Q1)Display employee who are not in sales dept?sol):Display all
columns from emp.Condition Based on dname from Dept.Relation field
is deptno(for emp,dept tables). --> SELECT * FROM empWHERE
deptno NOT IN(SELECT deptno FROM dept WHERE
dname='SALES');-----------------------------------------------------Q2)Display
the dept name where no employee is working.?sol):Display dname from
dept.condition based on deptno from emp.Relation field is
deptno(for emp,dept tables).--> SELECT dname FROM deptWHERE
deptno NOT IN(SELECT deptno FROM
emp);------------------------------------------------------Q3)Display
those employee who joined in the year 81 and his dept name keeps
'5' characters?sol):Display all colums from emp table.Condition
based on dname from dept andhiredate from emp.Related field is
deptno(for emp,dept tables.).--> SELECT * FROM empWHERE deptno
IN(SELECT deptno FROM deptWHERE dname LIKE '_____')AND hiredate
LIKE
'%81';----------------------------------------------------------Q4)Delete
those employees whose location is 'NEW YORK'
or'CHICAGO'?sol):Delete records from emp.Condition based on deptno
from dept table.Related field is deptno (For emp,dept
tables.)--> DELETE FROM empWHERE deptno IN(SELECT deptno FROM
deptWHERE loc IN('CHICAGO','NEW
YORK'));------------------------------------------------------------Q5)Display
the dedparment name of those employees whose salary keeps '4'
digits.?sol):Display dname from dept.Condtion based on sal from
emp.Related field is deptno(for emp,dept tablesd.)--> SELECT
dname FROM dept WHERE deptno IN(SELECT deptno FROM empWHERE sal
LIKE
'___');-----------------------------------------------------------Q6)Increment
salary by 10% for those employees whose name isstarts with alphabet
'J' and his dept name ends with alphabet 's'?sol):display
ename,sal,deptno from emp.Condition based on dname from dept and
ename from emp.Related field is deptno(for dept,emp tables.)-->
SELECT ename,sal+(sal * 0.1) IncrSal,deptno FROM empWHERE deptno IN
(SELECT deptno FROM deptWHERE dname LIKE '%S')AND ename LIKE
'J%';--------------------------------------------------------------Q7)Display
employee who have any employee under them?sol):Displya all fields
from emp.Condition based on mgr from empRelated field is empno for
two emp tables.--> SELECT * FROM empWHERE empno IN(SELECT mgr
FROM emp WHERE mgr IS NOT
NULL);------------------------------------------------------------Q8)
Display employee who don't have any employee under
them?sol):Displya all fields from emp.Condition based on mgr from
empRelated field is empno for two emp tables.--> SELECT * FROM
empWHERE empno NOT IN(SELECT mgr FROM emp WHERE mgr IS NOT
NULL);-----------------------------------------------------------Q9)Delete
those dept where JONES and KING are working?sol):Delete deptno from
deptCondition based on ename from emp.Related field is deptno(for
dept,emp tables).--> DELETE FROM deptWHERE deptno IN(SELECT
deptno FROM empWHERE ename
IN('JONES','KING'));------------------------------------------------------------Q10)Delete
those employee who are not eligible for commision and their mgr
name is 'JONES'?sol):Delete from empCondition Based On comm and
mgrRelated field empno--> DELETE FROM empWHERE comm IS NULL AND
mgr IN(SELECT empno FROM emp WHERE ename ='JONES');
-------------------------------------------------------------Q11)Display
those employees whose dept name gives more than two
words?sol):Display all columns in employee.Condition is based on
loc in dept.Related field is deptno (for dept,emp tables.)-->
SELECT * FROM emp WHERE deptno IN(SELECT deptno FROM deptWHERE loc
LIKE '%
%');-------------------------------------------------------------OUT
PUT FROM SQL PROMPT:========================SQL> Select * from
emp 2 where deptno NOT IN(select deptno from dept 3 where
dname='SALES'); EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO------
---------- --------- ------ --------- ------ ------ ------ 7369
SMITH CLERK 7902 17-DEC-80 800 20 7566 JONES MANAGER 7839 02-APR-81
2975 20 7782 CLARK MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT
ANALYST 7566 09-DEC-82 3000 20 7839 KING PRESIDENT 17-NOV-81 5000
10 7876 ADAMS CLERK 7788 12-JAN-83 1100 20 7902 FORD ANALYST 7566
03-DEC-81 3000 20 7934 MILLER CLERK 7782 23-JAN-82 1300 108 rows
selected.SQL> SELECT dname FROM dept 2 WHERE deptno NOT
IN(SELECT deptno FROM emp); DNAME--------------OPERATIONSSQL>
SELECT * FROM emp 2 WHERE deptno IN(SELECT deptno FROM dept 3 WHERE
dname LIKE '_____') 4 AND hiredate LIKE '%81'; EMPNO ENAME JOB MGR
HIREDATE SAL COMM DEPTNO------ ---------- --------- ------
--------- ------ ------ ------ 7499 ALLEN SALESMAN 7698 20-FEB-81
1600 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 7654
MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 7698 BLAKE MANAGER 7839
01-MAY-81 2850 30 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7900 JAMES CLERK 7698 03-DEC-81 950 306 rows selected.SQL>
DELETE FROM emp 2 WHERE deptno IN(SELECT deptno FROM dept 3 WHERE
loc IN('CHICAGO','NEW YORK'));9 rows deleted.SQL> @e EMPNO ENAME
JOB MGR HIREDATE SAL COMM DEPTNO------ ---------- --------- ------
--------- ------ ------ ------ 7369 SMITH CLERK 7902 17-DEC-80 800
20 7566 JONES MANAGER 7839 02-APR-81 2975 20 7788 SCOTT ANALYST
7566 09-DEC-82 3000 20 7876 ADAMS CLERK 7788 12-JAN-83 1100 20 7902
FORD ANALYST 7566 03-DEC-81 3000 20SQL> rollback;Rollback
complete.SQL> @e EMPNO ENAME JOB MGR HIREDATE SAL COMM
DEPTNO------ ---------- --------- ------ --------- ------ ------
------ 7369 SMITH CLERK 7902 17-DEC-80 800 20 7499 ALLEN SALESMAN
7698 20-FEB-81 1600 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250
500 30 7566 JONES MANAGER 7839 02-APR-81 2975 20 7654 MARTIN
SALESMAN 7698 28-SEP-81 1250 1400 30 7698 BLAKE MANAGER 7839
01-MAY-81 2850 30 7782 CLARK MANAGER 7839 09-JUN-81 2450 10 7788
SCOTT ANALYST 7566 09-DEC-82 3000 20 7839 KING PRESIDENT 17-NOV-81
5000 10 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 7876 ADAMS
CLERK 7788 12-JAN-83 1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20 7934 MILLER CLERK 7782
23-JAN-82 1300 1014 rows selected.SQL> SELECT dname FROM dept 2
WHERE deptno IN(SELECT deptno FROM emp 3 WHERE sal LIKE
'___');DNAME--------------RESEARCHSALESSQL> SELECT
ename,sal+(sal * 0.1) IncrSal,deptno FROM emp 2 WHERE deptno IN
(SELECT deptno FROM dept 3 WHERE dname LIKE '%s') 4 AND ename LIKE
'J%';no rows selectedSQL> SELECT ename,sal+(sal * 0.1)
IncrSal,deptno FROM emp 2 WHERE deptno IN (SELECT deptno FROM dept
3 WHERE dname LIKE '%S') 4 AND ename LIKE 'J%';ENAME INCRSAL
DEPTNO---------- ------- ------JAMES 1045 30SQL> SELECT * FROM
emp 2 WHERE empno IN(SELECT mgr FROM emp); EMPNO ENAME JOB MGR
HIREDATE SAL COMM DEPTNO------ ---------- --------- ------
--------- ------ ------ ------ 7566 JONES MANAGER 7839 02-APR-81
2975 20 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782 CLARK
MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT ANALYST 7566 09-DEC-82
3000 20 7839 KING PRESIDENT 17-NOV-81 5000 10 7902 FORD ANALYST
7566 03-DEC-81 3000 206 rows selected.SQL> SELECT * FROM emp 2
WHERE empno IN(SELECT mgr FROM emp 3 WHERE mgr IS NOT NULL); EMPNO
ENAME JOB MGR HIREDATE SAL COMM DEPTNO------ ---------- ---------
------ --------- ------ ------ ------ 7566 JONES MANAGER 7839
02-APR-81 2975 20 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782
CLARK MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT ANALYST 7566
09-DEC-82 3000 20 7839 KING PRESIDENT 17-NOV-81 5000 10 7902 FORD
ANALYST 7566 03-DEC-81 3000 206 rows selected.SQL> SELECT * FROM
emp 2 WHERE empno NOT IN(SELECT mgr FROM emp 3 WHERE mgr IS NOT
NULL); EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO------
---------- --------- ------ --------- ------ ------ ------ 7369
SMITH CLERK 7902 17-DEC-80 800 20 7499 ALLEN SALESMAN 7698
20-FEB-81 1600 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 7844 TURNER
SALESMAN 7698 08-SEP-81 1500 0 30 7876 ADAMS CLERK 7788 12-JAN-83
1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30 7934 MILLER CLERK
7782 23-JAN-82 1300 108 rows selected.SQL> DELETE FROM dept 2
WHERE deptno IN(SELECT deptno FROM emp 3 WHERE ename
IN('JONES','KING'));2 rows deleted.SQL> @dDEPTNO DNAME LOC------
-------------- ------------- 30 SALES CHICAGO 40 OPERATIONS
BOSTONSQL> rollback;Rollback complete.SQL> @dDEPTNO DNAME
LOC------ -------------- ------------- 10 ACCOUNTING NEW YORK 20
RESEARCH DALLAS 30 SALES CHICAGO 40 OPERATIONS BOSTONSQL> DELETE
FROM emp 2 WHERE comm IS NULL 3 AND mgr IN(SELECT empno FROM emp 4
WHERE ename ='JONES');2 rows deleted.SQL> @e EMPNO ENAME JOB MGR
HIREDATE SAL COMM DEPTNO------ ---------- --------- ------
--------- ------ ------ ------ 7369 SMITH CLERK 7902 17-DEC-80 800
20 7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 7521 WARD
SALESMAN 7698 22-FEB-81 1250 500 30 7566 JONES MANAGER 7839
02-APR-81 2975 20 7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782 CLARK MANAGER 7839
09-JUN-81 2450 10 7839 KING PRESIDENT 17-NOV-81 5000 10 7844 TURNER
SALESMAN 7698 08-SEP-81 1500 0 30 7876 ADAMS CLERK 7788 12-JAN-83
1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30 7934 MILLER CLERK
7782 23-JAN-82 1300 1012 rows selected.SQL> rollback;Rollback
complete.SQL> SELECT * FROM emp 2 WHERE deptno IN(SELECT deptno
FROM dept 3 WHERE dname LIKE '% %');no rows selectedSQL> SELECT
* FROM emp 2 WHERE deptno IN(SELECT deptno FROM dept 3 WHERE loc
LIKE '% %'); EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO------
---------- --------- ------ --------- ------ ------ ------ 7782
CLARK MANAGER 7839 09-JUN-81 2450 10 7839 KING PRESIDENT 17-NOV-81
5000 10 7934 MILLER CLERK 7782 23-JAN-82 1300 10SQL>
