DBMS Practicals Sem 3 Mca Idol | Shree Ram College

8/15/2019 DBMS Practicals Sem 3 Mca Idol | Shree Ram College

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UNIVERSITY OF MUMBAI

INSTITUTE OF DISTANCE AND OPEN LEARNING (IDOL)*

*(Institute of Distn!e E"u!tion (IDE) is #en$e")

CERTIFICATE

T%E E&PERIMENTS DULY SIGNED IN T%IS 'OURNAL REPRESENT

T%E BONAFIDE OR BY MST B%US%AN PRADEEP OLAMBEAR

IN SEMESTER III OF SECOND YEAR OF MASTER IN

COMPUTER APPLICATION (MCA) IN T%E COMPUTER

LABORATORY OF PCP CENTER SHREE RAM COLLAGE,BHANDUP FOR SUB'ECT DATABASE MANAGEMENT SYSTEM

DURING ACADEMIC YEAR +,-.+,/0

11111111111111111111

1111111111111111111111111111 LECTURE IN C%ARGE %EAD2 DEPARTEMENT OF

MCA

1111111111111111111111


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E&TERNAL E&AMINER

INDEX

SR. NO. TITLE SIGN

1CREATION OF BANKING ENTERPRISE DATABASE.

2CREATON OF EMPLOYEE TABLE

3CREATION OF DEPARTMENT TABLE

4TYPES OF CURSOR.

5CREATION OF FUNCTION.

6CREATION OF STORED PROCEDURE.

7CREATION OF PACKAGE.

8CREATION OF TRIGER.

9 RITE A BLOCK T!AT ACCEPTS NAME AND DISPLAY IT 5

TIMES IN OUTPUT SCREEN.

1" RITE A PL#S$L BLOCK T!AT ACCEPTS

PRINCIPAL%DURATION&IN MONT!S' AND RATE OF INTEREST

AND CALCULATE MATURITY AMOUNT.

11 RITE A BLOCK T!AT ACCEPTS RADIUS AND CALCULATE

AREA OF CIRCLE. USE PI AS CONSTANT.

12 RITE A BLOCK T!AT ACCEPTS NUMBER AND DISPLAY!ET!ER IT IS LESS T!AN% OR E$UAL% OR GREATER T!AN

1".


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Practical No.1

A()* C+,-(/0 / -0(0 E0,++(, D---,

Create table branch

(br_name varchar(15) primary key,

br_city varchar(1O),

asset int)

create table account

(acc_no varchar(1O) primary key,

br_name varchar(15),

balance int,

foeign key(br_name) references branch)

create table depositor

(cust_name varchar(15),

acc_no varchar(1O) foreign key references account,

foreign key(cust_name) references customer)

create table customer

(cust_name varchar(15) primary key,

cust_street varchar(20),

cust_city varchar(1O))

create table borrower

(cust_name varchar(15) foreign key references customer,

Loan_no varchar(15) foreign key references loan)

create table loan

(loan_no varchar(1O) primary key,

br_name varchar(15) foreign key references branch, account int)

insert into customer values(‘Adams’,’Spring’,’Pittsfield’)

insert into customer values(‘Brooks’, ‘Senator’, ‘Brooklyn’)

insert into customer values(‘Curry’,’North’,’Rey’)

insert into customer values(‘Glenn’, ‘Sand Hill’,’Woodside’)


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insert into customer values(GIenn’,’Walnut’,’Stamford’.)

insert into customer values(‘Hayes’,’Main’,’Harrison’)

insert into customer values(‘Johnson’,’AIma’,’Stamford’)

insert into custOmer values(‘Jones’,’ Main’’ Harrison’)

insert into customer values(‘Lindsay’,’Park’,’Pittsfield’)

insert into customer values(‘Smith’,’North’,’Rey’)

insert into customer values(‘Turner’,’Putnam’,’Stamford’)

insert Into customer values(‘William5’,’Nassau’,’Princeton’)

insert into depositor values(‘Hayes’,.’A- 102’)

insert into depositor values(‘Johnson’,’A-lOl’)

insert into depositor values(Johnson’,’A-201’)

insert into depositor values(‘Jones’,’A-217’)

insert into depositor values(Lindsay’, ‘A-222’)insert into depositor values(‘Smith’,’A-215’)

insert into depositor values(‘Turner’,’A-305’)

insert into branch values(‘Brighton’,’Brooklyn’,7100000)

insert into branch values(Downtown’,’Brooklyn’,9000000)

insert into branch values(‘Mianus’,’Horseneck’,400000)

insert into branch values(North Town’,’Rye’,3700000)

insert into branch values(‘Perryridge’,’Horseneck’, 17000000)

insert into branch values(‘Pownal’,’Bennington’,300000)

insert into branch values(‘Redwood’,’PaIo AIto’,2100000)insert into branch values(‘Round HiII’,’Horseneck’, 8000000)

select * from branch

insert into account values(‘A-101’,’Downtown’,500)

insert into account values(‘A-102’,’Perryridge’,400)

insert into account values(‘A-102’,’Brighton’,900)

insert into account values(‘A-215’,’Mianus’,700)

insert into account values(‘A-217’,’Brighton’,750)

insert into account values(‘A-222’,’Redwood’,700)insert into account values(‘A-305’,’Round Hill’,350)

select*from account

insert into loan values(‘L-11’,’Round Hill’,900)

insert into loan values(‘L- 14’,’Downtown’, 1500)

insert into loan values(‘L-15’,’Perryridge’,1500)


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insert into loan values(‘L-16’,’Perryridge’, 1300)

insert into loan values(L-17’,Downtown’,lOOO)

insert into loan values(‘L-23’,’Redwood’,2000)

insert into loan values(‘L-93’,’Mianus’,500)

select*from loan

insert into borrower values(‘Adams’, ‘L-16’)

insert into borrower values(‘Curry’,’L-93’)

insert into borrower values(‘Hayes’,’L-15’)

insert into borrower values(‘Johnson’,’L-14’)

insert into borrower values(‘Jones’,’L- 17’)

insert into borrower values(‘Smith’,’L-11’)

insert into borrower values(‘Smith’,’L-23’)

insert into borrower values(Williams’,’L-17’)

Select*from borrower

1.Find the names of all branches in the loan relation

Select br_name from loan

2. Find all loan numbers for loans made at the Perryridge branch with loan amount greater than

1200

Select l_no from loan where br_name=‘Perryridge’ and amount >1200

3,Find the loan number with loan amounts between 90,000 and 100000

Select l_no from loan where amount between 90000 and 100000

4. Find the customer names, loan numbers and loan amounts for all loans at the Perryridge

branch.

Select c_name, b.l_no, amount from borrower b,loan l where b.l_no=l.l_ho and

br_name=‘Perryridge’

5. Find all customers who have a loan from the bank, find their names, loan numbers and loan

amount

Select c_name, t.l_no,s,amount from borrower t, loan s where t.l_no=s.l_no


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6. Find the names of all branches that have assests greater than at least one branch located in

Brooklyn.

Select distinct t.br_name from branch t, branch s where t.assests>s.assests and

s.br_city=‘Brooklyn’

7. Find the names of allcustomerswhose street addressincludesthe substring ‘Main’

select c_name from customer where c_street like ‘%Main%’

8. Find in alphabetic order all customers who have a loan at the Perryridge branch.

Select distinct c_name from borrower b, loan l where b.l_no=l.l_no and br_name=‘Perryridge’

Order by c_name

9. Find all customers having a loan, an account or both at the bank

Select c_name from depositor

Union

Select c_name from borrower

10. Find all customers who have both a loan and an account at the bank.

Select c_name from depositor intersect Select c_name from borrower

11. Find the average account balance at each branch.

Select br_name, avg(bal) from account Group by br_name

12. Find the number of deposits for each branch

Select br_name, count(distinct c_name) from depositor d, account a where d.acc_no=a.acc_no

Group by br_name

13. Find the branch name whose average balance is greater than 1200.

Select br_name, avg(bal) from account Group By br_name Having avg (bal)>1200

14. Find the average bal for each customer who lives in Harrison and has at least 3 accounts.


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Select.d.c_name,avg(bal) from depositer d, account a, customer c where d.acc_no=c.acc_no

and d.c_name=c.c_name and c.city=‘Harison’ Group by d.c_name having count(distinct

d.acc_no)>=3

15. Find the loan numbers in the loan relation with null values for amount.

Selectl_no

From loan

Where amt is null

16.Find those customers who are borrowers from bank.

Select distinct c_name

From borrower

Where c_namein(select c_name From depositor)

17.Find all customers who both an account and a loan at the Perryridge branch


From borrower b,loan 1

Where b.1_no=1.1_no and br_name=‘Perryridge’ and (br_name,c_name)in

(select br_name,c_name

From depositor,account a

Where d.cc_no=a.acc_no)

18.Find all customers who do have a loan at the bank,but do not have an account at the

bank


From borrower

Where c_name not in (select c_name From depositor)

19.Find the names of all branches that have assets greater than those of atleast one

branch located in Brooklyn.

Select br_name

From branch

Where assets>some(select assets From branch Where br_city=‘Brooklyn’)


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20.Find the branch that has highest average balance

Select br_name

From branch

Group by br_nameHaving avg(bal)>some all(select assets from branch where

br_city=‘Brooklyn’)

21.Delete all account tuples in the Perryridge branch

Delete from account Where br_name=‘Perryridge’

22.Delete all loans with loan amount between 1300 and 1500

Delete from account

Where amount between 1300 and 1500

23.Delete ball account tuples at every branch located in Needham

Delete from account

where br_namein(select br_name From branch Where br_city= ‘needham’)


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Practical No.2

A()* C+,-(/0 / E)/,, T-,

Create table Employee ( EmpNo number(4), Ename varchar2(20), desig varcahr2(8), caderno

number(4), Doj date, Salary number(7,3), comm number(7,3), deptno number(2));

1.Make EmpNo as primary key.

A3te# t43e E$53o6ee "" !onst#int 57 5#i$#6 7e6 (e$5no)8

2.Select all employees who are under the manager disgnation or have salary grater than

10000.

Se3e!t E$5No2 En$e2 "esi92 s3#6 f#o$ E$53o6ee :;e#e "esi9n <

=Mn9e#> o# s3e6 ? ,++++0

3.List all employees whose name begin with@v

Se3e!t * f#o$ E$53o6ee :;e#e En$e 3i7e =>


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4.Display all employees with their salary listed in descending order.

Se3e!t * f#o$ E$53o6ee O#"e# 46 S3#6 Des!

5.Find the highest & lowest salaries & the difference between them.

Se3e!t M(s3#6)2 Min(s3#6)2 M(s3#6).Min(s3#6) f#o$ E$53o6ee0

6.Give a query to increase the salary of the manager to 10%.

U5"te E$53o6ee set S3#6 < ,0, * s3#6 :;e#e "esi9 < =Mn9e#>

7.Find the total salary & total commission of managers.

Se3e!t su$(s3#6)2 su$(!o$$) f#o$ E$53o6ee :;e#e "esi9 < =Mn9e#>

8.Display all employees who have joined on 10 may 2002.

Se3e!t * f#o$ E$53o6ee :;e#e "o < >,+.$6.++>

9.Fin" t;e e#9e s3#6 of AGM0

Se3e!t 9(s3#6) f#o$ e$53o6ee :;e#e "es9 < =AGM>


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Practical No.3

A()* C+,-(/0 / D,-+),0 T-,

Create table Depat ( DeptNo number(2), Dname varchar2(20), Location varcahr2(15));

1.Make DeptNo as primary key.

A3te# t43e Depat"" !onst#int 57 5#i$#6 7e6 ("e5tno)8

2.Give the command to view the details of tables Depat.

Des! De5t

3.Increase the column width by 1 for deptno in depat table.


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A3te# t43e "e5t $o"if6 "e5tno nu$4e#()8

4.Insert records in Depat table.

Inse#t Into De5t 3ues(+,2>e4>2>C;enni>)8

Inse#t Into De5t 3ues(+2>%R>2>Bo$46>)8

Inse#t Into De5t 3ues(+2>S3es>2>C;enni>)8

5.Select all records from Depat table

Se3e!t * f#o$ De5t0

Practical No.4

AIM* S: / C+/+

TYPES OF CURSORS

(1) Implicit Cursor

(2) Explicit Cursor

Implicit Cursor:

Th !"#$ m"#"%r &ci&& to tr"#s'r 'or mplos "cross r"#chs*+rit " P,-S., loc$ to "ccpt mplo

#umr "#& thc r"#ch #umr 'ollo/& up&"ti#% the r"#ch #umr o' th"t mplo to /hich h lo#%s

"ppropri"tl*0ispl" "# "ppropri"t mss"% usi#% S.,FOU30 "s& o# th xist#c o' th rcor& i# thE4P54STR t"l* 0ispl" "# "ppropri"t mss"% usi#% S.,3OTFOU30 "s& o# th #o#6xist#c o' th

rcor& i# th E4P54STR t"l*

BEGIN

UPDATE EMP;MSTR SET BRANC!;NOFOUND T!EN

DBMS;OUTPUT.PUT LINE&?EMPLOYEE SUCCESSFULLYTRANSFERRED@'*

END IF


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IF S$L>NOTFOUND T!EN

DBMS;OUTPUT.PUT;LLNE&@EMPLOYEE NUMBER DOES NOT EXIST@'

END IFEND*

Ex"mpl 2

FORRO+COU3TTh "#$ m"#"%r o' 0"r" 7"#8 r"#ch &ci&& to "cti"t "ll thos "ccou#ts9 /hich /r priousl m"r$& "s i#"cti 'or

pr'ormi#% #o tr"#s"ctio#s i# l"st ;< &"s +rit " P,-S., loc$ to up&"t th st"tus o' "ccou#ts* 0ispl" "# appropriate

mss"% "s& o# th "umr o' ro/s "''ct& th up&"t 'ir&*

DECLARE

ROS;AFFECTED C!AR&4'

BEGIN

UPDATE ACCT;MSTR SET STATUSROCOUNT >0 THEN

DBMS;OUTPUT.PUT;LINE&ROS;AFFECTED ACCOUNT&S' ACTIATED

SUCCESSFULLY@'

ELSE

DBMS;OUTPUT.PUT;LINE &@CURRENTLY T!ERE EXIST NO INACTIE

ACCOUNTS IN T!E DARYA GAN BRANC!@'

ENDIF*END*

OUTPUT*

2 ACCOUNT&S' ACTIATED SUCCESSFULLYP,-S., PROCE0URE SUCCESSFULLY COMPLETED.

Explicit Cursor:

Ex"mpl

Th "#$ m"#"%r &ci&& to m"r$ "ll thos "ccou#ts "s I#"cti(I) o# /hich thr "r #o tr"#s"ctio# pr'orm& i#

th l"st ;< &"s*/h#r "# such up&"t t"$s pl"c9 " rcor& 'or th s"m is m"i#t"i#& i# thI3=CT>E5=CCT5 4STR t"l comprisi#% o' th "ccou#t #umr9 th op#i#% &"t "#& th tp o' "ccou#t* +rit

" P,-S., loc$ to &o th s"m*

CRE=TE T=!,E I3=CT>5=CCT54STR(=CCT53O >=R?=R2( 1"'% OP30T 0=TE9 TYPE >=RC?=R(2))@ DECLARE

CURSOR C++; N/T+-0 IS

SELECT ACCT NO% STATUS% OPNDT% TYPE FROM ACCT MSTR

!ERE ACCT;NO IN&SELECT ACCT;NO FROM TRANS;MSTR

GROUP BY ACCT; NO !AING MAX&SYS DATE DT' 365'

+;ACCT;NO ACCT; MSTR.ACCT —NO>,


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+; STATUS ACCT;MSTR.STATUS>,:;OPNDT ACCT; MSTR.OPNDT>,

+;TYPE ACCT;MSTR.TYPE>,BEGIN

OPE3 Crsr53oTr"#s

IF Crsr53oTr"#sISOPE3 T?E3

,OOP

FETC? Crsr53oTr"#sINTO strACCT_NO,str5ST=TUS9&t5OP30T9 str5TYPE@

EAIT +?E3 Crsr53oTr"#s3OTFOU30@IF Crsr53oTr"#sFOU30 T?E3

UP0=TE =CCT54STR SET ST=TUSB’S’ +?ERE =CCT53OBstr5=CCT53O

INSERT INTOI3=CT5=CCT54STR >=,UES(str5=CCT53O9&t5OP30T9str5TYPE)@

E30IF:

E30 ,OOP@

CO44IT:E,SE

dbms _outputput.put_line(?unable toopcn Cursor’);END IF;

C,OSE crsr53otr"#s@E30@

Ex"mpl

+rit " P,-S., loc$ th"t /ill &ispl" th customr #"m9th 'ix& &posit #umr "#& th 'ix& "mou#t o' th

'irst < customrs hol&i#% th hi%hst "mou#t i# 'ix& &posits*

0ECI=RE

CURSOR Crsr5?iF0 IS SE,ECT '3=4E DD’ ‘DD,3=4E9F053O9=4T

FRO4 CUST 4STR C9=CCT5F05CUST50T,S =9F050T,S F+?ERE C*CUST53OB=*CUST53O =30 =*=CCT5F053OBF*F05SER53O

OR0ER !Y =4T 0ESC@Str53=4E >=RC?=R(


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Th "#$ m"#"%r h"s &ci&& to m"r$ "ll thos "ccou#ts "s i#"cti (I) o# /hich thr "r #o tr"#s"ctio#s pr'orm& i# th l"st;< &"s* +h#r "# such up&"t t"$s pl"c9 " rcor& 'or th s"m is m"i#t"i#& i# th I3=CT>5=CCT54STR t"l

comprisi#% o' th "ccou#t #umr9 th op#i#% &"t "#& th tp o' "ccou#t*

+rit " P,-S., loc$ to &o th s"m*

cr"t th t"l I3=CT>5=CCT54STR "s:

CRE=TE T=!,E I3=CT>5=CCT54STR(=CCT3( >=RC?=R2(1)9 OP30T 0=TE%TYPE >=RC?=R2(2))@

0EC,=RE

CURSOR Crsr53oTr"#s IS

SE,ECT =CCT53O9 ST=TUS* OP30T9TYPE FRO4 =CCT 4STR+?ERE =CCT53O I3(SE,EC =CCT53O FRO4 TR=3S54STR 7ROUP !Y =CCT53O ?=>I37 4=A(SYS0=TE6

0T);<

!E7I3

FOR 3o Tr"#s5Rc I3 Crsr53oTr"#s,OOP

UP0=TE =CCT54STR SET ST=TUSB’S’ +?ERE =CCT53OB#oTr"#s

Rc*=CCT NO

INSERT INTO INACTV_ACCT_MSTR

>=,UES (3oTr"#s5Rc*=CCT5 393otr"#s5Rc*OP30T9 3oTr"#sRc*TYPE)@E30 ,OOP@CO44IT

E30@

Out put:PI#SOL proc&ur succss'ull complt&*

Ex"mpl ;*

+iit " Pl-S., loc$ o' co& th"t /ill ),+, th :-- --(-, (0 H, #/l +,-,: -, NE;BR=3C?ES /ith H,

:-- --(-, (0 H, -, !R=3C?5 MSTR. ( H, &"t" i# th 'irst t"l "lr"& xist or th sco#& -, H-0 th"t :--

H/: , (,:.

CRE=TE T=!,E 3E+ !R=3C?ES(

!R=3C?3O >=RC?=R2(1O)*

3=4E >=RC?=R2 (2=,UES(‘!’9’4=?I4’)@

I3SERT I3TO 3E+5!R=3C?ES (!R=3C?53O9NAME)>=,UES(’!=,UES (’!G’9 ‘Th"#’)@

I3SERT I3TO 3E+5!R=3C?ES (!R=3C?53O9NAME)>=,UES (‘!H’9

‘Mulund’);

I3SERT I3TO 3E+5!R=3C?ES (!R=3C?53O9 3=4E)>=,UES(’!’9’Chr#ur’)@

I3SERT I3TO 3E+5!R=3C?ES (!R=3C?53O9NAME)>=,UES(‘!1’9 ‘Jh"r’)@

0EC,=RE

CURSOR Crsc5!r"#ch54str IS SE,ECT *FRO4 3E+5!R=3C?ES:

CURSOR Crsc5!r"#ch 5Ch$ (str5!R=3C?53=4E "rch"r2) IS


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SE,ECT !R=3C?53O FRO4 !R=3C?54STR +?ERE 3=4E =str5!R=3C?53=4E@

str5!R=3C?53O !R=3C? 4STR*!R=3C?*3Otp@

str5!R=3C?53=4E !R=3C? 4STR*!R=3C?*3=4Etp@

mast_ins_view>=RC?=R2(1)@!E7I3

OPE3 Crsr5!r"#ch54str@

,OOP

FETC? Crsr5!r"#ch54str I3TO str5!R=3C?53O9 str5!R=3C? 3=4E@

EAIT +?E3 Crsr5!r"#ch54str3OTFOU30@

OPE3 Crsr5!r"#ch5Ch$ (str5!R=3C?53=4E)@

FETC? Crsr5!r"#ch5Ch$ I3TO m"st5i#s5i/@

IF Crsr5!r"#ch5Ch$FOU30 T?E3

&ms5output*Put5,i#(’!r"#ch’DDstr5!R=3C?53=4E DD ‘xist*’)@E,SE

&ms5output*Put5,i#(’!r"#ch’DDstr5!R=3C?53=4E DD’does#ot xist* I#srti#%new r"#chinth

database’ );

I3SERT I3TO !R=3C?54STR >=,UES (str5!R=3C?53O9

str5!R=3C?53=4E)@

E30 IF@

C,OSE Crsr5!r"#ch5Ch$@

E30 ,OOP@

C,OSE Crsr5!r"#ch54str:

CO44IT@

E30@

P+-(- N/ 5

A()* +,-(/0 / 0(/0

Consider the tables TRANS_MSTR and ACCT_MSTR. both the tables belong to the banking

system. The TRANS_MSTR table is used to register the deposits or withdrawl,as performed. As

a batch process,the initial opening balance value must be written to the TRANS_MSTR table

whenever an account is opened with the bank. Write a PL/SQL block bf code that would insert a

record representing the opening balance entry in the TRANS_MSTR table each time an account

is opened. The insert in the TRANS MSTR table depends on ACCT_NO is not present in the

TRANS MSTR table.i.e. there is no entry made for the initial deposit, then a record is inserted in


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the TRANS_MSTR table representing the intial deposit ,then a record is inserted in the

TRANS_MSTR table representing the initial payment made while opening an account. If there is

already an entry.made for the initial payment ,i.e ACCT-NO is present in the TRANS MSTR table

then the insertion is skipped. To help simplify this process(of batch insertion)a function

CChkAcctNo has been created .The function checks for the existence of ACCT-NO in the table

TRANS_MSTR,the function has one argument,which receives a value. The function will search

for a matching value. in the TRANS_MSTR table when a value is passed to it when being

invoked.

The function will return 1 indicating that a match is found or 0 indicating that no match is found

this value returned by the function is used to make a decision to insert a’record or skip the

insertion in the TRANS_MSTR table.

Creation function for use

A stored function is created to perform the ACCT_NO check operation.CChkAcctNo is the nameof the function which accepts a variable ACCT_NO and returns a value to the host

environment .the value changes from (.i.e.if ACCT_NO.does not exist)to 1(.i,e.if ACCT_NOexists) depending on the records retrived.

Create or replace function F_CHKACCTNO(VACCT_NO IN VARCHAR2)

RETURN NUMBER IS

DUMMY ACCTNO VARCHAR2(10);

BEGIN

SELECT DISTINCT ACCT_NO INTO DUMMYACCTNO FROM TRANS_MSTR

WHERE ACCT_NO=VACCT_NO;—

RETURN 1;

EXCEPTION

WHEN NO_DATA_FOUND THEN RETURN 0;

END;

Output:

Function created.


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Calling the Function F_CHKACCTNO in A PL\SQL Code Block

DECLARE

CURSOR SCANTABLE IS SELECT ACCT_NO,TYPE FROM ACCT_MSTR;

MACCT_NO ACCT_MSTR.ACCT_NO%TYPE;

MTYPE ACCT_MSTR.TYPE%TYPE;

VALEXIST NUMBER(1);

BEGIN

OPEN SCANTABLE;

LOOP

FETCH SCANTABLE INTO MACCT_NO,MTYPE;

EXIT WHEN SCANTABLE%NOTFOUND;

VALEXISTS: =F_CHKACCTNO(MACCT_NO);

IF VALEXISTS=O THENIF MTYPE=’SB’ THEN

INSERT INTO TRANS_MSTR (TRANS NO,ACCT

NO,DT,TYPE,PARTICULAR, DR_CR,AMT, BALANCE)

VALUES((SELECT ‘T’||TO_CHAR(MAX(TO_NUMBER(SUBSTR(TRANS_NO,2)))+ 1)FROM

TRANS_MSTR),MACCT_NO,SYSDATE,’C’,’INITIAL PAYEMENT’,D,500,500);

ELSE

INSERT INTO TRANS_MSTR (TRANS NO,ACCT

NO,DT,TYPE,PARTICULAR DR_CR,AMT, BALANCE)

VALUES((SELECT ‘T’ ||

TOCHAR(MAX(TO_NUMBER(SUBSTR(TRANS_NO,2)))+ 1)FROM

TRANS_MSTR),MACCT_NO,SYSDATE/C,INITIAL PAYEMENT’,D’,200,200);

END IF;

END IF;

END LOOP;

CLOSE SCANTABLE;

COMMIT;

END;

Output

PL/SQL procedure successfully completed.

Deleting Function:


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DROP FUNCTION F_CHLACCTNO;

Practical No 6

A()* C+,-(/0 / /+,: P+/,:+,

Using a Procedure

Example:

The current example deals with the Fixed Deposits Maturity system. The tables involved with

this processing are FD_DTLS, Trans_MSTR and ACCT_MSTR. Whenever a fixed deposit is due

for payment and if there are instructions given to the bank for crediting the fixed deposit amount

on maturity to their account held in the bank, an entity is passed in the TRANS_MSTR table for

deposit of the fixed deposit amount as well as the acct_mstr table is updated to reflect the

increase of the current balance. Finally the status of that fixed deposits is updated to reflect the

increase of the current balance. Finally the status of that fixed deposit is updated as Mie.

Matured in the FD_DTLS table.In order to simplify the job of insertion and updating of three tables( Trans_MSTR, FD_DTLS

and ACCT_MSTR) each time a fixed deposit is due for payment a procedure is created. This

procedure is then called in the PL/SQL block while checking for those fixed deposits due for

payment.

Creating Procedure for use

A procedure called PROC_INSUPD is created and stored in the database. This procedure when

called in a PL/ SQL block updates the current balance in the ACCT_MSTR table and the status

in the FD_DTLS table. It also inserts an entry to register the credit of the fixed deposit amount in

the TRANSMSTR table.

TABLE CREATION FOR FD_DTLS

CREATE TABLE FD_DTLS(FD_NO INT,PAYTO_ACCTNO INT,DUEAMT INT);

INSERT INTO FD_DTLS VALUES(1,1,1500);




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CREATING PROCEDURE:

CREATE OR REPLACE PROCEDURE PROC_INSUPD(VFD NO IN

VARCHAR2,VACCTNO IN VARCHAR2,VAMT IN NUMBER)

IS

MCURBAL NUMBER;

BEGIN

SELECT CURBAL INTO MCURBAL FROM ACCT MSTR WHERE ACCT_NO=VACCT_NO;

INSERT INTO

TRANS_MSTR(TRANS_NO,ACCT_NO, DT,TYPE, PARTICULAR,DR_CR,AMT,BALANCE)

VALUES

((SELECT T||TO_CHAR(MAX(TO_NUMBER(SUBSTR(TRANS_NO,2)))+ 1)

FROM TRAN_SMSTR),VACCT_NO,SYSDATE,’C’,’FIXED DEPOSITPAYEMENT’,’D’,VAMT,(MCURBAL+VAMT));

UPDATE ACCT_MSTR SET CURBAL=CURBAL+VAMT WHERE ACCT_NO=VACCT_NO;

UPDATE FD_DTLS SET STATUS=M’ WHERE FD_NO=VFD_NO;

END;

DECLARE

CURSOR CRSR_FDCHK IS

SELECT FD_NO, PAYTO_ACCTNO,DUEAMT FROM FDDTLS

WHERE TO_CHAR(DUEDT,’DD-MM-YY’)=TO_CHAR(SYSDATE,DD-MM-YY’)

AND STATUS=’A‘ AND PAYTO_ACCTNO IS NOT NULL;MFD_NO VARCHAR2(1O);

MPAYTO_ACCTNO VARCHAR2(1O);

MAMT NUMBER(8,2);

MSTATE NUMBER:O;

BEGIN

OPEN CRSR_FDCHK;

LOOP

FETCH CRSR_FDCHK INTO MFD_NO,MPAYTO_ACCTNO,MAMT;

EXIT WHEN CRSR_FDCHK%NOTFOUND;

PRO_INSUPD(MFD_NO,MPAYTO_ACCTNO, MAMT);

M STATE: =1;

END LOOP;

IF MSTATE=O THEN

DBMS_OUTPUT.PUTLINE(’CURRENTLY THERE ARE NO FIXED DEPOSIT DUE FOR

PAYEMENT);

END IF;


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CLOSE CRSR_FDCHK;

COMMIT;

END;

OUTPUT:

Currently there are no fixed deposit due to payement.

PL/SQL procedure successfully completed.

Deleting a stored procedure

DROP PROCEDURE PROC_INSUPD;

P+-(- N/. 7

A()* C+,-(0 P--,

Th 'irst stp to cr"ti#% " p"c$"% is to cr"t its spci'ic"tio#* Th spci'ic"tio# &cl"r th o8cts th"t "r

co#t"i#& i# th o& o' th p"c$"%* = p"c$"% is cr"t& usi#% Or"cl’s S., K Plus i#r"cti tool* = p"c$"%c"# i#clu& Fu#ctio#s "#& Proc&urs* Th "ri"l &cl"r& /ithi# th p"c$"% c"# "ccss& "# Fu#ctio# or

Proc&ur /ithi# th P"c$"%* To cr"t " spci'ic"tio#9 issu th CRE=TE P=CJ=7E comm"#&:

Example 1:

CREATE OR REPLACE PACKAGE TRANSACTION_MGMT AS PROCEDURE

PERFORM TRANS(mACCT NO VARCHAR2, NUMBER MD VARCHAR2, AMT NUMBER);


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PROCEDURE CANCEL_FD(mFD_NO VARCHAR2);

BAL NUMBER;

P_ACCT_NO VARCHAR2(1O);

D_AMT NUMBER;

END TRANSACTION_MGMT;

Output:

Package created.

CREATE OR REPLACE PACKAGE BODY TRANSACTION_MGMT AS PROCEDURE

PERFORM_TRANS(mACCT_NO VARCHAR2, MD VARCHAR, AMT NUMBER) IS

BEGIN

SELECT CURBAL INTO BAL FROM ACCT MSTR WHERE ACCT_NO= mACCT_NO;

IF MD=’D’THEN

INSERT INTO TRANS_MSTR(TRANS_NO, ACCT NO, DT,TYPE, PARTICULAR, DR_CR,

AMT, BALANCE) VALUES(SELECT ‘T’ II TO_CHAR(TO_NUMBER(SUBSTR(TRANS_NO,2)))+1) FROM TRANS_MSTR), mACCT_NO, SYSDATE, ‘C’, ‘DEPOSIT’, MD,AMT,(BAL

+ AMT));

UPDATE ACCT_MSTR SET CURBAL=CURBAL+AMT

WHERE ACCT_NO=mACCTNO;

ELSE

IF AMT


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UPDATE ACCT_MSTR SET CURBAL=CURBAL+ D_AMT WHERE ACCT_NO

PACCT_NO;

DBMS_OUTPUT.PUTLINE(‘ Your FD is cancelled, the amount is credited to the

account number:’|| P_ACCT_NO);ELSE

DBMS_OUTPUT.PUTLINE(’ YOUR FD IS CANCELLED. COLLECT THE AMOUNT FROMTHE CASH COUNTER.’);

END IF;

UPDATE FD_DTLS SET STATUS=’C’ WHERE FDNO=mFD_NO;

END;

END TRANSACTION_MGMT;

OUTPUT:

Package body created.

INOKINGPACKAGE MEMBERS

To reference the variable BAL in the package named TRANSACTION_MGMT, the

referencing statement would be:

DECLARE Balance number;

BEGIN

IF TRANSACTION_MGMT.BAL< balance THEN

END IF;

The first procedure defined in the above package can be executed as follows:

EXECUTE TRANSACTION_MGMT. PERFORM_TRANS(’SBI’, ‘D’,SOOO);

OUTPUT:

PL/SQI procedure successfully completed.

or

CALL TRANSACTION_MGMT.PERFORM_TRANS(‘SBI’,’D’,SOOO);

Example 2:

Create a package comprising of a procedure and a function.

the function will:

Accept the branch number and calculate the number of employees in that branch and finally return the

number of employees

The procedure will:

accept the branch number

Using the function created will get the employee count for the branch number accepted

Based on the employee count a decision will be taken to delete the employees belonging to that

branch followed by deleting the branch.


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Package Specification

CREATE OR REPLACE PACKAGE PCK_DEL IS PROCEDURE

DEL_EMP_BRANCH(mBRANCH_NO VARCHAR2);

FU3CTIO3CNT EMP BRANCH(mBRANCH_NO VARCHAR2) RETURN NUMBER;E30PCK_DEL;

Output:

Package created.

Package Body

CREATE OR REPLACE PACKAGE BODY PCK_DEL IS PROCEDURE

DELEMP_BRANCH(mBRANCH_NO VARCHAR) IS noemp number;

BEGIN

noemp: =CNT_EMP_BRANCH(mBRANCH_NO);

IF noemp 0 THEN

DELETE EMP MSTR WHERE BRANCH_NO=mBRANCH_NO;

DBMS_OUTPUT.PUT_LINE(‘AII the employees belonging to the branch’

mBranchNoI‘deleted successfully’);DELETE Branch_MSTR WHERE BRANCH_NO= mBRANCHNO;

DBMS_OUTPUT.PUT_LINE(‘Branch’||mBRANCH_NO||‘deleted successfully’);END IF;

IF noemp=0 thenDBMS OUTPUT.PUT LINE(‘there exist no employee in the branch’);

end if;

IF noemp>=2 then

DBMS_OUTPUT.PUT_LINE(’There exist’||noempi||‘employee in the branch’

mBRANCH_NO||‘Skipping Deletetion’);END IF;

END;

FUNCTION CNT EMP BRANCH)mBRANCH_NO VARCHAR) RETURN NUMBER IS

noemp NUMBER;BEGIN

SELECT COUNT (*) INTO noemp FROM EMP_MSTR WHERE

BRANCH NO= mBRANCHNO;

RETURN noemp;

EXCEPTION WHEN NO_DATA_FOUND THEN

RETURN 0;


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END;

END PCK_DEL;

Output:

Package Body created.

OVERLOADING PROCEDURES AND FUNCTIONS

EXAM PIE 1:

Create a package to check that a numeric value is greater than zero and a date is

less than or equal to sysdate.

CREATE OR REPLACE PACKAGE CHECK_FUNC IS FUNCTION VALUE_OK(DATE_IN IN

DATE) RETURN VARCHAR2;FUNCTION VALUE_OK(NUMBER_IN IN NUMBER) RETURN VARCHAR2;

END;

OUTPUT:

PACKAGE CREATED.

CREATE OR REPLACE PACKAGE BODY CHECK FUNC IS FUNCTION VALUE_OK

(DATE_IN IN DATE) RETURN VARCAHR2 IS BEGIN

IF DATE_INO THEN

RETURN ‘OUTPUT FROM THE SECOND OVER LOADED FUNCTION:TRUE’;

ELSE

RETURN ‘OUTPUT FROM THE SECOND OVER LOADED FUNCTION: FALSE;

END IF;

END;

END;

OUTPUT:

package body created.

Example2:


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The bank manager decides to activate all those accounts, which were previously marked as

inactive or performing no transactions in last 365 days.

Create a package spec and a package body named ACCT_MNTC that includes two procedures

of the same name and the second procedure accepts branch name.

Package Specification:

CREATE OR REPLACE PACKAGE ACCT_MNTC IS PROCEDURE

ACT_ACCTS(vBRANCH_NO IN NUMBER);

PROCEDURE ACT ACCTS(vNAME IN VARCHAR2);END;

OUTPUT:

Package created.

Package Body:

CREATE OR REPLACE PACKAGE BODY ACCT_MNTC IS PROCEDURE

ACT_ACCTS(vBRANCH_NO IN NUMBER) IS

BEGINUPDATE ACCT_MSTR SET STATUS =‘A’

WHERE BRANCH NO=’B’ ||vBRANCH_NO AND STATUS =‘S’IF SQL%ROWCQNT> 0 THEN

DBMS OUTPUT. PUT_LINE(TO_CHAR(sQL%ROWCOUNT)|| ‘ACCOUNTS ACTIVATEDSUCCESSFULLY’);

ELSE

DBMS_OUTPUT. PUT_LINE(’CURRENTLY THERE EXIST NO INACTIVE ACCOUNTS IN

THE BRANCH NO’ || vBRANCH_NO);END IF;

END;PROCEDURE ACT_ACCTS(vNAME IN VARCHAR2) IS

BEGIN

UPDATE ACCT_MSTR SET STATUS= ‘A’ WHERE STATUS =‘S’

AND BRANCH_NO IN(SELECT BRANCH_NO FROM BRANCH_MSTR WHERE NAME=

vNAME);IF SQL%ROWCOUNT>0 THEN

DBMS_OUTPUT. PUT_LINE(TO CHAR(SQL%ROWC0UNT) || ‘ACCOUNTS ACTIVATED

SUCCESSFULLY’);

ELSE

DBMS_OUTPUT. PUT_LINE(’Currently there exist no Inactive Accounts in the branch’vName);


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END IF;

END;END ACCT_MNTC;

Output:

Package body created.

EXECUTE ACCTMNTC.ACTACCTS(1);

EXECUTE ACCT_MNTC.ACCT ACCTS(’Vile Parle’);

P+-(- N/ 8

A()* C+,-(0 T+(,+

Example1

Create a transparent audit system for a table CUST_MSTR. The system must keep track of the


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records that are being deleted or updated. The functionality being when a record is deleted or

modified the original record details and the date of operation are stored in the audit table, then

the delete or update operation is allowed to go through.

The table definition for audit system is given below.

CREATE TABLE AUDIT CUST(

CUST53OVARCHAR2(20),FNAME VARCHAR2(25),MNAME VARCHAR2(25),

LNAME VARCHAR2(25),DOB_INC DATE 3OTNULL,OCCUP VARCHAR2(25),

PHOTOGRAPH VARCHAR2(25),PANCOPY VARCHAR2(1),FQRM6O VARCHAR2(1),

OPERATION VARCHAR2(20),USERID VARCHAR2(20),OPDATE DATE);

Output:

Table created.

CREATE TRIGGER AUDIT TRAIL

AFTER UPDATE OR DELETE ON CUST_MSTR

FOR EACH ROW

DECLARE

OPEN VARCHAR2(8);

BEGIN

IF UPDATING THENOPEN:=’UPDATE’;

END IF;

IF DELETING THENOPEN:=DELETE;

INSERT INTO AUDIT_CUST VALUES(:OLD.CUST NO,:OLD.FNAME, :OLD.MNAME,

:OLD, LNAME, : OLD.DOB IN,: OLDCOCCUP

:OLD. PHOTOGRAPH,: OLD.PANCOPY, OLD.FORM6O,OPER,USER,SYSDATE);

END;

Output:

Trigger created.

Example2

Write a data trigger on the TRANS MSTR that checks the following:

The account number for which the transaction is being performed is.a valid account number.

The Transaction Amount is not zero and is positive and In case of a withdrawal the amount does

not exceed the current balance for that account number.


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Create or replace trigger TRANS_CHECK

BEFORE INSERT ON TRANS MSTR ON EACH ROW

DECLARE

V_CNT_ACCT_NO VARCHAR2(20);

VCURBAL NUMBER(1O);

BEGIN

SELECT COUNT(ACCT_NO)INTO>5C 3T5=CCT53O

FROM ACCT_MSTR WHERE ACCT_NO= NEW,ACCT_NO;

IF VCNT_ACCT_N0=0 THEN

RAISE_APPLICATION_ERROR(-20000.’THE ACCOUNT NO IS INVALID’);

END IF;

IF NEW.AMT


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PRIMARY_KEY_VALUE VARCHAR2(1O);!E7I3

SELECT ‘C’ || TO_CHAR(CUST_SEQ.NEXTVAL)INTO

PRIMARY_KEY_VALUE FROM DUAL;

:NEW.CUST_NO:=PRIMARY_KEY_VALUE;

END;

Output:

Trigger created.

P+-(- N/. 9

A()* +(, - +/+-) H- -,, 0-), -0: :(- ( 5 (), (0 / +,,0.

0EC,=RE

3=4E >=RC?=R2(1


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P+-(- N/. 1"

A()* +(, - +/+-) H- -,, +(0(-% :+-(/0 &(0 )/0H'% -0: +-, / (0,+, = --,

M-+( A)/0

0EC,=RE

PRI3CIP=, 3U4!ER :B LPRI3CIP=,@

4O3T?S 3U4!ER :B L4O3T?S@

ROI 3U4!ER :B LROI

4=4OU3T 3U4!ER@

!E7I3

4=4OU3T :B PRI3CIP=, N (PRI3CIP=, K ROI-1) K 4O3T?S@

0!4S5OUTPUT*PUT5,I3E(4=4OU3T)@

E30

O *

PRI3CIP=, B

ROI B


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P+-(- N/. 11

A()* +(, - +/+-) H- -,, +-:( = --, A+,- / (+,. U, PI - C/0-0.

0EC,=RE

R=0IUS 3U4!ER :B L R=0IUS@

PI 3U4!ER :B *1@

=RE= 3U4!ER@

!E7I3

=RE=:B PI K (R=0IUS K R=0IUS)@

0!4S5OUTPUT*PUT5,I3E(‘=RE= IS ‘ DD=RE=)@

E30

O *

R=0IUS B

=RE= IS


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P+-(- N/. 12

A()* +(, - +/+-) H- -,, 0),+ = :(- JH,H,+ ( ( , H-0% /+ ,- /% /+ +,-,+

H-0 1".

0EC,=RE

3 3U4!ER :B E3 3U4!ER IS E.U=, TO 1’)@

E,SE IF 3 M 1 T?E3

0!4S5OUTPUT*PUT5,I3E(’7I>E3 3U4!ER IS ,ESS T?=3 1’)@

E,SE IF 3 1 T?E3

0!4S5OUTPUT*PUT5,I3E(’7I>E3 3U4!ER IS 7RE=TER T?=3 1’)@

E30 IF@

E30


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O *

7I>E3 3U4!ER IS ,ESS T?=3 1*

Documents

DBMS Practicals Sem 3 Mca Idol | Shree Ram College