The Ultimate Guide to High Availability with MariaDB

Information Schema SCHEMATA Table

The Information Schema SCHEMATA table stores information about databases on the server.

It contains the following columns:

ColumnDescription
CATALOG_NAMEAlways def.
SCHEMA_NAMEDatabase name.
DEFAULT_CHARACTER_SET_NAMEDefault character set for the database.
DEFAULT_COLLATION_NAMEDefault collation.
SQL_PATHAlways NULL.
SCHEMA_COMMENTDatabase 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

Comments

Comments loading...
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.