MySQL 8.0 Release Notes
MySQL 8.0 Source Code Documentation
A schema is a database, so the
SCHEMATA table provides information
about databases.
The SCHEMATA table has these columns:
CATALOG_NAMEThe name of the catalog to which the schema belongs. This value is always
def.SCHEMA_NAMEThe name of the schema.
DEFAULT_CHARACTER_SET_NAMEThe schema default character set.
DEFAULT_COLLATION_NAMEThe schema default collation.
SQL_PATHThis value is always
NULL.DEFAULT_ENCRYPTIONThe schema default encryption. This column was added in MySQL 8.0.16.
Schema names are also available from the SHOW
DATABASES statement. See
Section 13.7.6.14, “SHOW DATABASES Syntax”. The following statements are
equivalent:
SELECT SCHEMA_NAME AS `Database`
FROM INFORMATION_SCHEMA.SCHEMATA
[WHERE SCHEMA_NAME LIKE 'wild']
SHOW DATABASES
[LIKE 'wild']
You see only those databases for which you have some kind of
privilege, unless you have the global SHOW
DATABASES privilege.
Caution
Because any static global privilege is considered a privilege
for all databases, any static global privilege enables a user to
see all database names with SHOW
DATABASES or by examining the
SCHEMATA table of
INFORMATION_SCHEMA, except databases that
have been restricted at the database level by partial revokes.