This tutorial will tell you about data type which is used in

**MySQL**server. The version of MySQL which I used to write this tutorial is*So there might be some chance that some of the data type not supported in your MySQL version.***5.7.15.**

*So first thing is that what is Data type ?*
In general as we know that there are some number and characters.

Number represent the some values and values further can be divided into categories like integer, real.

In computer science there must be some equivalent representation to represent these values in computer or in a program. so every computer language have its equivalent representation to represent these number.

so now we look into MySQL data type.

we can categorized the MySQL data type -

1. Numeric Data Type

2. Date and Time Data Type

3. String (characters and bytes) Data Type

4. Spatial Data Type

## Numeric Data Type :

This data type is used for storing the number value.

This can be further categorized-

#### TINYINT -

**size :**A 1-byte integer.

**range**: signed integer is

*-128 to 127*and for un-signed is

*0 to 255*.

#### SMALLINT -

**size :**A 2-byte integer.

**range**: signed integer is

*-32,768 to*

*32,767*

**and for un-signed is**

*0 to 65,535.*

#### MEDIUMINT -

**size :**A 3-byte integer.

**range :**for this signed integer is

*-8,388,608 to 8,388,607*

**and for un-signed is**

*0 to 16,777,215.*

#### INT -

**size :**A 4-byte integer.

**range**

**:**signed integer is

*-2,147,483,648 to -2,147,483,647*and for un-signed is

*0 to 4,294,967,295.*

#### BIGINT -

**size :**A 4-byte integer.

**range**

**:**for this signed integer is

*-9,223,372,036,854,775,808 to*

*9,223,372,036,854,775,807*

**and for un-signed is**

*0 to 18,446,744,073,709,551,615*

#### DECIMAL -

A fixed point number (M,D).

**M**is the maximum number of digits is 65 and default 10

**D**is the maximum number of decimal points is 30 and default 0

#### FLOAT -

#### A small floating-point-number

**DOUBLE**-

#### A double precision floating-point-number.

####
**BIT -**

A bit data type is used to store bit-field value field Type (M), storing M of bits per value. default is

**1**and maximum**64**####
**BOOLEAN -**

Like tinyint , a value zero considered as

**false**and non-zero considered as**true**## Date and Time Data Type

#### DATE -

**format**: YYYY-MM-DD

**size:**3 bytes storage required

**range : '**1000-01-01' to '9999-12-31'

#### DATETIME -

**format**

**:**YYYY-MM-DD HH:MI:SS

**size :**8 bytes storage required

**range :**'1000-01-01 00:00:00' to '9999-12-31 23:59:59'

#### TIMESTAMP -

**format**

**:**YYYY-MM-DD HH:MI:SS

**size :**4 bytes storage required

**range :**'1970-01-01 00:00:00' to mid-year 2037

#### YEAR -

**format**

**:**YYYY or YY

**size :**1 byte storage required

**range :**1901 to 2155 (for YEAR(4)), 1970 to 2069 (for YEAR(2))

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