单项选择题

Your database is 5GB and contain satable named Sales Hi……

Your database is 5GB and contain satable named Sales History. Sales informationis frequently inserted and updated. You discover that excessive page splitting is occurring. You need to reduce the occurr enceof page splitting in the Sales History table.
Which code segment should you use?（）

A.ALTER DATABASE Sales MODIFY FILE(NAME = Sales dat3, SIZE = 10GB)
B.ALTER INDEXALL ON Sales.Sales History REBUILD WITH (FILLFACTOR = 60)
C.EXEC sys.sp_configure 'fill factor (%)', '60'
D.UPDATE STATISTICS Sales.Sales History(Products) WITH FULLSCAN, NORECOMPUTE

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单项选择题You are a database developer. You plan to design a database solution byusing SQL Server 2008. You are creating adataba seto support the office manager. Your database model has the following structure. The database design has the following business requirements: An employee can be assigned more than one task. Upon completion, thetask is deleted. When a task is deleted, the associated assignment is deleted. When an employee is nolonger available tocomple tea task, theemployee link to the assignment is replaced with a NULL value. You need to implement the business requirements to maintain data integrity. What should you do?（）

A.Create DDL INSERT triggers on the Employee. Task and Assignment entities.
B.Create CHECK constraints on the Task ID and Employee ID attributes in the Assignment entity.
C.Create Foreign Keys constraints on the Task ID and EmployeeID attributes in the Assignment entity. Reference the Task and Employee entities respectively. Specify the appropriate On Delete action.
D.Create Foreign Keys constraints on the Task ID and Employee ID attributes in theTask and Employeeentities respectively. Reference the Assignment entity, and specify the appropriate On Delete action.

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A.nvarchar（100） NULL
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C.nvarchar（100） NOT NULL
D.nvarchar（100） SPARSE NULL

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A.Analysis Services
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