Does MySQL Support Number Data Type?


Heather Bennett

Does MySQL Support Number Data Type?

MySQL is a popular relational database management system that provides various data types to store different kinds of information. When it comes to storing numeric data, MySQL offers several number data types that cater to different needs.

In this article, we will explore these number data types and their usage in MySQL.

Numeric Data Types in MySQL

MySQL provides a range of numeric data types that allow you to store integer and floating-point numbers with different levels of precision. These numeric data types are:

  • TINYINT: This is a small integer type that can store values from -128 to 127 or 0 to 255 if unsigned.
  • SMALLINT: Similar to TINYINT, this type can store larger integer values from -32,768 to 32,767 or 0 to 65,535 if unsigned.
  • MEDIUMINT: This type can hold medium-sized integers in the range of -8,388,608 to 8,388,607 or 0 to 16,777,215 if unsigned.
  • INT: INT is used for storing normal-sized integers ranging from -2,147,483,648 to 2,147,483,647 or 0 to 4,294,967,295 if unsigned.
  • BIGINT: This type allows you to store large integers ranging from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 or 0 to 18,446,744,073,709,551,615 if unsigned.
  • FLOAT: FLOAT is used for storing single-precision floating-point numbers. It can hold values from -3.402823466E+38 to -1.175494351E-38, 0, and from 1.175494351E-38 to 3.402823466E+38.
  • DOUBLE: DOUBLE is used for storing double-precision floating-point numbers with even greater range and precision compared to FLOAT.
  • DECIMAL: DECIMAL is used for storing fixed-point decimal numbers with user-defined precision and scale.

Selecting the Right Number Data Type

Choosing the appropriate number data type in MySQL is crucial as it affects the storage size, performance, and accuracy of your data. It’s important to consider the range of values you need to store and the level of precision required.

For example, if you only need to store small integers within a limited range, TINYINT or SMALLINT would suffice. On the other hand, if you are dealing with large integers or require higher precision for decimal numbers, BIGINT or DECIMAL would be more suitable.

Numeric Data Type Constraints

In addition to selecting the right number data type, you can also apply constraints such as NOT NULL, UNIQUE, PRIMARY KEY, etc., to enforce specific rules on your numeric columns.

For instance, you can specify that a column must have a unique value using the UNIQUE constraint, or you can define a column as the primary key to ensure its uniqueness and fast retrieval.


MySQL provides various number data types that cater to different numeric storage requirements. By choosing the appropriate data type and applying constraints, you can ensure efficient storage, accurate representation, and optimal performance for your numeric data in MySQL.

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