--source include/not_embedded.inc # # only global # select @@global.report_host; --error ER_INCORRECT_GLOBAL_LOCAL_VAR select @@session.report_host; show global variables like 'report_host'; show session variables like 'report_host'; select * from information_schema.global_variables where variable_name='report_host'; select * from information_schema.session_variables where variable_name='report_host'; # # show that it's read-only # --error ER_INCORRECT_GLOBAL_LOCAL_VAR set global report_host=1; --error ER_INCORRECT_GLOBAL_LOCAL_VAR set session report_host=1;