Learn SQL using Oracle Database

Oracle Database: Lecture – 01

Question: What is data? Answer: Every organization has some information needs. A library keeps a list of members, books, due dates, and fines. A company needs to save information about employees, departments, and salaries. These pieces of information are called data.

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Simple Exam Grading System

This is very simple grading system based on single subject marks. var mark=60 if(mark>60) { document.write(“pass”); } else{ document.write(“Fail”) } */ var mark=prompt(“Enter Mark”); if(mark>100) { document.write(“Invalid”); } else if(mark>90) { document.write(“A”); } else if(mark>80) { document.write(“B”); } else if(mark>70) { document.write(“C”); } else if(mark>60)...

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HTML form data retrieve using javascript

Javascript data retrieve from HTML Form: Js: function display(){ var fname=document.forms[‘myForm’][‘fname’].value; document.getElementById(‘demoName’).innerHTML=fname; var gender=document.forms[‘myForm’][‘gender’].value; document.getElementById(‘demoGender’).innerHTML=gender; var hobb=document.forms[0]; var hob =””; for(i=0; i<hobb.length;i++){ if(hobb[i].checked){ hob=hob+hobb[i].value+”, “; } } document.getElementById(‘demoGHobby’).innerHTML=hob; var en=document.forms[1]; var entry =””; for(i=0; i<en.length;i++){ if(en[i].checked){ entry=entry+en[i].value+”, “; } } document.getElementById(‘demoEntry’).innerHTML=entry; } HTML Form: <form...

JavaScript Problem-01

Question: We shall take some numbers like 1 to 10, From the mentioned numbers we shall print the odd numbers except 3 and 5 and at last also we shall make SUM of those odd number .

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Array Basic Expalanation

Array is a special type of variable that can hold/contain more than one value at a time. Look at the example bellow var city1=”Dhaka”; var city2=”New York”; var city3=”Sydney”; var city4=”London”; In the above example, there are four variables and every variable contain one value...