NADAR SARASWATHI COLLEGE OF ENGINEERING &...

CS6312-DBMS DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING L.S.VIGNESH AP/CSE

NADAR SARASWATHI COLLEGE OF

ENGINEERING & TECHNOLOGY

Vadapudhupatti-Theni- 625531

Laboratory Manual

DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING

III SEMESTER / II YEAR

CS6312: DATABASE MANAGEMENT SYSTEMS


CS6312-DBMS Lab

LIST OF EXPERIMENTS

1. Creation of a database and writing SQL queries to retrieve information from the database.

2. Performing Insertion, Deletion, Modifying, Altering, Updating and Viewing records based on

conditions.

3. Creation of Views, Synonyms, Sequence, Indexes, Save point.

4. Creating an Employee database to set various constraints.

5. Creating relationship between the databases.

6. Study of PL/SQL block.

7. Write a PL/SQL block to satisfy some conditions by accepting input from the user.

8. Write a PL/SQL block that handles all types of exceptions.

9. Creation of Procedures.

10. Creation of database triggers and functions

11. Mini project (Application Development using Oracle/ Mysql )

a) Inventory Control System.

b) Material Requirement Processing.

c) Hospital Management System.

d) Railway Reservation System.

e) Personal Information System.

f) Web Based User Identification System.

g) Timetable Management System.

h) Hotel Management System


BASIC DDL COMMANDS

SQL> create table harishstudent(s_name char(15),rno integer,mark1 integer,mark2 integer,mark3

integer);

Table created.

SQL> desc harishstudent;

Name Null? Type

----------------------------------------- -------- ----------------------

S_NAME CHAR(15)

RNO NUMBER(38)

MARK1 NUMBER(38)

MARK2 NUMBER(38)

MARK3 NUMBER(38)

SQL> alter table harishstudent add(total integer);

Table altered.


Name Null? Type

----------------------------------------- -------- ----------------------

S_NAME CHAR(15)

RNO NUMBER(38)

MARK1 NUMBER(38)

MARK2 NUMBER(38)

MARK3 NUMBER(38)

TOTAL NUMBER(38)

SQL> alter table harishstudent modify(rno varchar2(4));


Table altered.


Name Null? Type

----------------------------------------- -------- ----------------------

S_NAME CHAR(15)

RNO VARCHAR2(4)

MARK1 NUMBER(38)

MARK2 NUMBER(38)

MARK3 NUMBER(38)

TOTAL NUMBER(38)

SQL> alter table harishstudent drop(rno);

Table altered.


Name Null? Type

----------------------------------------- -------- ----------------------

S_NAME CHAR(15)

MARK1 NUMBER(38)

MARK2 NUMBER(38)

MARK3 NUMBER(38)

TOTAL NUMBER(38)

SQL> insert into harishstudent values('Hari',78,89,90,257);

1 row created.

SQL> insert into harishstudent values('Jamaai',56,67,78,201);

1 row created.


SQL> insert into harishstudent values('Dober',65,54,43,162);

1 row created.

SQL> select*from harishstudent;

S_NAME MARK1 MARK2 MARK3 TOTAL

--------------- ---------- ---------- ---------- ----------

Hari 78 89 90 257

Jamaai 56 67 78 201

Dober 65 54 43 162

SQL> delete from harishstudent;

3 rows deleted.

SQL> drop table harishstudent;

Table dropped.


BASIC DML COMMANDS

SQL> create table harishclient(c_no varchar2(3),c_name varchar2(10), address varchar2(20),city

varchar2(15),state varchar2(5),bal_due number(10,2));

Table created.

SQL> desc harishclient;

Name Null? Type

----------------------------------------- -------- ----------------------

C_NO VARCHAR2(3)

C_NAME VARCHAR2(10)

ADDRESS VARCHAR2(20)

CITY VARCHAR2(15)

STATE VARCHAR2(5)

BAL_DUE NUMBER(10,2)

SQL> insert into harishclient values('101','Hari','5roads','salem','tn',2500);

1 row created.

SQL> insert into harishclient values('102','Harish','bazaar st','chsm','tn',1000);

1 row created.

SQL> insert into harishclient values('103','Jamaai','deevattipatty','salem','tn',0);

1 row created.

SQL> insert into harishclient values('104','Dober','leebazaar','salem','tn',400);

1 row created.


SQL> insert into harishclient values('105','Mathan','deevattipatty','hosur','tn',4000);

1 row created.

SQL> select*from harishclient;

C_N C_NAME ADDRESS CITY STATE BAL_DUE

--- ---------- -------------------- --------------- ----- ----------

101 Hari 5roads salem tn 2500

102 Harish bazaar st chsm tn 1000

103 Jamaai deevattipatty salem tn 0

104 Dober leebazaar salem tn 400

105 Mathan deevattipatty hosur tn 4000

SQL> create table harishproduct(pr_no varchar2(3),description varchar2(15),qty_bal

number(8),profit number(4,2),pur_Rs number(8,2),sell_Rs number(8,2));

Table created.

SQL> desc harishproduct

Name Null? Type

----------------------------------------- -------- ----------------------

PR_NO VARCHAR2(3)

DESCRIPTION VARCHAR2(15)

QTY_BAL NUMBER(8)

PROFIT NUMBER(4,2)

PUR_RS NUMBER(8,2)

SELL_RS NUMBER(8,2)

SQL> insert into harishproduct values('551','JamaaiIceCream',1000,50.8,5.25,12.5);

1 row created.


SQL> delete from harishproduct where description='JamaaiIceCream';

1 row deleted.

SQL> insert into harishproduct values('551','chocobar',1000,50.8,5.25,12.5);

1 row created.

SQL> insert into harishproduct values('551','vennila',250,28.9,2.12,5.0);

1 row created.

SQL> insert into harishproduct values('553','cone',1000,50.8,5.25,12.5);

1 row created.

SQL> insert into harishproduct values('554','mango',590,45,5.65,10);

1 row created.

SQL> select*from harishproduct;

PR_ DESCRIPTION QTY_BAL PROFIT PUR_RS SELL_RS

--- --------------- ---------- ---------- ---------- ----------

551 chocobar 1000 50.8 5.25 12.5

551 vennila 250 28.9 2.12 5

553 cone 1000 50.8 5.25 12.5

554 mango 590 45 5.65 10


SQL> select c_name from harishclient;

C_NAME

----------

Hari

Harish

Jamaai

Dober

Mathan

SQL> select*from harishclient where city='salem';


--- ---------- -------------------- --------------- ----- ----------




SQL> select c_name,city from harishclient where bal_due>=500;

C_NAME CITY

---------- ---------------

Hari salem

Harish chsm

Mathan hosur

SQL> select description from harishproduct;

DESCRIPTION

---------------

chocobar

vennila

cone


mango

SQL> select description,pr_no from harishproduct where pur_rs=5.25;

DESCRIPTION PR_

--------------- ---

chocobar 551

cone 553

SQL> select pr_no,qty_bal,profit,pur_rs,sell_rs from harishproduct;

PR_ QTY_BAL PROFIT PUR_RS SELL_RS

--- ---------- ---------- ---------- ----------

551 1000 50.8 5.25 12.5

551 250 28.9 2.12 5

553 1000 50.8 5.25 12.5

554 590 45 5.65 10

SQL> update harishclient set bal_due=0 where city='salem';

3 rows updated.



--- ---------- -------------------- --------------- ----- ----------






SQL> update harishproduct set sell_rs=2000,pur_rs=2000;


4 rows updated.



--- --------------- ---------- ---------- ---------- ----------

551 chocobar 1000 50.8 2000 2000

551 vennila 250 28.9 2000 2000

553 cone 1000 50.8 2000 2000

554 mango 590 45 2000 2000

SQL> update harishclient set city='bombay' where c_no='101';

1 row updated.



--- ---------- -------------------- --------------- ----- ----------

101 Hari 5roads bombay tn 0





SQL> update harishproduct set QTY_BAL=25 where PROFIT>50;

2 rows updated.




--- --------------- ---------- ---------- ---------- ----------

551 chocobar 25 50.8 2000 2000

551 vennila 250 28.9 2000 2000

553 cone 25 50.8 2000 2000

554 mango 590 45 2000 2000

SQL> update harishproduct set pur_rs=551 where pr_no='553';

1 row updated.



--- --------------- ---------- ---------- ---------- ----------

551 chocobar 25 50.8 2000 2000

551 vennila 250 28.9 2000 2000

553 cone 25 50.8 551 2000

554 mango 590 45 2000 2000

SQL> delete from harishproduct where QTY_BAL=25;

2 rows deleted.



--- --------------- ---------- ---------- ---------- ----------

551 vennila 250 28.9 2000 2000

554 mango 590 45 2000 2000

SQL> delete from harishclient where BAL_DUE<=1000;


4 rows deleted.



--- ---------- -------------------- --------------- ----- ----------


SQL> delete from harishproduct where PROFIT<30;

1 row deleted.



--- --------------- ---------- ---------- ---------- ----------

554 mango 590 45 2000 2000


SQL-DML COMMANDS

SQL> create table harishbook(isbn number(6),title varchar2(10),author varchar2(10),qty

number(4),price number(5,2));

Table created.

SQL> desc harishbook;

Name Null? Type

----------------------------------------- -------- ----------------------

ISBN NUMBER(6)

TITLE VARCHAR2(10)

AUTHOR VARCHAR2(10)

QTY NUMBER(4)

PRICE NUMBER(5,2)

SQL> insert into harishbook values(1439,'UNIX','Balaguru',5,189);

1 row created.

SQL> insert into harishbook values(1857,'SEQA','Sommer',8,200);

1 row created.

SQL> insert into harishbook values(1264,'JAVA','Ritche',3,200);

1 row created.

SQL> insert into harishbook values(1476,'DBMS','Swamy',7,195);

1 row created.

SQL> insert into harishbook values(1643,'MPMC','Krishna',5,125);


1 row created.

SQL> select*from harishbook;

ISBN TITLE AUTHOR QTY PRICE

---------- ---------- ---------- ---------- ----------

1439 UNIX Balaguru 5 189

1857 SEQA Sommer 8 200

1264 JAVA Ritche 3 200

1476 DBMS Swamy 7 195

1643 MPMC Krishna 5 125

SQL> select*from harishbook where price=200;


---------- ---------- ---------- ---------- ----------



SQL> select*from harishbook where price between 175 and 250;


---------- ---------- ---------- ---------- ----------





SQL> select*from harishbook where author like 'K%';


---------- ---------- ---------- ---------- ----------


SQL> select*from harishbook where author like '%y';



---------- ---------- ---------- ---------- ----------


SQL> update harishbook set price=price+2;

5 rows updated.



---------- ---------- ---------- ---------- ----------






SQL> update harishbook set qty=qty*2;

5 rows updated.



---------- ---------- ---------- ---------- ----------







SQL> select sqrt(price) from harishbook;

SQRT(PRICE)

-----------

13.820275

14.2126704

14.2126704

14.0356688

11.2694277

SQL> select floor(sqrt(price)) from harishbook;

FLOOR(SQRT(PRICE))

------------------

13

14

14

14

11

SQL> select ceil(qty) from harishbook;

CEIL(QTY)

----------

10

16

6

14

10

SQL> select sum(price) from harishbook;

SUM(PRICE)


----------

919

SQL> select avg(price) from harishbook;

AVG(PRICE)

----------

183.8

SQL> select min(qty) from harishbook;

MIN(QTY)

----------

6

SQL> select max(price) from harishbook;

MAX(PRICE)

----------

202


SQL COMMANDS USING CONSTRAINTS AND SUB QUERIES

SQL> create table departmen1(deptno number(6) primary key,dname varchar2(15) not null,location

varchar2(13) not null);

Table created.

SQL> insert into departmen1 values(1,'finance','newyork');

1 row created.

SQL> insert into departmen1 values(2,'marketting','thirupura');

1 row created.

SQL> insert into departmen1 values(3,'administration','dharmapuri');

1 row created.

SQL> insert into departmen1 values(4,'interiorde','thirunalveli ');

1 row created.

SQL> insert into departmen1 values(5,'transport','maadurai');

1 row created.

SQL> insert into departmen1 values(6,'travel','chennai');

1 row created.

SQL> insert into departmen1 values(7,'security','thirupura');


1 row created.

SQL> insert into departmen1 values(8,'imports','maadurai');

1 row created.

SQL> insert into departmen1 values(9,'exports','maadurai');

1 row created.

SQL> insert into departmen1 values(10,'food','dharmapuri');

1 row created.

SQL> select *from departmen1;

DEPTNO DNAME LOCATION

------ --------------- -------------

1 finance maadurai

2 marketting thirupura

3 administration dharmapuri

4 interiorde thirunalveli

5 transport maadurai

6 travel chennai

7 security thirupura

8 imports maadurai

9 exports maadurai

10 food dharmapuri

10 rows selected.

SQL> create table employ1(empno varchar2(4) primary key,ename varchar2(15),deptno

number(5)references departmen1,hiredate date,job varchar2(9),sal number(7,2),comm

number(7,2));


Table created.

SQL> insert into employ1 values(001,'ram',1,'19-jan-1991','manager',15000,3000);

1 row created.

SQL> insert into employ1 values(002,'harish',2,'06-may-1008','chiefexe',18800,8000);

1 row created.

SQL> insert into employ1 values(003,'raju',3,'01-may-1989','clerk',14555,567);

1 row created.

SQL> insert into employ1 values(004,'ramesh',4,'31-jan-1008','ca',17666,7564);

1 row created.

SQL> insert into employ1 values(005,'kumar',5,'29-apr-2000','account',20000,2000);

1 row created.

SQL> insert into employ1 values(006,'ragav',6,'09-dec-2001','manager',25000,2700);

1 row created.

SQL> insert into employ1 values(007,'raman',7,'11-nov-1008','clerk',25080,2430);

1 row created.

SQL> insert into employ1 values(008,'madan',8,'13-apr-2003','manager',28000,2420);

1 row created.


SQL> insert into employ1 values(009,'tommy',9,'19-apr-1991','ceo',28000,2500);

1 row created.

SQL> insert into employ1 values(010,'rajesh',10,'20-sep-2004','accounts',17000,2534);

1 row created.

SQL> select * from employ1;

EMPN ENAME DEPTNO HIREDATE JOB SAL COMM

---- --------------- ---------- --------- --------- ---------- ----------

001 ram 1 19-JAN-91 manager 15000 3000

002 harish 2 06-MAY-99 chiefexe 18800 8000

003 raju 3 01-MAY-89 clerk 14555 567

004 ramesh 4 31-JAN-99 ca 17666 7564

005 kumar 5 29-APR-00 account 20000 2000

006 ragav 6 09-DEC-01 manager 25000 2700

007 raman 7 11-NOV-99 clerk 25080 2430

008 madan 8 13-APR-03 manager 28000 2420

009 tommy 9 19-APR-91 ceo 28000 2500

010 rajesh 10 20-SEP-04 accounts 17000 2534

10 rows selected.

SQL> select * from employ1 where job='manager';


---- --------------- ---------- --------- --------- ---------- ----------

001 ram 1 19-JAN-91 manager 15000 3000




3 rows selected.

SQL> select *from employ1 where sal>(select min(sal) from employ1 group by deptno having

deptno=10);


---- --------------- ---------- --------- --------- ---------- ----------

002 harish 2 06-MAY-99 chiefexe 18800 8000

004 ramesh 4 31-JAN-99 ca 17666 7564

005 kumar 5 29-APR-00 account 20000 2000


007 raman 7 11-NOV-99 clerk 25080 2430


009 tommy 9 19-APR-91 ceo 28000 2500

7 rows selected.

SQL> select max(sal) from employ1 group by job having job='manager';

MAX(SAL)

----------

28000

1 row selected.

SQL> select job,max(sal) from employ1 group by job;

JOB MAX(SAL)

-------- ----------

Account 20000

Accounts 17000

ca 17666


ceo 28000

chiefexe 18800

clerk 25080

manager 28000

7 rows selected.

SQL> select ename,deptno from employ1 x where hiredate=(select max(hiredate) from employ1 y

where x.deptno=y.deptno);

ENAME DEPTNO

--------------- ----------

ram 1

harish 2

raju 3

ramesh 4

kumar 5

ragav 6

raman 7

madan 8

tommy 9

rajesh 10

10 rows selected.

SQL> select to_char(hiredate,'yyyy'),count(empno) from employ1 group by

to_char(hiredate,'yyyy') having count(empno)=(select max(count(empno)) from employ1 group by

to_char (hiredate,'yyyy'));

TO_C COUNT(EMPNO)

---- ------------

1008 3


1 row selected.

SQL> select ename ||' has '|| trunc(months_between(sysdate,hiredate)/12) ||' years

'||trunc(mod(months_between(sysdate,hiredate),12))||' months '||' as length of service' "length of

service" from employ1;

length of service

--------------------------------------------------------------------------ram has 19 years 0 months as

length of service

harish has 10 years 9 months as length of service

raju has 20 years 9 months as length of service

ramesh has 11 years 0 months as length of service

kumar has 9 years 9 months as length of service

ragav has 8 years 2 months as length of service

raman has 10 years 3 months as length of service

madan has 6 years 10 months as length of service

tommy has 18 years 9 months as length of service

rajesh has 5 years 4 months as length of service

10 rows selected.

SQL> select ename,location from employ1,departmen1 where employ1.deptno=departmen1.deptno

and location='maadurai';

ENAME LOCATION

--------------- -------------

Ram madurai

Kumar madurai

Madan madurai

Tommy madurai

4 rows selected.


SQL> select ename,dname from employ1,departmen1 where employ1.deptno=departmen1.deptno;

ENAME DNAME

--------------- ---------------

ram finance

harish marketting

raju administration

ramesh interiorde

kumar transport

ragav travel

raman security

madan imports

tommy exports

rajesh food

10 rows selected.


SQL COMMANDS USING JOINS

SQL> create table custom(cusid number(2) primary key,cusname varchar2(15) not null);

Table created.

SQL> insert into custom values(01,'pradeep');

1 row created.

SQL> insert into custom values(02,'raajan');

1 row created.

SQL> insert into custom values(03,'siva');

1 row created.

SQL> insert into custom values(04,'ragav');

1 row created.

SQL> insert into custom values(05,'aadhi');

1 row created.

SQL> select * from custom;

CUSID CUSNAME

---------- ---------------

1 pradeep

2 raajan

3 siva


4 ragav

5 aadhi

5 rows selected.

SQL> create table orde(prodid number(3),prodname varchar2(15) not null,cusid number(2)

references custom);

Table created.

SQL> insert into orde values(950,'windows',01);

1 row created.

SQL> insert into orde values(654,'mach',02);

1 row created.

SQL> insert into orde values(105,'red hat OS',03);

1 row created.


1 row created.

SQL> insert into orde values(534,'chromeOS',05);

1 row created.

SQL> select * from orde;

PRODID PRODNAME CUSID

---------- --------------- ----------


950 windows 1

654 mach 2

105 red hat OS 3

089 windows 4

534 chromeOS 5

5 rows selected.

SQL> select custom.cusid,cusname,prodname from custom inner join orde on

custom.cusid=orde.cusid;

CUSID CUSNAME PRODNAME

---------- --------------- ---------------

1 pradeep windows

2 raajan mach

3 siva red hat OS

4 ragav windows

5 aadhi chromeOS

5 rows selected.

SQL> select custom.cusid,cusname from custom inner join orde on custom.cusid =orde.cusid

where prodname='windows';

CUSID CUSNAME

---------- ---------------

1 pradeep

4 ragav

2 rows selected.

SQL> select custom.cusid,cusname,prodid,prodname from custom left join orde on custom . cusid

= orde.cusid;


CUSID CUSNAME PRODID PRODNAME

---------- --------------- ---------- ---------------

1 pradeep 950 windows

2 raajan 654 mach

3 siva 105 red hat OS

4 ragav 089 windows

5 aadhi 534 chromeOS

5 rows selected.

SQL> select custom.cusid,prodid,prodname from custom right join orde on


CUSID PRODID PRODNAME

---------- ---------- ---------------

1 950 windows

2 654 mach

3 105 red hat OS

4 089 windows

5 534 chromeOS

5 rows selected.


UTILIZATION OF VIEW

SQL> create table harish1(name varchar2(20),rno number(5),marks number(5),primary key(rno));

Table created.

SQL> desc harish1;

Name Null? Type

----------------------------------------- -------- ----------------------

NAME VARCHAR2(20)

RNO NOT NULL NUMBER(5)

MARKS NUMBER(5)

SQL> insert into harish1 values('Narean',1001,350);

1 row created.

SQL> insert into harish1 values('Muzamil',1002,298);

1 row created.

SQL> insert into harish1 values('Raju',1003,375);

1 row created.

SQL> select*from harish1;

NAME RNO MARKS

-------------------- ---------- ----------

Narean 1001 350

Muzamil 1002 298

Raju 1003 375


SQL> create table harish2(rollno number(5),attendance number(5),primary key(rollno));

Table created.

SQL> desc harish2;

Name Null? Type

----------------------------------------- -------- ----------------------

ROLLNO NOT NULL NUMBER(5)

ATTENDANCE NUMBER(5)

SQL> insert into harish2 values(1001,90);

1 row created.


1 row created.


1 row created.

SQL> select*from harish2;

ROLLNO ATTENDANCE

---------- ----------

1001 90

1002 75

1003 85


SQL> create view harishview as select name,rno,marks,attendance from harish1,harish2 where

rollno=rno;

View created.

SQL> select*from harishview;

NAME RNO MARKS ATTENDANCE

-------------------- ---------- ---------- ----------

Narean 1001 350 90

Muzamil 1002 298 75

Raju 1003 375 85

SQL> select name,rno from harishview where rno=1001;

NAME RNO

-------------------- ----------

Narean 1001

SQL> update harishview set name='Ramesh' where name='Muzamil';

1 row updated.



-------------------- ---------- ---------- ----------

Narean 1001 350 90

Ramesh 1002 298 75

Raju 1003 375 85


SQL> update harishview set marks=325 where name='Ramesh';

1 row updated.



-------------------- ---------- ---------- ----------

Narean 1001 350 90

Ramesh 1002 325 75

Raju 1003 375 85

\


SQL COMMANDS USING JOINS

SQL> create table custom(cusid number(2) primary key,cusname varchar2(15) not null);

Table created.

SQL> insert into custom values(01,'pradeep');

1 row created.

SQL> insert into custom values(02,'raajan');

1 row created.

SQL> insert into custom values(03,'siva');

1 row created.

SQL> insert into custom values(04,'ragav');

1 row created.

SQL> insert into custom values(05,'aadhi');

1 row created.

SQL> select * from custom;

CUSID CUSNAME

---------- ---------------

1 pradeep

2 raajan

3 siva


4 ragav

5 aadhi

5 rows selected.

SQL> create table orde(prodid number(3),prodname varchar2(15) not null,cusid number(2)

references custom);

Table created.


1 row created.

SQL> insert into orde values(654,'mach',02);

1 row created.

SQL> insert into orde values(105,'red hat OS',03);

1 row created.


1 row created.

SQL> insert into orde values(534,'chromeOS',05);

1 row created.

SQL> select * from orde;

PRODID PRODNAME CUSID

---------- --------------- ----------


950 windows 1

654 mach 2

105 red hat OS 3

089 windows 4

534 chromeOS 5

5 rows selected.

SQL> select custom.cusid,cusname,prodname from custom inner join orde on


CUSID CUSNAME PRODNAME

---------- --------------- ---------------

1 pradeep windows

2 raajan mach

3 siva red hat OS

4 ragav windows

5 aadhi chromeOS

5 rows selected.

SQL> select custom.cusid,cusname from custom inner join orde on custom.cusid =orde.cusid

where prodname='windows';

CUSID CUSNAME

---------- ---------------

1 pradeep

4 ragav

2 rows selected.

SQL> select custom.cusid,cusname,prodid,prodname from custom left join orde on custom . cusid

= orde.cusid;


CUSID CUSNAME PRODID PRODNAME

---------- --------------- ---------- ---------------

1 pradeep 950 windows

2 raajan 654 mach

3 siva 105 red hat OS

4 ragav 089 windows

5 aadhi 534 chromeOS

5 rows selected.

SQL> select custom.cusid,prodid,prodname from custom right join orde on


CUSID PRODID PRODNAME

---------- ---------- ---------------

1 950 windows

2 654 mach

3 105 red hat OS

4 089 windows

5 534 chromeOS

5 rows selected.


PL/SQL PROGRAMS- PROCEDURES & FUNCTIONS

SQL> create table dept(deptno varchar2(6) primary key,deptname varchar2(15),location

varchar2(15));

Table created.

SQL> create table emp(empno varchar2(6) primary key,empname varchar2(10), deptno

varchar2(6),constraint dept foreign key(deptno) references dept (deptno),job varchar2(15),sal

number(7,2),comm number(6,2));

Table created.

SQL> desc dept

Name Null? Type

----------------------------------------- -------- ----------------

DEPTNO NOT NULL VARCHAR2(6)

DEPTNAME VARCHAR2(15)

LOCATION VARCHAR2(15)

SQL> desc emp

Name Null? Type

----------------------------------------- -------- ----------------

EMPNO NOT NULL VARCHAR2(6)

EMPNAME VARCHAR2(10)

DEPTNO VARCHAR2(6)

JOB VARCHAR2(15)

SAL NUMBER(7,2)

COMM NUMBER(6,2)

SQL> insert into dept values(1201,'HR','Chennai');

1 row created.


SQL> insert into dept values(1202,'Marketing','Covai');

1 row created.

SQL> insert into dept values(1203,'Exporting','Pondicherry');

1 row created.

SQL> select*from dept;

DEPTNO DEPTNAME LOCATION

------ --------------- ---------------

1201 HR Chennai

1202 Marketing Covai

1203 Exporting Pondicherry

SQL> insert into emp values(1051,'HarisH',1201,'Manager',12500,150);

1 row created.

SQL> insert into emp values(1089,'Muzamil',1203,'Chief',10000,120);

1 row created.

SQL> insert into emp values(1043,'Ramesh',1203,'Sales rep',9500,100);

1 row created.

SQL> insert into emp values(1045,'Guru',1203,'Sales rep',10000,100);

1 row created.


SQL> insert into emp values(1090,'Praveen',1202,'Rep',8500,90);

1 row created.

SQL> select*from emp;

EMPNO EMPNAME DEPTNO JOB SAL COMM

------ ---------- ------ --------------- ---------- ----------

1051 HarisH 1201 Manager 12500 150

1089 Muzamil 1202 Chief 10000 120

1043 Ramesh 1203 Sales rep 9500 100

1045 Guru 1203 Sales rep 10000 100

1090 Praveen 1202 Rep 8500 90

SQL> create or replace function nsal(n in number) return number as

2 cursor refemp is select sal from emp order by sal desc;

3 vsal emp.sal%type;

4 begin

5 open refemp;

6 loop

7 fetch refemp into vsal;

8 exit when refemp%rowcount=n;

9 end loop;

10 close refemp;

11 return vsal;

12 end;

13 /

Function created.

SQL> select nsal(2) from dual;


NSAL(2)

----------

10000

SQL> create or replace procedure empdisp(pdname in dept.deptname%type,pjob in emp.job%type)

as

2 cursor refemp(cur_dno emp.deptno%type) is select * from emp where deptno=cur_dno and

job=pjob;

3 edno dept.deptno%type;

4 eloc dept.location%type;

5 totsal emp.sal%type;

6 totcomm emp.comm%type;

7 grandtot emp.sal%type;

8 vemp emp%rowtype;

9 begin

10 totsal:=0;

11 totcomm:=0;

12 select deptno,location into edno,eloc from dept where deptname=pdname;

13 dbms_output.put_line('Department No: '||edno||' '||'Department Name:

'||pdname||' '||'Location: '||' '||eloc);

14 dbms_output.put_line(' Job: '||pjob);

15 dbms_output.put_line('Employee No Employee Name Salary

Commission');

16 open refemp(edno);

17 loop

18 fetch refemp into vemp;

19 exit when refemp%notfound;

20 dbms_output.put_line(vemp.empno||' '||vemp.empname||' '||vemp.sal||'

'||nvl(vemp.comm,0));

21 totsal:=totsal+vemp.sal;

22 totcomm:=totcomm+nvl(vemp.comm,0);

23 end loop;


24 dbms_output.put_line('Job Total :'||' '||totsal||' '||totcomm);

25 grandtot:=totsal+totcomm;

26 dbms_output.put_line('Grand Total:'||grandtot);

27 end;

28 /

Procedure created.

SQL> exec empdisp('HR','Manager');

Department No: 1201 Department Name: HR Location: chennai Job: Manager

Employee No Employee Name Salary Commission

1051 HarisH 12500 150

Job Total : 12500 150

Grand Total: 12650

PL/SQL procedure successfully completed.


PL/SQL PROGRAMS- TRIGGERS

SQL> create table accmaster(accno number(4) primary key,accname varchar2(20),opendate

date,acctype char,constraint ck_type check(acctype in('c','s','r')),bal number(9,2));

Table created.

SQL> create table acctrans(transno number(8) primary key,accno number(4),constraint acc foreign

key(accno) references accmaster(accno),transdate date,transamt number(9,2),transtype

char,constraint chk_trans check(transtype in('d','w')));

Table created.

SQL> insert into accmaster values(1001,'HarisH','25-mar-2000','s',1000);

1 row created.

SQL>insert into accmaster values(1002,'Muzamil','31-may-2000','r',1500);

1 row created.

SQL> insert into accmaster values(1003,'Subash','12-apr-2000','s',1750);

1 row created.

SQL> select*from accmaster;

ACCNO ACCNAME OPENDATE A BAL

---------- -------------------- --------- - ----------

1001 HarisH 25-MAR-00 s 1000

1002 Muzamil 31-MAY-00 r 1500

1003 Subash 12-APR-00 s 1750


SQL> create or replace trigger acc_update

2 after insert on acctrans

3 for each row

4 declare

5 vaccno acctrans.accno%type;

6 vtransamt acctrans.transamt%type;

7 vtranstype acctrans.transtype%type;

8 begin

9 vaccno:=:new.accno;

10 vtransamt:=:new.transamt;

11 vtranstype:=:new.transtype;

12 if vtranstype='d' then

13 update accmaster set bal=bal+vtransamt where accno=vaccno;

14 elsif vtranstype='w' then

15 update accmaster set bal=bal-vtransamt where accno=vaccno;

16 end if;

17 end;

18 /

Trigger created.

SQL> insert into acctrans values(500234,1001,'30-mar-2000',1000,'d');

1 row created.

SQL> insert into acctrans values(500238,1002,'17-apr-2010',300,'w');

1 row created.

SQL> insert into acctrans values(500236,1003,'31-mar-2010',50,'d');

1 row created.

SQL> select*from acctrans;


TRANSNO ACCNO TRANSDATE TRANSAMT T

---------- ---------- --------- ---------- -

500234 1001 30-MAR-00 1000 d

500238 1002 17-APR-10 300 w

500236 1003 31-MAR-10 50 d

SQL> create or replace trigger accmin

2 before insert on acctrans

3 for each row

4 declare

5 vaccno acctrans.accno%type;

6 vtransamt acctrans.transamt%type;

7 vtranstype acctrans.transtype%type;

8 vminbal accmaster.bal%type;

9 begin

10 vaccno:=:new.accno;

11 vtransamt:=:new.transamt;

12 vtranstype:=:new.transtype;

13 if vtranstype='w' then

14 select bal into vminbal from accmaster where accno=vaccno;

15 vminbal:=vminbal-vtransamt;

16 if vminbal<500 then

17 raise_application_error(-29329,'withdraw Is Not Possible');

18 elsif vminbal>500 then

19 update accmaster set bal=bal-vtransamt where accno=vaccno;

20 end if;

21 end if;

22 end;

23 /

Trigger created.


SQL> select*from accmaster;

ACCNO ACCNAME OPENDATE A BAL

---------- -------------------- --------- - ----------

1001 HarisH 25-MAR-00 s 2000

1002 Muzamil 31-MAY-00 r 1200

1003 Subash 12-APR-00 s 1800


STUDENTS FORM

CODINGS:

Dim db As Database

Dim rs As Recordset

Dim flag As Integer

Private Sub Form_Load()

Set db = OpenDatabase("C:\Documents and Settings\Administrator\Desktop\dbms.mdb")

Set rs = db.OpenRecordset("student")

MsgBox "connected"

Text1.Text = rs("sno")

Text2.Text = rs("sname")

Text3.Text = rs("mark1")

Text4.Text = rs("mark2")

Text5.Text = rs("total")

Text6.Text = rs("avg")

Text7.Text = rs("result")

End Sub

Private Sub CALCULATE_Click()

Text5.Text = Val(Text3.Text) + Val(Text4.Text)

Text6.Text = Val(Text5.Text) / 2

If Val(Text3.Text) > 25 And Val(Text4.Text) > 25 Then

Text7.Text = "PASS"

Else

Text7.Text = "FAIL"

End If

End Sub

Private Sub clear_Click()

Text1.Text = ""

Text2.Text = ""

Text3.Text = ""


Text4.Text = ""

Text5.Text = ""

Text6.Text = ""

Text7.Text = ""

End Sub

Private Sub DELETE_Click()

Dim x As String

x = MsgBox("do u want to delete?", vbYesNo, "delete")

If x = vbYes Then

MsgBox "deleted"

rs.DELETE

Else

MsgBox "not deleted"

End If

End Sub

Private Sub INSERT_Click()

rs.AddNew

End Sub

Private Sub SAVE_Click()

If rs.EditMode = dbEditAdd Then

rs("Sno") = Text1.Text

rs("sname") = Text2.Text

rs("mark1") = Text3.Text

rs("mark2") = Text4.Text

rs("total") = Text5.Text

rs("avg") = Text6.Text

rs("result") = Text7.Text

End If

rs.UPDATE

MsgBox "record added"

End Sub


Private Sub UPDATE_Click()

Adodc1.Recordset(0) = Text1.Text







Adodc1.Recordset.UPDATE

End Sub

Form Design:


Student Form with Record Added message:


Student Form with Deleted message:

Student Form with Input Data:


Student Form with Calculation of Total, Average and Result:


EMPLOYEE PAYROLL PROCESSING

CODINGS:

Dim db As Database

Dim rs As Recordset


Set db = opendatabase("C:\Documents and Settings\Administrator\Desktop\employee.mdb")

Set rs = db.openrecordset("employee")

MsgBox "connected"

End Sub

Private Sub Insert_Click()

rs.addnew

End Sub

Private Sub Save_Click()


rs("Eno") = Text1.Text

rs("Ename") = Text2.Text

rs("edept") = Text3.Text

rs("ejob") = Text4.Text

rs("basic") = Text5.Text

rs("pf") = Text6.Text

rs("da") = Text7.Text

rs("hra") = Text8.Text

rs("gross sal") = Text9.Text

rs("net sal") = Text10.Text

End If

rs.Update

MsgBox "record added"

End Sub

Private Sub Calculate_Click()


Text9.Text = Val(Text5.Text) + Val(Text7.Text) + Val(Text8.Text)

Text10.Text = Val(Text9.Text) - Val(Text6.Text)

End Sub

Private Sub Clear_Click()

Text1.Text = ""

Text2.Text = ""

Text3.Text = ""

Text4.Text = ""

Text5.Text = ""

Text6.Text = ""

Text7.Text = ""

Text8.Text = ""

Text9.Text = ""

Text10.Text = ""

End Sub

Form Design:


Employee Form with Input Entries:


Employee Form with Salary Calculation:

Employee Form with Record Added message:


LIBRARY MANAGEMENT SYSTEM

CODINGS:

Form 1:

Dim db As Database

Dim rs As Recordset


Set db = opendatabase("C:\Documents and Settings\NSIT\My Documents\lib.mdb")

Set rs = db.openrecordset("lib")

MsgBox "connected"

End Sub



rs("code") = Text1.Text

rs("desc") = Text2.Text

rs("total") = Text3.Text

End If

rs.Update

End Sub


rs.AddNew

End Sub

Private Sub Next_Click()

Form2.Show

End Sub

Form 2:

Dim db As Database

Dim rs As Recordset




Set rs = db.openrecordset("lib1")

MsgBox "connected"

End Sub


rs.AddNew

End Sub

Private Sub Delete_Click()

Dim xs As String

xs = MsgBox("Do u want to delete?", vbYesNo, "delete")

If xs = vbYes Then

rs.Delete

MsgBox "deleted"

Else

MsgBox "not deleted"

End If

End Sub



rs("acno") = Text1.Text

rs("author") = Text2.Text

rs("price") = Text3.Text

rs("sno") = Text4.Text

rs("btitle") = Text5.Text

rs("publication") = Text6.Text

rs("status") = Text7.Text

End If

rs.Update

End Sub


Private Sub Next_Click()

Form3.Show

End Sub

Form 3:

Dim db As Database

Dim rs As Recordset



Set rs = db.openrecordset("lib2")

MsgBox "connected"

End Sub


rs.AddNew

End Sub



rs("tno") = Text1.Text

rs("sname") = Text2.Text

rs("tdate") = Text3.Text

rs("sno") = Text4.Text

rs("acno") = Text5.Text

rs("ttype") = Text6.Text

rs.Update

End Sub

Design Form 1:


Design Form 2:

Design Form 3:


Save the data :


Insert the data:

NADAR SARASWATHI COLLEGE OF ENGINEERING &...

Documents

Transcript of NADAR SARASWATHI COLLEGE OF ENGINEERING &...