多项选择题
TestKing.com has a SQL Server 2005 computer. You have been assigned the task of retrieving information about a user who is currently logged in. You need to create a function that returns scalar information about the activity time for a particular user.
What are two possible ways to achieve this goal？（）
A.Create a function that returns a list of values that represent the login times for the given user.
B.Create a function that returns a list of values that represent the people who have logged more hours than the current user has logged.
C.Create a function that returns a numeric value that represents the number of hours that a user has logged for the current day.
D.Create a function that returns a numeric value that represents the number of hours that a user has logged for the current month.
相关考题
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单项选择题
You are responsible for managing the database schema for an order entry application in a SQL Server 2005 database. After a design review， a member of the development staff asks you to add a new column named CommissionRate to the Product table. Because the actual commission rates for all products are not known at this time， each product has a default commission rate of 12 percent. The rate can be modified as necessary. You add the new column. You need to configure the table to assign the default value as efficiently as possible. What should you do？（）
A.Create an INSERT trigger to assign the default value to each item in the table.
B.Create a CHECK constraint to validate the data and to assign the default value to each item in the table.
C.Create an UPDATE trigger to update the default value for each new item in the table.
D.Create a DEFAULT constraint to assign the default value specifying the WITH VALUES argument. -
单项选择题
销售部和财务部在两栋不同的楼里。两个部门由一个2兆位的网络连接。并且都使用SQLServer2005。销售部在一个名为DB1的数据库里记录所有的销售事务。DB1包含380张表，大小为10GB。财务部为做报表可以只读方式访问DB1里的4张表。财务部会全天进行查询并需要尽可能最新的数据。财务部的用户告诉你报表执行非常缓慢。为优化网络容量，你的部门决定为财务部提供此四张表的副本。现在，你需要提供这些表的副本。因此，你想用一种占最小网络带宽的复制法达成此目标，该怎样做？（）
A.将DB1镜像到财务部，以高有效性模式配置镜像
B.建立DB1的每日事务日志传输到财务部
C.建立每日快照复制到财务部，定义一个只包含这四张表的发布
D.建立事务复制到财务部，定义一个只包含此四张表的发布 -
单项选择题
You work with a database named DB1， which is located on a SQL Server 2005 computer. You discover that a table scan on Table1 in DB1 causes a slow query. Table1 is a very large table that is used frequently. You ascertain that the query contains the following statement. SELECT col1， col2 FROM table1 WHERE col3 = You need to provide maximum query performance. Table1 must remain available to users. What should you do？（）
A.Update all statistics on Table1 in DB1.
B.Use the CREATE STATISTICS statement in DB1 to create missing statistics on col3of Table1.
C.Set the priority boost server option to 1.
D.Execute the following statement.USE DB1GOCREATE INDEX index1 ON table1（col3）INCLUDE（col1， col2） WITH （ONLINE = ON）GO
