CHARACTER_SETS

The CHARACTER_SETS view contains details about the available character sets.

Column Description
CHARACTER_SET_NAME The name of the character set.
DEFAULT_COLLATE_NAME The default collation associated with the character set.
DESCRIPTION A brief description of the character set.
MAXLEN The maximum number of bytes needed to store a single character.

For more information, see the MySQL documentation: The INFORMATION_SCHEMA CHARACTER_SETS Table.