■ Flush 명령문FLUSH [NO_WRITE_TO_BINLOG | LOCAL] { flush_option [, flush_option] ... | tables_option}flush_option: { BINARY LOGS | DES_KEY_FILE | ENGINE LOGS | ERROR LOGS | GENERAL LOGS | HOSTS | LOGS | PRIVILEGES | OPTIMIZER_COSTS | QUERY CACHE | RELAY LOGS [FOR CHANNEL channel] | SLOW LOGS | STATUS | USER_RESOURCES}tables_option: { TABLES | TABLES tbl_name [, tbl_name] .....