`information_schema.character_sets.character_set_name`

mysql

type: VARCHAR NOT NULL

5.7-8

type: NULL

Note:

Name of the character set.

5.1-10.8

type: VARCHAR NOT NULL

Note:

Name of the character set.

type: VARCHAR(32) NULL

Note:

The name of the character set.

4-6.1

type: SQL_IDENTIFIER NULL

Note:

Name of the character set, currently implemented as showing the name of the database encoding

10-15

type: SQL_IDENTIFIER

Note:

Name of the character set, currently implemented as showing the name of the database encoding

9.1-9.6

type: unknown

Note:

Name of the character set (i.e., the name of the database encoding). Always UTF8.