Find the employee name,salary,department number and average, Database Management System

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Example-Find the employee name, salary, department number and average salary of his/her department, for those employees whose salary is more than the average salary of that department.

EMPNO	ENAME	JOB	SAL	DEPTNO
7566	Nirmal	MANAGER	2975	10
7788	Kailash	ANALYST	3000	10
7839	Karuna	PRESIDENT	5000	20
7902	Ashwin	ANALYST	3000	20
7905	Ashwini	MANAGER	4000	20

SELECT A.ENAME, A.SAL, A.DEPTNO, B.AVGSAL

FROM EMP A, ( SELECT DEPTNO, AVG (SAL) AVGSAL

FROM EMP

GROUP BY DEPTNO) B

WHERE A.DEPTNO=B.DEPTNO AND A.SAL> B. AVGSAL;

Output:

ENAME	SAL	DEPTNO	AVGSAL
Kailash	3000	10	2987.5
Karuna	5000	20	4000

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