How Much Storage Does a MySQL `int(11)` Column Actually Use?

Column Data Size for int(11) in MySQL

Determining the storage size and capacity limitations of an int(11) column in MySQL is a fundamental aspect of database design.

Column Data Size

Contrary to the specified length of int(11), an INT data type consistently occupies 4 bytes of storage space. This applies regardless of the specified number. The representation of values with length padding affects data display, not storage.

Maximum Value Capacity

The maximum value that can be stored in an int(11) column depends on whether it is defined as signed or unsigned. For signed int, the maximum value is 2147483647, while for unsigned int, the maximum value is 4294967295.

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