Consider the following relations: Student Table Roll_No Student_Name 1 Raj 2…

Consider the following relations:

Student Table

Performance Table

Consider the following SQL query.

SELECT S.Student_Name, sum(P.Marks)
FROM Student S, Performance P
WHERE S.Roll_No = P.Roll_No
GROUP BY S.Student_Name

The number of rows that will be returned by the SQL query is _____________.