accomplish the business requirements. You want to achieve this goal by using the minimum amount of administrative effort. Which two SQL Server components should you use?（）
A.Analysis Services
B.Reporting Services
C.Integration Services
D.Notification Services
E.Microsoft Sync Framework
