多选题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？（）ACreate a function that returns a list of values that represent the login times for the given user.BCreate a function that returns a list of values that represent the people who have logged more hours than the current user has logged.CCreate a function that returns a numeric value that represents the number of hours that a user has logged for the current day.DCreate a function that returns a numeric value that represents the number of hours that a user has logged for the current month.
多选题
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.
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