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

Well, since the queries are unrelated, you can just throw them into the select:

SELECT
   (
      select SUM(MarksObtained)  
      from tbAnswers where QID IN (
          Select QID from tbQuestions where ExamID = 2
      )
   ) as MarksObtained,
   (
       Select SUM(Marks)   
       from tbQuestions where ExamID = 2
   ) as MaxMarks