MySQL Database and Tables

This tutorial demonstrates how to SQL statement that creates MySQL database tables in which to store data.
A simple database table look like this :

CREATE DATABASE  YOUR_DATABASE_NAME;

1	CREATE DATABASE YOUR_DATABASE_NAME;

In MySQL you can display a list of all databases by using this query :

SHOW DATABASES;

1	SHOW DATABASES;

Use an existing database using this query :

USE DATABASE_NAME;

1	USE DATABASE_NAME;

The SHOW TABLES; query used to display a list of all tables in a database, if this query return a “empty set” message there are no table in the database.

A MySQL table is created by this query :

CREATE TABLE IF NOT EXISTS table_name(col type, col type)

1	CREATE TABLE IF NOT EXISTS table_name(col type, col type)

e.g :

CREATE TABLE IF NOT EXISTS student (
  id int(8) NOT NULL,
  name varchar(8) NOT NULL,
  rollno int(10) NOT NULL
);

CREATE TABLE IF NOT EXISTS student (

id int(8) NOT NULL,

name varchar(8) NOT NULL,

rollno int(10) NOT NULL

);

You can discover the format of any table by using these two queries :

EXPLAIN table_name;
DESCRIBE table_name;

1 2	EXPLAIN table_name; DESCRIBE table_name;

Both query will return same result.
A table may also be deleted from a database with this query :

DROP TABLE table_name;

1	DROP TABLE table_name;