Combine two different unrelated SQL queries( returning single column results) into one query result with two columns

Question

I have two sql queries. In first I am returing total marks obtained and in other i am returning maximum marks . Now i want to combine both in single query for the purpose of ma

Answer 1

    ;WITH    CTE1 ( MarksObtained )
              AS ( SELECT   SUM(MarksObtained) AS MarksObtained
                   FROM     tbAnswers
                   WHERE    QID IN ( SELECT QID
                                     FROM   tbQuestions
                                     WHERE  ExamID = 2 )
                 ),
            CTE2 ( MaxMarks )
              AS ( SELECT   SUM(Marks) AS MaxMarks
                   FROM     tbQuestions
                   WHERE    ExamID = 2
                 )
        SELECT  MaxMarks,MarksObtained
        FROM    CTE1 ,
                CTE2