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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
7839
Karuna
PRESIDENT
5000
20
7902
Ashwin
7905
Ashwini
4000
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:
AVGSAL
2987.5
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Using Column aliases Example: To print column names as NAME and ANNUAL SALARY SELECT ENAME "NAME", SAL*12 "ANNUAL SALARY" FROM EMP;
List and also explain the dissimilar stages of DDLC ?
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What is Nested Queries explain in details? Nested Queries - A SELECT query could have subquery(s) in it. While a SELECT query having another SELECT query in it, is known as n
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