Program to find Simple Interest and Compound Interest in PL/SQL

Prerequisite PL/SQL introduction

In PL/SQL code groups of commands are arranged within a block. A block group related declarations or statements. In declare part, we declare variables and between begin and end part, we perform the operations.

Given principal(p), rate(r), time(t), the task is to calculate the simple interest and compound interest.

Examples:

Input: p = 1500
       r = 5
       t = 3
Output: SI = 225, CI = 1736.44 

Input: p = 2700
       r = 7
       t = 8
Output: SI = 1512, CI = 4639.1

Formula for Simple Interest:
  \begin{math}  SI=(P*R*I)/100 \end{math}

Formula for Compound Interest:

  \begin{math}  CI = P * Power(1 + (R/100) ^ t) \end{math}
Where:
P: Principal (original amount)
R: Rate of Interest (in %)
T: Time period

Below is the required implementation:-

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  DECLARE
    --declaration of principal variable
    p  NUMBER(9, 2);
    ----declaration of rate variable
    r  NUMBER(9, 2);
    --declaration of time period variable
    t  NUMBER(9, 2);
    --declaration of simple interest variable
    si NUMBER(9, 2);
    ci NUMBER(9, 2);
BEGIN
    --Code Block Start 
    --assigning principal values
    p := 33000;
  
    --assigning rate  values
    r := 7;
  
    --assigning time period values
    t := 6;
  
    --To calculate SI by simple 
    --mathematical formula
    si := ( p * r * t ) / 100;
  
    ci := p * Power (1 + ( r / 100 ),t);
  
    --Print Result of SI.........
    dbms_output.Put_line('Simple Interest = '
                         ||si);
  
    dbms_output.Put_line('Compound interest = '
                         || ci);
END;
--End program   

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Output

Simple Interest = 13860
Compound interest = 49524.1
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