Page 18 - Modular_V2.0_SQL_Flipbook

11. Click on the Next button twice.

Tech Funda

The default user for MySQL is root and
by default it has no password.

12. Click on the Execute button.

13. Click on the Finish button.

DATA TYPES IN MYSQL

A data type defines a sort of value that a column will contain. In a database table, every column must
have a name and data type. Some of the data types in SQL are listed below:

DATA TYPE DESCRIPTION
INTEGER or INT Stores integer values (no decimal).
CHAR (n) Character string with fixed length of n.

VARCHAR (n) Character string with variable length of n.
Stores decimals values where ‘p’ is precision value (total no. of digits )
DECIMAL (p,s)
and ‘s’ is scale value (digits after decimal).
DATE Stores date in the format of YYYY-MM-DD values.
FLOAT( p) Stores float values where ‘p’ is precision value (include decimal numbers).

TIME Stores hour, minute and second values.
TIMESTAMP Stores year, month, day, hour, minute and second values.

CREATING A DATABASE

The CREATE DATABASE command is used to create a database in MySQL. The syntax to create a
database is:

CREATE DATABASE database_name;
For example,

CREATE DATABASE School;
After creating a database, you need to access the database by using the USE command in the
following way:

USE School;

16
Touchpad MODULAR (Ver. 2.0)