Getting the above average student from database

Question

I\'ve created a view that contains:

 student_full_name    subject_code    result
 Jennifer Higgins     CS1234          81
 Jennifer Higgins     CS1235                


        

Answer 1

Every problem as a solution, I created a table

CREATE TABLE STUD
(SNAME varchar(20),
 SCODE NUMBER    PRIMARY KEY,
 MARKS NUMBER(4,2))

Inserted values

SNAME   SCODE   MARKS
--------------------
SAM     1001    90
VAS     1001    80
SAM     1002    60
ANAND   1001    80
VAS     1002    70
ANAND   1002    50

Query is

SELECT SNAME,AVG(MARKS) FROM STUD GROUP BY SNAME HAVING AVG(MARKS)>=
(SELECT MAX(MARKS ) FROM STUD WHERE SNAME='VAS')