Sem 3: DBMS Practical File

8/2/2019 Sem 3: DBMS Practical File

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NEIL ATHE - A2324710

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INDEX

No Date Topic Sign

1 01-AUG-11 Q0: Creating Tables.

2 01-AUG-11 Q1: Solving Queries based on EMP table.

3 08-AUG-11 Q2: Solving Queries using GROUP BY

4 29-AUG-11 Q3: Solving Queries based on ITEM MASTER table.

5 05-SEP-11 Q3: Nested Queries using TRANSACTION table.

6 26-SEP-11 Q4: Queries on Self Joins, Outer Joins, TOP N QUERY

and nested queries on EMP table.

7 17OCT-11 Q5: Queries using 10 SQL functions.


3/34

Q O

(i) Creating table EMP.

CREATE TABLE EMP (

EMPNO NUMBER( 4) ,

ENAME VARCHAR2( 20) ,

JOB CHAR( 10) ,

MGR NUMBER( 4) ,

HI REDATE DATE,

SAL NUMBER( 9, 2) ,

COMM NUMBER( 7, 2) ,

DEPTNO NUMBER( 2)

) ;

Tabl e cr eat ed.

(ii) After Inserting values, Show all rows of table EMP.SELECT * FROM EMP;

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 03-DEC-81 950 30

7902 Ford Analyst 7566 04-DEC-81 3000 20

12 r ows sel ect ed.


4/34

(i) Creating table DEPT.

CREATE TABLE DEPT_NM (

DEPTNO NUMBER( 2) ,

DNAME var char 2( 20) ,

LOC var char 2( 10)

) ;

Tabl e cr eat ed.

(ii) After Inserting values, Show all rows of table DEPT.

SELECT * FROM DEPT_NM;

DEPTNO DNAME LOC

10 Accounting New York

20 Research Dallas

30 Sales Chicago40 Operations Boston


5/34

(i) Creating table ITEM_MASTER.

CREATE TABLE I TEM_MASTER (

I TNO NUMBER( 4) PRI MARY KEY,

NAME VARCHAR2( 20) NOT NULL,

QOH NUMBER( 5) DEFAULT 100,

CLASS VARCHAR2( 1) NOT NULL CHECK ( CLASS I N ( ' A' , ' B' , ' C' ) ) ,

UOM VARCHAR2( 4) ,

ROL NUMBER( 5) ,

ROQ NUMBER( 5) ,

RATE NUMBER( 8, 2) NOT NULL) ;

Tabl e cr eat ed.

(ii) After Inserting values, Show all rows of table ITEM_MASTER.

SELECT * FROM I TEM_MASTER;

ITNO NAME QOH CLA UOM ROL ROQ RATE

1090 Hammer 234 A pcs 12 34 400.9

1089 Saw 456 B pcs 17 23 800.89

1088 Lawn Mover 123 C pcs 21 21 5000.88

1087 Dish Washer 234 A pcs 76 45 950.87

1067 Baking Oven 145 A pcs 87 34 6000.67

1063 Spark Plug 150 C watt 34 67 750.63

1609 Alternator 168 B watt 50 56 750.091890 Battery 189 A volt 30 40 300.9

1378 Piston 234 B pcs 45 50 250.78

9 r ows sel ect ed.


6/34

(i) Creating table TRANSACTION.

CREATE TABLE TRANSACTI ON_NM (

I TNO NUMBER( 4) ,

TYPE VARCHAR2( 10) ,

QTY NUMBER( 4) ,

RECEI PTNO VARCHAR2( 20) ,

DOT DATE

) ;

Tabl e cr eat ed.

(ii) After Inserting values, Show all rows of table TRANSACTION.

SELECT * FROM TRANSACTI ON_NM;

ITNO TYPE QTY RECEIPTNO DOT

1090 receive 500 A4333 01-JAN-09

1090issue 100 A4336 23-FEB-10

1609 receive 215 A2143 23-FEB-10

1090 issue 150 A4343 12-MAR-10

1087 issue 300 B4143 01-SEP-10

1087 receive 50 A4143 16-DEC-10

1087 receive 50 A4144 20-DEC-10

1087 receive 50 A4145 30-DEC-10

1087 receive 50 A4149 11-JUN-11

1890 issue 25 C4143 15-JUL-11

1087 receive 50 A4151 20-JUL-11

1090 issue 200 A4133 01-AUG-11

1890 receive 15 C4113 10-SEP-11

1089 issue 125 C4041 19-SEP-11

1090 issue 120 A6336 25-SEP-11

1087 receive 50 A4155 26-SEP-11



7/34

Q1

(i) List the employees belonging to the department number 20.

SELECT * FROM EMP WHERE DEPTNO=20;


7369 Smith Clerk 7902 17-DEC-80 800 20



7902 Ford Analyst 7566 04-DEC-81 3000 20

4 r ows i n se t .

(ii) List the Names and Salaries of the employees whose salary is more than 1000.

SELECT ENAME, SAL FROM EMP WHERE SAL>1000;

ENAME SAL

Allen 1600

Ward 1250

Jones 2975

Martin 1250

Blake 2850

Clark 2450

Scott 3000

King 5000

Turner 1500

Ford 3000

10 r ows i n set .


8/34

(iii) List the Employee number and Name of the Managers.

SELECT EMPNO, ENAME FROM EMP WHERE JOB LI KE ' Manager ' ;

EMPNO ENAME

7566 Jones7698 Blake7782 Clark

3 r ows i n se t .

(iv) List the name of the clerk working in department number 20.

SELECT ENAME FROM EMP WHERE JOB LI KE ' Cl er k ' AND DEPTNO=20;

ENAME

Smith

1 r ow i n se t .


9/34

(v) List details of employees who have joined before the end of September 81.

SELECT * FROM EMP WHERE HI REDATE < ' 30- SEP- 81' ;


7369 Smith Clerk 7902 17-DEC-80 800 20

7499 Allen Salesman 7698 20-FEB-81 1600 300 30




7698 Blake Manager 7839 01-MAY-81 2850 30

7782 Clark Manager 7839 09-JUN-81 2450 107844 Turner Salesman 7698 08-SEP-81 1500 0 30

8 r ows i n se t .

(vi) List the employee names of those who are not eligible for commission.

SELECT ENAME FROM EMP WHERE COMM I S NULL;

ENAME

Smith

Jones

Blake

Clark

Scott

King

AdamsFord

8 r ows i n se t .


10/34

(vii) List name of employees who are more than 2 years old in organization.

SELECT ENAME FROM EMP

WHERE TO_CHAR( SYSDATE, ' YYYY' ) - TO_CHAR( HI REDATE, ' YYYY' ) >2;

ENAME

Smith

Allen

Ward

Jones

Martin

Blake

ClarkScott

King

Turner

Adams

Ford



11/34

(viii) List the total, maximum, minimum and average salary of employees, jobwise fordepartment number 20.

SELECT JOB, SUM( SAL) , MAX( SAL) , MI N( SAL) , AVG( SAL)

FROM EMP WHERE DEPTNO=20 GROUP BY JOB;

JOB SUM(SAL) MAX(SAL) MIN(SAL) AVG(SAL)

Analyst 6000 3000 3000 3000

Clerk 800 800 800 800

Manager 2975 2975 2975 2975

3 r ows i n se t .

(ix) List names of all employees who have ll and tt in their name.

SELECT ENAME FROM EMP WHERE ENAME

LI KE ' %t t %' OR ENAME LI KE ' %l l %' ;

ENAME

Allen

Scott

2 r ows i n se t .


12/34

(x) List lowest paid employee working for each manager. Sort the output by salary.

SELECT * FROM EMP WHERE SAL I N

( SELECT MI N( SAL) FROM EMP WHERE MGR I S NOT NULL GROUP BY MGR)

ORDER BY SAL;


7369 Smith Clerk 7902 17-DEC-80 800 20

7876 Adams Clerk 7788 03-DEC-81 950 30



7782 Clark Manager 7839 09-JUN-81 2450 10


7902 Ford Analyst 7566 04-DEC-81 3000 20

7 r ows sel ect ed.


13/34

Q2

(i) List the Job, No of employees in each job. The result should be in descendingorder of the number of employees.

SELECT JOB, COUNT( * ) FROM EMP

GROUP BY JOB ORDER BY COUNT( * ) DESC;

JOB COUNT(*)

Salesman 4

Manager 3

Analyst 2

Clerk 2

President 1

5 r ows sel ect ed.

(ii) List the average salary from each job excluding manager.

SELECT JOB, AVG( SAL) FROM EMP

WHERE JOB NOT LI KE ' Manager ' GROUP BY JOB;

JOB AVG(SAL)

Analyst 3000

Clerk 875

President 5000

Salesman 1400

4 r ows sel ect ed.


14/34

Q3

(i) Display item name, number and Qoh of all items where Qoh is more than 100.

SELECT NAME, I TNO, QOH FROM I TEM_MASTER WHERE QOH>100;

NAME ITNO QOH

Hammer 1090 234

Saw 1089 456

Lawn Mover 1088 123

Dish Washer 1087 234

Baking Oven 1067 145

Spark Plug 1063 150

Alternator 1609 168Battery 1890 189

Piston 1378 234

9 r ows sel ect ed.


15/34

(ii) List the items which have been issued more than 3 times.

SELECT I TNO, NAME FROM I TEM_MASTER WHERE I TNO I N( SELECT I TNO FROM TRANSACTI ON WHERE TYPE LI KE ' i ssue'

GROUP BY I TNO HAVI NG COUNT( I TNO) > 3 ) ;

ITNO NAME

1090 Hammer


16/34

(iii) List the item number, name and value of the cheapest item.

SELECT I TNO, NAME, RATE FROM I TEM_MASTER WHERE RATE I N( SELECT MI N( RATE) FROM I TEM_MASTER) ;

1 r ows sel ect ed.

ITNO NAME RATE

1378 Piston 250.78


17/34

(iv) List item

( S

name of an

SELECLECT I TN

GRO

item if and

NAME FRFROM TR

P BY I TN

Dish Washer

only if the

OM I TEM_ANSACTI O

HAVI NG

NAME

item was r

ASTER WHWHERE T

COUNT( I T

ceived mo

ERE I TNOYPE LI KE

O) > 5 )

e than 5 ti

I N' r ecei ve

;

es.

'


18/34

(v) List the value of items rounded to one decimal place.

SELECT ROUND( RATE, 1) FROM I TEM_MASTER;

ROUND(RATE,1)

400.9

800.9

5000.9

950.9

6000.7

750.6

750.1

300.9

250.8

9 r ows sel ect ed.

(vi) Display the first three letters of all employees.

SELECT SUBSTR( ENAME, 1, 3) FROM EMP;

SUBSTR(EN

Smi

All

War

Jon

Mar

Bla

Cla

Sco

KinTur

Ada

For



19/34

(vii)

(viii)

SE

IT

1

List the

Display l

ECT * FR

O

088 Lawn

ifferent un

SELECT

st of items

M I TEM_

AME

Mover

t of measu

DI STI NCT

cs

att

olt

3 r o

of class C a

ASTER WH

QOH

123 C

1 r o

ements av

UOM FROM

UOM

s s el ec t ed

d QOH wh

RE CLASS

CLA U

pcs

w sel ect ed.

ilable in ta

I TEM_MA

.

ere rate is

LI KE C

M ROL

2

.

ble.

TER;

ore than 2

AND RAT

ROQ

1 21

000.

> 2000;

RATE

5000.8


20/34

(ix) List the details of all employees in department 10 and 20 in alphabetical order.

SELECT * FROM EMP WHERE DEPTNO I N ( 10, 20) ORDER BY ENAME ASC;


7782 Clark Manager 7839 09-JUN-81 2450 107902 Ford Analyst 7566 04-DEC-81 3000 207566 Jones Manager 7839 02-APR-81 2975 207839 King President 17-NOV-81 5000 107788 Scott Analyst 7566 09-DEC-82 3000 207369 Smith Clerk 7902 17-DEC-80 800 20

6 r ows sel ect ed.

(x) Increate the rate of class B by 12%

UPDATE I TEM_MASTER SET RATE = RATE + 0. 12* RATE WHERE CLASS LI KE ' B' ;

3 r ows updat ed.



1090 Hammer 234 A pcs 12 34 400.91089 Saw 456 B pcs 17 23 8971088 Lawn Mover 123 C pcs 21 21 5000.881087 Dish Washer 234 A pcs 76 45 950.871067 Baking Oven 145 A pcs 87 34 6000.67

1063 Spark Plug 150 C watt 34 67 750.631609 Alternator 168 B watt 50 56 840.11890 Battery 189 A volt 30 40 300.91378 Piston 234 B pcs 45 50 280.87

9 r ows sel ect ed.


21/34

(xi) List the rate of item which has at least 3 receipts.

SELECT RATE FROM I TEM_MASTER WHERE I TNO I N( SELECT I TNO FROM TRANSACTI ON

GROUP BY I TNO HAVI NG COUNT( RECEI PTNO) > 3 ) ;

RATE

950.87

400.9


22/34

(xii) Update the QOH of items to QOH + 100

UPDATE I TEM_MASTER SET QOH = QOH + 100;

9 r ows updat ed.



1090 Hammer 334 A pcs 12 34 400.91089 Saw 556 B pcs 17 23 8971088 Lawn Mover 223 C pcs 21 21 5000.881087 Dish Washer 334 A pcs 76 45 950.871067 Baking Oven 245 A pcs 87 34 6000.671063 Spark Plug 250 C watt 34 67 750.631609 Alternator 268 B watt 50 56 840.11890 Battery 289 A volt 30 40 300.91378 Piston 334 B pcs 45 50 280.87

9 r ows sel ect ed.


23/34

(xiii)

IT

1111

Delete d

months.

O

090 Hamm089 Saw087 Dish890 Batter

tails of ite

DELETE

( SELECT

SELECT

WHERE MO

S

NAME

er

asher

s that hav

FROM I TE

DI STI NC

DI STI NCT

THS_BETW

5 r o

LECT * F

QOH

234456234189

no transa

_MASTER

I TNO FR

MI NUS

I TNO FRO

EEN( SYSD

ws del et ed.

ROM I TEM

CLA U

A pcB pcA pcA vol

tions takin

HERE I T

OM I TEM_

M TRANSA

TE, DOT)

.

MASTER;

OM RO

t

g place in t

O I N

ASTER

TI ON


24/34

(xiv) List the items for which one transaction was made.

SELECT I TNO, NAME FROM I TEM_MASTER WHERE I TNO I N( SELECT I TNO FROM TRANSACTI ON

GROUP BY I TNO HAVI NG COUNT( * ) = 1 ) ;

ITNO NAME

1089 Saw

1609 Alternator


25/34

(xv) List the number of items belonging to each class, minimum, maximum, average rates

and total value of items in each class.

SELECT CLASS, COUNT( * ) , MI N( RATE) , MAX( RATE) , AVG( RATE) , SUM( RATE)FROM I TEM_MASTER GROUP BY CLASS;

CLA COUNT(*) MIN(RATE) MAX(RATE) AVG(RATE) SUM(RATE)

A 4 300.9 6000.67 1913.335 7653.34B 3 280.87 897 672.656667 2017.97C 2 750.63 5000.88 2875.755 5751.51

3 r ows sel ect ed.

(xvi) Create a new table having only the items of class B.

CREATE TABLE EMP_CLASS_B AS( SELECT * FROM I TEM_MASTER WHERE CLASS LI KE ' B' ) ;

Tabl e c r eat ed.

SELECT * FROM EMP_CLASS_B;


1089 Saw 556 B pcs 17 23 897

1609 Alternator 268 B watt 50 56 840.11378 Piston 334 B pcs 45 50 280.87

3 r ows sel ect ed.


26/34

Q4

(i) List all employees names, jobs and deptno who have the same job as that of any

employee in department No: 20.

SELECT ENAME, JOB, DEPTNO FROM EMP_NM

WHERE JOB I N

( SELECT JOB FROM EMP_NM WHERE DEPTNO=20) ;

ENAME JOB DEPTNO

Adams Clerk 30

Smith Clerk 20

Clark Manager 10Blake Manager 30

Jones Manager 20

Ford Analyst 20

Scott Analyst 20

7 r ows sel ect ed.

(ii) Using Self Join, list all the employees who have joined before their manager.

SELECT E. EMPNO, E. ENAME FROM EMP_NM E, EMP_NM M

WHERE E. HI REDATE < M. HI REDATE AND E. MGR=M. EMPNO;

EMPNO ENAME

7521 Ward

7499 Allen

7782 Clark7698 Blake

7566 Jones

7369 Smith

6 r ows sel ect ed.


27/34

(iii) List all the employees who earn less than the average salary of all employees.

SELECT * FROM EMP_NM

WHERE SAL < ( SELECT AVG( SAL) FROM EMP_NM) ;


7369 Smith Clerk 7902 17-DEC-80 800 207499 Allen Salesman 7698 20-FEB-81 1600 300 307521 Ward Salesman 7698 22-FEB-81 1250 500 307654 Martin Salesman 7698 28-SEP-81 1250 1400 307844 Turner Salesman 7698 08-SEP-81 1500 0 307876 Adams Clerk 7788 03-DEC-89 950 30

6 r ows sel ect ed.

(iv) List all the employee names along with their managers name. Also list the names

of those employeea who have no manager. (Outer Join)

SELECT W. ENAME AS EMPLOYEE, M. ENAME AS MANAGER

FROM EMP_NM W, EMP_NM MWHERE W. MGR=M. EMPNO( +) ;

EMPLOYEE MANAGER

Ford Jones

Scott Jones

Turner Blake

Martin Blake

Ward Blake

Allen BlakeAdams Scott

Clark King

Blake King

Jones King

Smith Ford

King



28/34

(v) Display the Department which has no employees.

SELECT DEPTNO FROM DEPT_NM

WHERE DEPTNO NOT I N ( SELECT DI STI NCT DEPTNO FROM EMP_NM) ;

DEPTNO

40

1 r ow sel ect ed.

(vi) List details of employees who earn the minimum salary for their jobs.

SELECT * FROM EMP_NM X

WHERE SAL = ( SELECT MI N( SAL) FROM EMP_NM Y WHERE X. JOB= Y. JOB)

ORDER BY J OB;


7788 Scott Analyst 7566 09-DEC-82 3000 207902 Ford Analyst 7566 04-DEC-81 3000 207369 Smith Clerk 7902 17-DEC-80 800 207782 Clark Manager 7839 09-JUN-81 2450 107839 King President 17-NOV-81 5000 107521 Ward Salesman 7698 22-FEB-81 1250 500 307654 Martin Salesman 7698 28-SEP-81 1250 1400 30

7 r ows sel ect ed.


29/34

(vii) List the employee name, salary, department No for those employees who earn a

salary greater than average salary for their department. Show the output in

order of department no.

SELECT ENAME, SAL, DEPTNO FROM EMP_NM X

WHERE SAL > ( SELECT AVG( SAL) FROM EMP_NM Y WHERE X. DEPTNO = Y. DEPTNO)

ORDER BY DEPTNO;

ENAME SAL DEPTNO

King 5000 10

Jones 2975 20

Ford 3000 20

Scott 3000 20

Allen 1600 30

Blake 2850 30

6 r ows sel ect ed.

(viii) List details of employees who earn the highest salary for their job.

SELECT * FROM EMP_NM

WHERE JOB I N ( SELECT DI STI NCT JOB FROM EMP_NM)

AND SAL I N ( SELECT MAX( SAL) FROM EMP_NM GROUP BY JOB) ;


7876 Adams Clerk 7788 03-DEC-89 950 307499 Allen Salesman 7698 20-FEB-81 1600 300 307566 Jones Manager 7839 02-APR-81 2975 207902 Ford Analyst 7566 04-DEC-81 3000 20

7788 Scott Analyst 7566 09-DEC-82 3000 207839 King President 17-NOV-81 5000 10

6 r ows sel ect ed.


30/34

(ix) List the details of those employees who are among the five highest earners of

this company. (TOP N QUERY)

SELECT *

FROM ( SELECT * FROM EMP_NM ORDER BY SAL DESC)

WHERE ROWNUM ANY ( SELECT RATE FROM I TEM_MASTER WHERE CLASS=' B' ) ;

ITNO NAME

1067 Baking Oven

1088 Lawn Mover

1087 Dish Washer

1089 Saw

1063 Spark Plug1609 Alternator

1090 Hammer

1890 Battery

8 r ows sel ect ed.


31/34

Q5

(i) Perform a query using CEIL and FLOOR. (Arithmetic Functions)

S EL E CT CE I L ( 7 . 3 ) , F L OOR( 7 . 3 ) F ROM DUA L ;

CEIL(7.3) FLOOR(7.3)

8 7

(ii) Perform a query using ROUND and TRUNC.

S E L ECT ROUND( 7 . 3 2 6 , 2 ) , T RUNC( 7 . 3 2 6 , 2 ) F ROM DUA L ;

ROUND(7.326,2) TRUNC(7.326,2)

7.33 7.32

(iii) Perform a query using MOD.

S E L E CT MOD( 1 2 , 5 ) F R OM D UA L ;

MOD(12,5)

2


32/34

(iv) Perform a query using RPAD (String Functions)

S E L ECT RP A D( ' He l l o ' , 7 , ' ! ' ) F ROM DUA L ;

RPAD('HELLO',7,'!')

Hello!!

(v) Perform a query using LTRIM and RTRIM.

S E L ECT RT RI M ( L T RI M( ' MMMA GNE T S S ' , ' M' ) , ' S ' ) F ROM DUA L ;

RTRIM(LTRIM('MM

AGNET

(vi) Perform a query using TRANSLATE.

S E L ECT DNA ME , T RA NS L AT E( DNA ME , ' a i e o u ' , ' u o e i ' ) F ROM DE PT _ NM;

TRANSLATE(DNAME,'AIEOU','UOEI')

Accounting AccintongResearch ReseurchSales SulesOperations Operutoins


33/34

(vii)

(viii)

Perform

S E L E

Perform

S E L E C T T O

a query usi

C T N E X T _

26-OCT

a query usi

_ CHA R( T

Tuesd

g NEXT_D

A Y ( ' 2 5 - O

NEXT_

-11

g TO_CHA

_ DA T E ( ' 2

O_CHAR(T

y

Y. (Date F

CT - 2 0 1 1 ' ,

DAY('25-OC

and TO_D

5 - OCT - 2 0 1

_DATE('25-

nctions)

' WE D' )

T-2

ATE.

1 ' ) , ' D

OCT-201

FROM DUAL

y ' ) F ROM

;

D U A L ;


34/34

(ix) Perform a query using NVL. (General Functions)

S E L E C T E MP NO, S A L , C OMM, S A L + C OMM, S A L + N VL ( C OMM, 0 ) F R OM E MP _ N M;

EMPNO SAL COMM SAL+COMM SAL+NVL(COMM,0)

7369 800 8007499 1600 300 1900 19007521 1250 500 1750 17507566 2975 29757654 1250 1400 2650 26507698 2850 28507782 2450 24507788 3000 3000

7839 5000 50007844 1500 0 1500 15007876 950 9507902 3000 3000

1 2 r o ws s e l e c t e d .

(x) Perform a query using DECODE.

S E L ECT NA ME , DE CODE ( NA ME , ' Ha mme r ' , ' Ma l l e t ' , ' S a w' , ' A x e ' ,' B a t t e r y ' , ' Ge n e r a t o r , Un a v a i l a b l e ' ) F ROM I T E M_ MA S T E R;

NAME DECODE(NAME,'HAMMER','MALLET','SA

Hammer MalletSaw AxeLawn Mover UnavailableDish Washer UnavailableBaking Oven UnavailableSpark Plug Unavailable

Alternator UnavailableBattery GeneratorPiston Unavailable

9 r o ws s e l e c t e d .

Sem 3: DBMS Practical File

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