Information Schema USER_VARIABLES Table

MariaDB 10.2.0

The USER_VARIABLES table was introduced in MariaDB 10.2.0 as part of the user_variables plugin.

Description

The USER_VARIABLES table is created when the user_variables plugin is enabled, and contains information about user-defined variables.

The table contains the following columns:

Column	Description
`VARIABLE_NAME`	Variable name.
`VARIABLE_VALUE`	Variable value.
`VARIABLE_TYPE`	Variable type.
`CHARACTER_SET_NAME`	Character set.

Example

SELECT * FROM information_schema.USER_VARIABLES ORDER BY VARIABLE_NAME;
+---------------+----------------+---------------+--------------------+
| VARIABLE_NAME | VARIABLE_VALUE | VARIABLE_TYPE | CHARACTER_SET_NAME |
+---------------+----------------+---------------+--------------------+
| var           | 0              | INT           | utf8               |
| var2          | abc            | VARCHAR       | utf8               |
+---------------+----------------+---------------+--------------------+

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https://mariadb.com/kb/en/information-schema-user_variables-table/