alter table cmc_car add column insurance decimal(10,2) default null comment '保险';
alter table cmc_car add column maintenance decimal(10,2) default null comment '维修';
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A5177U', `insurance` = 11, `maintenance` = 35.00 WHERE `car_id` = 1;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A1081W', `insurance` = 13, `maintenance` = 60.00 WHERE `car_id` = 2;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A2239Q', `insurance` = 8, `maintenance` = 46.00 WHERE `car_id` = 3;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A1686T', `insurance` = 10, `maintenance` = 60.00 WHERE `car_id` = 4;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A0T282', `insurance` = 8, `maintenance` = 60.00 WHERE `car_id` = 5;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A9802U', `insurance` = 12, `maintenance` = 32.00 WHERE `car_id` = 6;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A6106T', `insurance` = 11, `maintenance` = 10.00 WHERE `car_id` = 32;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川AQ259W', `insurance` = 8, `maintenance` = 13.00 WHERE `car_id` = 8;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A5U91Q', `insurance` = 8, `maintenance` = 46.00 WHERE `car_id` = 9;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川AEX607', `insurance` = 7, `maintenance` = 8.00 WHERE `car_id` = 10;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A99L3B', `insurance` = 6, `maintenance` = 14.00 WHERE `car_id` = 11;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A6692U', `insurance` = 9, `maintenance` = 10.00 WHERE `car_id` = 12;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川GAR907', `insurance` = 8, `maintenance` = 7.00 WHERE `car_id` = 13;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A3760U', `insurance` = 10, `maintenance` = 10.00 WHERE `car_id` = 14;
UPDATE `cmc_oa`.`cmc_car` SET `license_plate` = '川A1950R', `insurance` = 10, `maintenance` = 10.00 WHERE `car_id` = 15;

