Skip to main content

DIFFERENCE BETWEEN DBMS AND RDBMS

Sl.#DBMSRDBMS
1Introduced in 1960s.Introduced in 1970s.
2During introduction it followed the navigational modes (Navigational DBMS) for data storage and fetching.This model uses relationship between tables using primary keys, foreign keys and indexes.
3Data fetching is slower for complex and large amount of data.Comparatively faster because of its relational model.
4Used for applications using small amount of data.Used for complex and large amount of data.
5Data Redundancy is common in this modelKeys and indexes are used in the tables to avoid redundancy.
6Example systems are dBase, Microsoft Acces.Example systems are SQL Server,Oracle.

Comments

Popular posts from this blog

LECTURE BREAKUP OF PHP MYSQL

PHP+MYSQL Introduction Basic Syntax Variable & it's Scope I/O & Comment   String & it's Function Operator & Expression Decision Control Case Control Loop Control Arrays & Function Form Handling State Management - Cookies State Management - Session Mail Concept Working with File Date/Time Functions Introduction MySQL Environment Database Concept Datatype Query processing Statements  Query processing based on condition Database Connectivity Database Operation With GUI Import/Export Database

SCRIPT CODE FOR VALIDATION

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>form</title> <style type="text/css"> <!-- .style1 {color: #FF0000} --> </style> <script> function valid() { tname=document.frm.name.value; teid=document.frm.email.value; tmno=document.frm.phone.value; tmsg=document.frm.comment.value; if(tname=="") { alert("Pls. Fill Name"); document.frm.name.focus(); return false; } else if(teid=="") { alert("Pls. Fill Email"); document.frm.email.focus(); return false; } else if(tmno=="") { alert("Pls. Fill Mobile no"); document.frm.phone.focus(); return false; } else if(isNaN(tmno)) { alert(...

DIALOG BOX SHOW CODE IN SWING JAVA

import javax.swing.*; import java.awt.event.*; public class Dialog {   JFrame frame;   JPanel p;   public Dialog(){   frame = new JFrame("Show Message Dialog");   p=new JPanel();   JButton button = new JButton("Click Me");   button.addActionListener(new MyAction());     p.add(button);   frame.add(p);   frame.setSize(400, 400);   frame.setVisible(true);   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   }   public class MyAction implements ActionListener{   public void actionPerformed(ActionEvent e){   JOptionPane.showMessageDialog(frame,"My DialogBox");   }   }  public static void main(String[] args)  {     Dialog db = new Dialog();   } }