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