PL-SQL BASIC PROGRAMS
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Transcript of PL-SQL BASIC PROGRAMS
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7/29/2019 PL-SQL BASIC PROGRAMS
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1) Display a Message using a simple PL/SQL
begin
Dbms_output.put_line('Have a nice day');
end;
2) Display a Message with a String Variable using PL/SQL
declare
message varchar2(30) := 'Welcome to PL/SQL Programming';
begin
dbms_output.put_line(message);end;
3) Write PL/SQL block that perform Sum of two numbers and displays it using
concatenation Operator.
declare
a integer:=25;
b integer:=32;
c integer;
begin
c := a+b;
dbms_output.put_line('a + b = ' || c);end;
4) Write a PL/SQL block that perform sum of two numbers with reading values from
keyboard.
declare
a integer:=:a;
b integer:=:b;
c integer;
begin
c := a+b;
dbms_output.put_line('a = ' || a);
dbms_output.put_line('b = ' || b);
dbms_output.put_line(a || ' + ' || b || ' = ' || c);
end;
5) Write a PL/SQL block to find a given number is even or odd.
declare
num integer:=:num;
begin
if (mod(num,2)=0) then
dbms_output.put_line( num || ' is even number.');
else
dbms_output.put_line( num || ' is odd number.');
end if;
end;
6) Write a PL/SQL block to read a number and print the number is
zero/positive/negative.
declare
num integer := :num;
begin
if (num > 0) then
dbms_output.put_line( num || ' is positive.');
elsif (num < 0) then
dbms_output.put_line( num || ' is negetive.');else
dbms_output.put_line( num || ' is equal to zero.');
end if;
end;
7) Write a program to print the grade with reading the marks.
declare
marks integer := :marks;
begin
if (marks >= 70) then
dbms_output.put_line('You got Distinction');
elsif (marks >= 60) thendbms_output.put_line('You got First Class');
elsif (marks >= 50) then
dbms_output.put_line('You got Second Class');
elsif (marks >= 35) then
dbms_output.put_line('You got Third Class');
else
dbms_output.put_line('You failed in the Subject');
end if;
end;
8) Write a program to print the biggest of three numbers.
declare
a integer := :a;
b integer := :b;
c integer := :c;
begin
if ( a > b ) then
if ( a > c) then
dbms_output.put_line( a || ' is the biggest number ');
else
dbms_output.put_line( c || ' is the biggest number ');
end if;
else
if ( b > c) thendbms_output.put_line( b || ' is the biggest number ');
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else
dbms_output.put_line( c || ' is the biggest number ');
end if;
end if;
end;
9) Write a program to print the reverse of a given number.
DECLARE
num1 integer;
num2 integer;digit integer;
rev integer :=0;
BEGIN
dbms_output.put_line('Enter the Number: ' );
num1 := :num;
num2 := num1;
WHILE (num1 > 0)
LOOP
digit := num1 mod 10;
rev := (rev*10)+digit;
num1 := trunc(num1/10);END LOOP;
dbms_output.put_line('The reverse of ' || num2 || ' is ' || rev);
END;
10) Write a PL/SQL Block that calculates Factorial of a given number.
declare
num integer:=10;
fact integer:=1;
begin
for i in 1..num
loop
fact:=fact*i;
end loop;
dbms_output.put_line('factorial of ' || num || ' is ' || fact);
end;
11) Write a PL/SQL Block that calculates Factorial of a given number with
Exceptional Handling.
declare
num integer := :num;
fact integer := 1;
begin
for i in 1 .. num
loopfact := fact*i;
end loop;
dbms_output.put_line('factorial of ' || num || ' is ' || fact);
exception
when value_error then
dbms_output.put_line('Over flow of number');
end;
12) . Display Details of an Employee given the Employee Number (using Implicit
Cursor).
DECLARE
v_eno number (3);
v_ename VARCHAR2(20);
v_salary number(10);
v_no number:=:Enumber;
BEGIN
SELECT empno,ename,salary INTO v_eno, v_ename, v_salary
FROM employee
WHERE empno=v_no;
DBMS_OUTPUT.PUT_LINE(v_eno||' '||v_ename||' '||v_salary);
ExceptionWhen no_data_found then
DBMS_OUTPUT.PUT_LINE(' no employee found ');
END;
