SQL Query language

1. 1.)waqtfo all the list of tables ?
SQL> select * from cat;
TABLE_NAME TABLE_TYPE
------------------------------ -----------
BONUS TABLE
DEPT TABLE
EMP TABLE
SALGRADE TABLE
2.)waqtfo all the dept details ?
SQL> select * from dept;
DEPTNO DNAME LOC
---------- -------------- -------------
10 ACCOUNTING NEW YORK
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTON
3.)waqtfo the deptno from dept table ?
SQL> select deptno from dept;
DEPTNO
----------
10
20
30
40
4.)waqtfo location and deptno from dept ?
SQL> select deptno, loc from dept;
DEPTNO LOC
---------- -------------
10 NEW YORK
20 DALLAS
30 CHICAGO

2. 40 BOSTON
5.)waqtfo all the dept details ?
SQL> select * from dept;
DEPTNO DNAME LOC
---------- -------------- -------------
10 ACCOUNTING NEW YORK
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTON
6.)waqtfo all the dept name and deptno from the dept table ?
SQL> select dname, deptno from dept;
DNAME DEPTNO
-------------- ----------
ACCOUNTING 10
RESEARCH 20
SALES 30
OPERATIONS 40
7.)waqtfo all the employee names and their corresponding salary ?
SQL> select ename, sal from emp;
ENAME SAL
---------- ----------
KING 5000
BLAKE 2850
CLARK 2450
JONES 2975
SCOTT 3000
FORD 3000
SMITH 800
ALLEN 1600
WARD 1250
MARTIN 1250
TURNER 1500
ADAMS 1100
JAMES 950
MILLER 1300

3. 14 rows selected.
8.)waqtfo all the employee names and their job and salary ?
SQL> select ename, sal, job from emp;
ENAME SAL JOB
---------- ---------- ---------
KING 5000 PRESIDENT
BLAKE 2850 MANAGER
CLARK 2450 MANAGER
JONES 2975 MANAGER
SCOTT 3000 ANALYST
FORD 3000 ANALYST
SMITH 800 CLERK
ALLEN 1600 SALESMAN
WARD 1250 SALESMAN
MARTIN 1250 SALESMAN
TURNER 1500 SALESMAN
ADAMS 1100 CLERK
JAMES 950 CLERK
MILLER 1300 CLERK
14 rows selected.
9.)waqtfo all the employee names, salary and annual salary ?
SQL> select ename, sal, sal*12 from emp;
ENAME SAL SAL*12
---------- ---------- ----------
KING 5000 60000
BLAKE 2850 34200
CLARK 2450 29400
JONES 2975 35700
SCOTT 3000 36000
FORD 3000 36000
SMITH 800 9600
ALLEN 1600 19200
WARD 1250 15000
MARTIN 1250 15000
TURNER 1500 18000
ADAMS 1100 13200
JAMES 950 11400
MILLER 1300 15600
14 rows selected.

4. 10.)waqtfo all the employee names, salary, annual salary and projected
annual salary, if it is increased by 11% ?
SQL> select ename, sal, sal*12, sal*12*1.11 from emp;
ENAME SAL SAL*12 SAL*12*1.11
---------- ---------- ---------- -----------
KING 5000 60000 66600
BLAKE 2850 34200 37962
CLARK 2450 29400 32634
JONES 2975 35700 39627
SCOTT 3000 36000 39960
FORD 3000 36000 39960
SMITH 800 9600 10656
ALLEN 1600 19200 21312
WARD 1250 15000 16650
MARTIN 1250 15000 16650
TURNER 1500 18000 19980
ADAMS 1100 13200 14652
JAMES 950 11400 12654
MILLER 1300 15600 17316
14 rows selected.
11.)waqtfo all the employee names, salary, annual salary and projected
annual salary, if it is increased by 11% using Alias keyword ?
SQL> select ename as emp_name, sal, sal*12, sal*12*1.11 as projected from
emp;
EMP_NAME SAL SAL*12 PROJECTED
---------- ---------- ---------- ----------
KING 5000 60000 66600
BLAKE 2850 34200 37962
CLARK 2450 29400 32634
JONES 2975 35700 39627
SCOTT 3000 36000 39960
FORD 3000 36000 39960
SMITH 800 9600 10656
ALLEN 1600 19200 21312
WARD 1250 15000 16650
MARTIN 1250 15000 16650
TURNER 1500 18000 19980
ADAMS 1100 13200 14652
JAMES 950 11400 12654
MILLER 1300 15600 17316
14 rows selected.

5. 12.)waqtfo available deptno in emp table ?
SQL> select distinct deptno from emp;
DEPTNO
----------
30
20
10
13.)waqtfo all the employee names and employee no from emp using
concatenation alias keyword ?
SQL> select 'my name is .....'||ename||' '||empno as myname from emp;
MYNAME
-------------------------------------------------------------------
my name is .....KING 7839
my name is .....BLAKE 7698
my name is .....CLARK 7782
my name is .....JONES 7566
my name is .....SCOTT 7788
my name is .....FORD 7902
my name is .....SMITH 7369
my name is .....ALLEN 7499
my name is .....WARD 7521
my name is .....MARTIN 7654
my name is .....TURNER 7844
my name is .....ADAMS 7876
my name is .....JAMES 7900
my name is .....MILLER 7934
14 rows selected.
14.)waqtfo all the employee names who belong to deptno 10 ?
SQL> select ename from emp where deptno=10;
ENAME
----------
KING
CLARK
MILLER
15.)waqtfo all the employee names who is getting the salary greater than
1000 and lesser than 3000 ?

6. SQL> select ename from emp where sal>1000 and sal<3000;
ENAME
----------
BLAKE
CLARK
JONES
ALLEN
WARD
MARTIN
TURNER
ADAMS
MILLER
9 rows selected.
16.)waqtfo all the employee names who are working as CLERK ?
SQL> select ename from emp where job='CLERK';
ENAME
----------
SMITH
ADAMS
JAMES
MILLER
17.)waqtfo all the employee names have salary greater than 1000 lesser
than 3000 and working as either CLERK, SALESMAN or ANALYSIST and working
in a deptno 10,20 or 30 ?
SQL> select ename from emp where (sal>1000 and sal<3000) and (job='CLERK'
or job='SALESMAN' or job='ANALYST') and (deptno=10 or deptno=20 or
deptno=30);
ENAME
----------
ALLEN
WARD
MARTIN
TURNER
ADAMS
MILLER
6 rows selected.
18.)waqtfo all the employee names working in deptno 10 or 20 or 30 or 40 ?

7. SQL> select ename from emp where deptno in (10,20,30,40);
ENAME
----------
KING
BLAKE
CLARK
JONES
SCOTT
FORD
SMITH
ALLEN
WARD
MARTIN
TURNER
ADAMS
JAMES
MILLER
14 rows selected.
19.)waqtfo all the enames who are eligible for commision ?
SQL> select ename from emp where comm is not null;
ENAME
----------
ALLEN
WARD
MARTIN
TURNER
20.)waqtfo all the enames having managers ?
SQL> select ename from emp where MGR is not null;
ENAME
----------
BLAKE
CLARK
JONES
SCOTT
FORD
SMITH
ALLEN
WARD

8. MARTIN
TURNER
ADAMS
JAMES
MILLER
13 rows selected.
21.)waqtfo all the enames who are working in deptno 10 ?
SQL> select ename from emp where deptno=10;
ENAME
----------
KING
CLARK
MILLER
22.)waqtfo all the enames working in scott's dept ?
SQL> select ename from emp where deptno=(select deptno from emp where
ename='SCOTT');
ENAME
----------
JONES
SCOTT
FORD
SMITH
ADAMS
23.)waqtfo all the enames working in same job as smith ?
SQL> select ename from emp where job=(select job from emp where
ename='SMITH');
ENAME
----------
SMITH
ADAMS
JAMES
MILLER
24.)waqtfo all the enames getting a salary greater than smith ?

9. SQL> select ename from emp where sal> (select sal from emp where
ename='SMITH');
ENAME
----------
KING
BLAKE
CLARK
JONES
SCOTT
FORD
ALLEN
WARD
MARTIN
TURNER
ADAMS
JAMES
MILLER
13 rows selected.
25.)waqtfo all the enames getting a salary greater than all of clerks ?
SQL> select ename from emp where sal> all (select sal from emp where
job='CLERK');
ENAME
----------
TURNER
ALLEN
CLARK
BLAKE
JONES
FORD
SCOTT
KING
8 rows selected.
26.)waqtfo all the enames getting a salary greater than any one of the
clerks ?
SQL> select ename from emp where sal> any (select sal from emp where
job='CLERK');
ENAME
----------

10. KING
SCOTT
FORD
JONES
BLAKE
CLARK
ALLEN
TURNER
MILLER
MARTIN
WARD
ADAMS
JAMES
13 rows selected.
27.)waqtfo all the enames who is working in scotts dept or smith dept ?
SQL> select ename from emp where deptno= any (select deptno from emp where
ename in ('SCOTT','SMITH'));
ENAME
----------
ADAMS
SMITH
FORD
SCOTT
JONES
28.)waqtfo all the enames who is working NEW YORK ?
SQL> select ename from emp where deptno in (select deptno from dept where
loc='NEW YORK');
ENAME
----------
KING
CLARK
MILLER
29.)waqtfo all the enames working in RESEARCH dept ?
SQL> select ename from emp where deptno in (select deptno from dept where
dname='RESEARCH');

11. ENAME
----------
JONES
SCOTT
FORD
SMITH
ADAMS
30.)waqtfo all the enames who are working as CLERK in NEW YORK ?
SQL> select ename from emp where deptno in (select deptno from dept where
loc='NEW YORK' and job='CLERK');
ENAME
----------
MILLER
31.)waqtfo all the enames whose name is beginning with S ?
SQL> select ename from emp where ename like 'S%';
ENAME
----------
SCOTT
SMITH
32.)waqtfo all the enames starting with S and ending with H ?
SQL> select ename from emp where ename like 'S%H';
ENAME
----------
SMITH
33.)waqtfo all the enames which contains 3 letters ?
SQL> SQL> select ename from emp where ename like'___%';
ENAME
----------
KING
BLAKE
CLARK
JONES
SCOTT

12. FORD
SMITH
ALLEN
WARD
MARTIN
TURNER
ADAMS
JAMES
MILLER
14 rows selected.
34.)waqtfo all the enames which contains minimum of 3 letters and contains
I as its second last one ?
SQL> select ename from emp where ename like '___%' and ename like '%I_';
ENAME
----------
MARTIN
35.)waqtfo all the enames which contains M or N and it contains minimum of
4 letters and maximum of 6 letter and second letter should be either L or
Z ?
SQL> select ename from emp where ename like '___%' and (ename like '%M%'
or ename like '%N%') and (ename like '_L%' or ename like '_Z%') and (ename
like '___%' or ename like '______%');
ENAME
----------
ALLEN
36.)waqtfo all the enames which contains M ?
SQL> select ename from emp where lower(ename) like '%m%';
ENAME
----------
SMITH
MARTIN
ADAMS
JAMES
MILLER
37.)waqtfo the average salary of the emp table ?

13. SQL> select avg(sal) from emp;
AVG(SAL)
----------
2073.21429
38.)waqtfo the average salary of deptno 10 ?
SQL> select avg(sal) from emp where deptno=10;
AVG(SAL)
----------
2916.66667
39.)waqtfo the average salary of scotts dept ?
SQL> select avg(sal) from emp where deptno in (select deptno from emp
where ename='SCOTT');
AVG(SAL)
----------
2175
40.)waqtfo the average of each dept in the emp table ?
SQL> select avg(sal), deptno from emp group by deptno;
AVG(SAL) DEPTNO
---------- ----------
1566.66667 30
2175 20
2916.66667 10
41.)waqtfo the average salary of each job ?
SQL> select avg(sal), job from emp group by job;
AVG(SAL) JOB
---------- ---------
1037.5 CLERK
1400 SALESMAN
5000 PRESIDENT

14. 2758.33333 MANAGER
3000 ANALYST
42.)waqtfo the average salary and no. of employees working in scotts
dept ?
SQL> select avg(sal), count(ename) from emp where deptno in (select deptno
from emp where ename='SCOTT');
AVG(SAL) COUNT(ENAME)
---------- ------------
2175 5
43.)waqtfo all the deptno and their corresponding average salary ?
SQL> select avg(sal), deptno from emp group by deptno;
AVG(SAL) DEPTNO
---------- ----------
1566.66667 30
2175 20
2916.66667 10
44.)waqtfo the maximum salary and minimum salary taken by each dept ?
SQL> select max(sal), min(sal), deptno from emp group by deptno;
MAX(SAL) MIN(SAL) DEPTNO
---------- ---------- ----------
2850 950 30
3000 800 20
5000 1300 10
45.)waqtfo the number of employees in each dept which is located either in
New York or Dallas ?
SQL> select count(empno), deptno from emp where deptno in (select deptno
from dept where loc ='NEW YORK' or loc='DALLAS') group by deptno;
COUNT(EMPNO) DEPTNO
------------ ----------
5 20
3 10
46.)waqtfo all the deptno. having an average salary greater than 2500 ?
SQL> select deptno, avg(sal) from emp group by deptno having avg(sal)
>2500;
DEPTNO AVG(SAL)
---------- ----------
10 2916.66667
47.)waqtfo the dept where are more than 3 employees ?

15. SQL> select deptno from emp group by deptno having count(empno) > 3;
DEPTNO
----------
30
20
48.)waqtfo all employee table and dept table ?
SQL> select emp.*, dept.* from emp, dept where emp.deptno=dept.deptno;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ---------- ----------
DNAME LOC
-------------- -------------
7839 KING PRESIDENT 17-NOV-81 5000 10 10
ACCOUNTING NEW YORK
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 30
SALES CHICAGO
7782 CLARK MANAGER 7839 09-JUN-81 2450 10 10
ACCOUNTING NEW YORK
7566 JONES MANAGER 7839 02-APR-81 2975 20 20
RESEARCH DALLAS
7788 SCOTT ANALYST 7566 19-APR-87 3000 20 20
RESEARCH DALLAS
7902 FORD ANALYST 7566 03-DEC-81 3000 20 20
RESEARCH DALLAS
7369 SMITH CLERK 7902 17-DEC-80 800 20 20
RESEARCH DALLAS
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 30
SALES CHICAGO
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 30
SALES CHICAGO
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 30
SALES CHICAGO
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 30
SALES CHICAGO
7876 ADAMS CLERK 7788 23-MAY-87 1100 20 20
RESEARCH DALLAS
7900 JAMES CLERK 7698 03-DEC-81 950 30 30
SALES CHICAGO
7934 MILLER CLERK 7782 23-JAN-82 1300 10 10
ACCOUNTING NEW YORK
14 rows selected.
49.)waqtfo all the enames and deptname ?
SQL> select emp.ename, dept.dname from emp, dept where
emp.deptno=dept.deptno;
ENAME DNAME
---------- --------------
KING ACCOUNTING
BLAKE SALES
CLARK ACCOUNTING

16. JONES RESEARCH
SCOTT RESEARCH
FORD RESEARCH
SMITH RESEARCH
ALLEN SALES
WARD SALES
MARTIN SALES
TURNER SALES
ADAMS RESEARCH
JAMES SALES
MILLER ACCOUNTING
14 rows selected.
50.)waqtfo all the employee name and dept. name working in New York ?
SQL> select emp.ename, dept.dname from emp, dept where
emp.deptno=dept.deptno and dept.loc='NEW YORK';
ENAME DNAME
---------- --------------
KING ACCOUNTING
CLARK ACCOUNTING
MILLER ACCOUNTING
51.)waqtfo all the employee names and dept. names working in SCOTTs
dept. ?
SQL> select emp.ename, dept.dname from emp, dept where
emp.deptno=dept.deptno and dept.deptno in (select deptno from emp where
ename='SCOTT');
ENAME DNAME
---------- --------------
JONES RESEARCH
SCOTT RESEARCH
FORD RESEARCH
SMITH RESEARCH
ADAMS RESEARCH
52.)waqtfo the dept.names and there average salary ?
SQL> select avg(emp.sal), dept.dname from emp, dept where
emp.deptno=dept.deptno group by dept.dname;
AVG(EMP.SAL) DNAME
------------ --------------
2916.66667 ACCOUNTING
2175 RESEARCH
1566.66667 SALES
53.)waqtfo all the employee table and dept. table ?
SQL> select emp.*, dept.* from emp, dept where emp.deptno(+)=dept.deptno;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ---------- ----------
DNAME LOC
-------------- -------------
7839 KING PRESIDENT 17-NOV-81 5000 10 10
ACCOUNTING NEW YORK

17. 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 30
SALES CHICAGO
7782 CLARK MANAGER 7839 09-JUN-81 2450 10 10
ACCOUNTING NEW YORK
7566 JONES MANAGER 7839 02-APR-81 2975 20 20
RESEARCH DALLAS
7788 SCOTT ANALYST 7566 19-APR-87 3000 20 20
RESEARCH DALLAS
7902 FORD ANALYST 7566 03-DEC-81 3000 20 20
RESEARCH DALLAS
7369 SMITH CLERK 7902 17-DEC-80 800 20 20
RESEARCH DALLAS
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 30
SALES CHICAGO
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 30
SALES CHICAGO
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 30
SALES CHICAGO
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 30
SALES CHICAGO
7876 ADAMS CLERK 7788 23-MAY-87 1100 20 20
RESEARCH DALLAS
7900 JAMES CLERK 7698 03-DEC-81 950 30 30
SALES CHICAGO
7934 MILLER CLERK 7782 23-JAN-82 1300 10 10
ACCOUNTING NEW YORK
40
OPERATIONS BOSTON
15 rows selected.
54.)waqtfo all the employee table and dept. table ?
SQL> select emp.*, dept.* from emp, dept where emp.deptno=dept.deptno(+);
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ---------- ----------
DNAME LOC
-------------- -------------
7934 MILLER CLERK 7782 23-JAN-82 1300 10 10
ACCOUNTING NEW YORK
7782 CLARK MANAGER 7839 09-JUN-81 2450 10 10
ACCOUNTING NEW YORK
7839 KING PRESIDENT 17-NOV-81 5000 10 10
ACCOUNTING NEW YORK
7876 ADAMS CLERK 7788 23-MAY-87 1100 20 20
RESEARCH DALLAS
7369 SMITH CLERK 7902 17-DEC-80 800 20 20
RESEARCH DALLAS
7902 FORD ANALYST 7566 03-DEC-81 3000 20 20
RESEARCH DALLAS
7788 SCOTT ANALYST 7566 19-APR-87 3000 20 20
RESEARCH DALLAS
7566 JONES MANAGER 7839 02-APR-81 2975 20 20
RESEARCH DALLAS
7900 JAMES CLERK 7698 03-DEC-81 950 30 30
SALES CHICAGO

18. 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 30
SALES CHICAGO
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 30
SALES CHICAGO
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 30
SALES CHICAGO
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 30
SALES CHICAGO
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 30
SALES CHICAGO
14 rows selected.
55.)waqtfo all the employee names and dept. names, it should also include
those deptnames where there are no employees ?
SQL> select emp.ename, dept.dname from emp, dept where
emp.deptno(+)=dept.deptno;
ENAME DNAME
---------- --------------
KING ACCOUNTING
BLAKE SALES
CLARK ACCOUNTING
JONES RESEARCH
SCOTT RESEARCH
FORD RESEARCH
SMITH RESEARCH
ALLEN SALES
WARD SALES
MARTIN SALES
TURNER SALES
ADAMS RESEARCH
JAMES SALES
MILLER ACCOUNTING
OPERATIONS
15 rows selected.
56.)waqtfo all the dept.names were there are no employees ?
SQL> select emp.ename, dept.dname from emp, dept where
emp.deptno(+)=dept.deptno and emp.deptno is null;
ENAME DNAME
---------- --------------
OPERATIONS
57.)waqtfo all the dept.names and there average salary ?
SQL> select avg(emp.sal), dept.dname from emp, dept where
emp.deptno(+)=dept.deptno group by dname;
AVG(EMP.SAL) DNAME
------------ --------------
2916.66667 ACCOUNTING
OPERATIONS
2175 RESEARCH

19. 1566.66667 SALES
58.)waqtfo the number of employee in each dept. ?
SQL> select count(emp.ename), dept.deptno from emp, dept where
emp.deptno(+)=dept.deptno group by dept.deptno;
COUNT(EMP.ENAME) DEPTNO
---------------- ----------
3 10
5 20
6 30
0 40
59.)waqtfo all employees names and manager names ?
SQL> select e1.ename, e2.ename as mgr_name from emp e1, emp e2 where
e1.mgr=e2.empno;
ENAME MGR_NAME
---------- ----------
JONES KING
CLARK KING
BLAKE KING
JAMES BLAKE
TURNER BLAKE
MARTIN BLAKE
WARD BLAKE
ALLEN BLAKE
MILLER CLARK
FORD JONES
SCOTT JONES
ADAMS SCOTT
SMITH FORD
13 rows selected.
60.)write an update statement to update all the employee salary by
Rs.100 ?
SQL> update emp set sal=sal+100 where empno is not null;
14 rows updated.
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7839 KING PRESIDENT 17-NOV-81 5100 10
7698 BLAKE MANAGER 7839 01-MAY-81 2950 30
7782 CLARK MANAGER 7839 09-JUN-81 2550 10
7566 JONES MANAGER 7839 02-APR-81 3075 20
7788 SCOTT ANALYST 7566 19-APR-87 3100 20
7902 FORD ANALYST 7566 03-DEC-81 3100 20
7369 SMITH CLERK 7902 17-DEC-80 900 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1700 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1350 500 30
7654 MARTIN SALESMAN 7698 28-SEP-81 1350 1400 30
7844 TURNER SALESMAN 7698 08-SEP-81 1600 0 30
7876 ADAMS CLERK 7788 23-MAY-87 1200 20

20. 7900 JAMES CLERK 7698 03-DEC-81 1050 30
7934 MILLER CLERK 7782 23-JAN-82 1400 10
14 rows selected.
61.)write an update statement to update all the job from clerk to FDA ?
SQL> update emp set job='FDA' where job='CLERK';
4 rows updated.
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7839 KING PRESIDENT 17-NOV-81 5100 10
7698 BLAKE MANAGER 7839 01-MAY-81 2950 30
7782 CLARK MANAGER 7839 09-JUN-81 2550 10
7566 JONES MANAGER 7839 02-APR-81 3075 20
7788 SCOTT ANALYST 7566 19-APR-87 3100 20
7902 FORD ANALYST 7566 03-DEC-81 3100 20
7369 SMITH FDA 7902 17-DEC-80 900 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1700 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1350 500 30
7654 MARTIN SALESMAN 7698 28-SEP-81 1350 1400 30
7844 TURNER SALESMAN 7698 08-SEP-81 1600 0 30
7876 ADAMS FDA 7788 23-MAY-87 1200 20
7900 JAMES FDA 7698 03-DEC-81 1050 30
7934 MILLER FDA 7782 23-JAN-82 1400 10
14 rows selected.
62.)write an update statement to update al the manager sal to Rs.100 who
are working in New York ?
SQL> update emp set sal=sal+100 where job='MANAGER' and deptno in (select
deptno from dept where loc='NEW YORK');
1 row updated.
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7839 KING PRESIDENT 17-NOV-81 5100 10
7698 BLAKE MANAGER 7839 01-MAY-81 2950 30
7782 CLARK MANAGER 7839 09-JUN-81 2650 10
7566 JONES MANAGER 7839 02-APR-81 3075 20
7788 SCOTT ANALYST 7566 19-APR-87 3100 20
7902 FORD ANALYST 7566 03-DEC-81 3100 20
7369 SMITH FDA 7902 17-DEC-80 900 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1700 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1350 500 30
7654 MARTIN SALESMAN 7698 28-SEP-81 1350 1400 30
7844 TURNER SALESMAN 7698 08-SEP-81 1600 0 30
7876 ADAMS FDA 7788 23-MAY-87 1200 20
7900 JAMES FDA 7698 03-DEC-81 1050 30
7934 MILLER FDA 7782 23-JAN-82 1400 10
14 rows selected.
SQL> select * from dept;

21. DEPTNO DNAME LOC
---------- -------------- -------------
10 ACCOUNTING NEW YORK
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTON
63.)write a delete statement to delete all the employee records who are
working as manager ?
SQL> delete from emp where job='MANAGER';
3 rows deleted.
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7839 KING PRESIDENT 17-NOV-81 5100 10
7788 SCOTT ANALYST 7566 19-APR-87 3100 20
7902 FORD ANALYST 7566 03-DEC-81 3100 20
7369 SMITH FDA 7902 17-DEC-80 900 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1700 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1350 500 30
7654 MARTIN SALESMAN 7698 28-SEP-81 1350 1400 30
7844 TURNER SALESMAN 7698 08-SEP-81 1600 0 30
7876 ADAMS FDA 7788 23-MAY-87 1200 20
7900 JAMES FDA 7698 03-DEC-81 1050 30
7934 MILLER FDA 7782 23-JAN-82 1400 10
11 rows selected.
64.)write a delete statement to delete all the employee records who are
working with New York ?
SQL> delete from emp where deptno in (select deptno from dept where
loc='NEW YORK');
2 rows deleted.
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7788 SCOTT ANALYST 7566 19-APR-87 3100 20
7902 FORD ANALYST 7566 03-DEC-81 3100 20
7369 SMITH FDA 7902 17-DEC-80 900 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1700 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1350 500 30
7654 MARTIN SALESMAN 7698 28-SEP-81 1350 1400 30
7844 TURNER SALESMAN 7698 08-SEP-81 1600 0 30
7876 ADAMS FDA 7788 23-MAY-87 1200 20
7900 JAMES FDA 7698 03-DEC-81 1050 30
9 rows selected.
65.)write a delete statement to delete all the employee who are working in
SCOTTs dept. as managers and getting a salary greater than the average
salary of a clerk ?

22. SQL> delete from emp where deptno in (select deptno from emp where
ename='SCOTT' and job='MANAGER') and sal > (select avg(sal) from emp where
job='CLERK');
0 rows deleted.