`information_schema.schemata.default_collation_name`

mysql

type: VARCHAR NOT NULL

5.7-8

mariadb

type: NULL

Note:

Default collation.

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5.1-10.8

type: VARCHAR NOT NULL

Note:

Default collation.

© 2022 MariaDB

10.2-10.7

tidb

type: VARCHAR(32) NULL

Note:

The default collation of the database.

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4-6.1

postgres

cockroachdb

mssql