Information Schema SCHEMATA Table
The Information Schema SCHEMATA table stores information about databases on the server.
It contains the following columns:
| Column | Description |
|---|---|
CATALOG_NAME |
Always def. |
SCHEMA_NAME |
Database name. |
DEFAULT_CHARACTER_SET_NAME |
Default character set for the database. |
DEFAULT_COLLATION_NAME |
Default collation. |
SQL_PATH |
Always NULL. |
SCHEMA_COMMENT |
Database comment. From MariaDB 10.5.0. |
Example
SELECT * FROM INFORMATION_SCHEMA.SCHEMATA\G
*************************** 1. row ***************************
CATALOG_NAME: def
SCHEMA_NAME: information_schema
DEFAULT_CHARACTER_SET_NAME: utf8
DEFAULT_COLLATION_NAME: utf8_general_ci
SQL_PATH: NULL
*************************** 2. row ***************************
CATALOG_NAME: def
SCHEMA_NAME: mysql
DEFAULT_CHARACTER_SET_NAME: latin1
DEFAULT_COLLATION_NAME: latin1_swedish_ci
SQL_PATH: NULL
*************************** 3. row ***************************
CATALOG_NAME: def
SCHEMA_NAME: performance_schema
DEFAULT_CHARACTER_SET_NAME: utf8
DEFAULT_COLLATION_NAME: utf8_general_ci
SQL_PATH: NULL
*************************** 4. row ***************************
CATALOG_NAME: def
SCHEMA_NAME: test
DEFAULT_CHARACTER_SET_NAME: latin1
DEFAULT_COLLATION_NAME: latin1_swedish_ci
SQL_PATH: NULL
...
From MariaDB 10.5.0:
SELECT * FROM INFORMATION_SCHEMA.SCHEMATA\G
...
*************************** 2. row ***************************
CATALOG_NAME: def
SCHEMA_NAME: presentations
DEFAULT_CHARACTER_SET_NAME: latin1
DEFAULT_COLLATION_NAME: latin1_swedish_ci
SQL_PATH: NULL
SCHEMA_COMMENT: Presentations for conferences
...
See Also
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https://mariadb.com/kb/en/information-schema-schemata-table/