在SQL SERVER中,声明并创建以下存储过程,正确调用该存储过程的的语句是()。CREATE PROCEDURE PRO@passNum int OUTPUT, @passPoint int=60 ASSelect @passNum=count(*) From stuTable Where point >@passPoint GO
A.Declare @sum intEXEC PRO @passNum,70
B.Declare @sum intEXEC PRO @sum output,70
C.Declare @sum intEXEC PRO @sum output
D.EXEC PRO 70