Archive | Database

Some Tools and Utilities for MySQL Tutorial for Beginners Part 3

Hello everyone welcome to MySQL tutorial for beginners part Three. Before starting MySQL we are going to see some tools and utilities for MySQL.We will these tools for the rest of the MySQL tutorial.

Some Tools and Utilities for MySQL Tutorial

There are many kinds of software available to manage database. We are going to use GUI instead of command-line interface for MySQL Tutorial. We will need the tools below :

1. Notepad++ : Notepad++ is one of the most widely used free source code editor for programming languages. Such as HTML, MySQL,PHP,CSS and lots more.

Notepad++ is windows Application but there is a way to install Notepad++ in MAC OSX. Download links for Notepad++ are bellow:

For Windows Users :
Download Notepad++ For Mac :
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MySQL Command Types MySql Tutorial for Beginners Part 2

Few Days ago we started MySQL for beginners tutorial. That was a quick intro about What is a database, What is Database table , What is SQL and Why do we use SQL? Today we will cover What are the types of MySQL database commands. Some readers asked why we are writing on MySQL Basics? We have readers learning MySQL for school or Job, We are Starting from Scratch on MySQL tutorial for beginners.You can Follow us on twitter to get latest updates on MySQL tutorial for beginners. Here is our Twitter


Types Of SQL Commands / Statements

SQL commands / statements are divided into few categories. Such as Data definition language (DDL), Data Manipulation Language (DML), Data Control Language (DCL), Transaction Control Commands.

1. Data Definition Language (DDL):  This SQL statements are used to define database schema such as the creation or deletion of a table. Here are some examples:

  • CREATE : This statement is used for creating objects in Database.
  • DROP: This statement is used for deleting objects from Database.
  • RENAME : This statement is used for renaming objects from Database.
  • ALTER : This statement is used for altering structure of the Database.
  • TRUNCATE : This statement removes all record from a table.TRUNCATE removes all rows from a table immediately after execution .

2. Data Manipulation Language (DML): This statement are used for manipulating data from objects in a Relational Database system. Here are some Examples bellow:

  • SELECT : SELECT is one of the most Used Command in SQL. To Retrieve from Data from Database we use SELECT statement.
  • INSERT : INSERT statement is used for inserting data into Database.
  • DELETE : This statement is used to remove rows from a table. You need to be extra with this command.After using a DELETE operation you need to COMMIT the transaction to make the change permanent.
  • UPDATE : This statement updates existing data within a table.

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MySQL Beginners Tutorial Introduction Part 1

Hello everyone!! today i am going to start a Mysql Beginners tutorial. In this tutorial, I will cover topics such as What is a database, What is Database table , What is SQL and Why do we use SQL?

1. What is a database and Database Management Systems?

Database is collection of organized information or data that can  easily be accessed managed and updated whenever is needed.

Database Management System (DBMS) is a system software There are many kinds of database management systems out there. Here are some example of popular Database Manage systems :
a. SQL
b. Sybase
c. Oracle
d. Microsoft Access
e. DB2

Database Management systems can be classified according to its structure. such as
a. Relational database :-In Relational Database Management systems(RDBMSs) database data are defined in such ways that it can be reorganized and accessed in a number of different ways. This kind of Database Management systems stores data in tables which has relationships to other tables.
b. Object oriented programming database :- In this database management system, the data is defined as object classes and sub classes.
c. Distributed database :- In this database management system, distributed database can be dispersed or replicated among different point in a network.

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