count

(1)下面___组命令,将变量count值赋值为1。A.Declare @ count       B.Dim count=1Select @ count=1          Select count =1C.Declare count          D.Dim @countSelect count=1           Select @count=1 

(1)下面___组命令,将变量count值赋值为1。A.Declare @ count       B.Dim count=1Select @ count=1          Select count =1C.Declare count          D.Dim @countSelect count=1           Select @count=1 A