The Ultimate Guide to High Availability with MariaDB

Information Schema USER_VARIABLES Table

Contents

  1. Description
  2. Example
  3. See Also

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:

ColumnDescription
VARIABLE_NAMEVariable name.
VARIABLE_VALUEVariable value.
VARIABLE_TYPEVariable type.
CHARACTER_SET_NAMECharacter set.

User variables are reset and the table emptied with the FLUSH USER_VARIABLES statement.

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               |
+---------------+----------------+---------------+--------------------+

See Also

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