MySQL Information Schema  /  The INFORMATION_SCHEMA GLOBAL_VARIABLES and SESSION_VARIABLES Tables

Chapter 26 The INFORMATION_SCHEMA GLOBAL_VARIABLES and SESSION_VARIABLES Tables

The GLOBAL_VARIABLES and SESSION_VARIABLES tables provide information about server status variables. Their contents correspond to the information produced by the SHOW GLOBAL VARIABLES and SHOW SESSION VARIABLES statements (see SHOW VARIABLES Statement).

Notes

  • The VARIABLE_VALUE column for each of these tables is defined as VARCHAR(1024). For variables with very long values that are not completely displayed, use SELECT as a workaround. For example:

    SELECT @@GLOBAL.innodb_data_file_path;