MySql唯一ID/从MySql中提取数据

我有一个关于从mysql数据库中提取唯一ID和数据的问题。当使用LEFT-JOIN-mysql命令和其他mysql命令连接表时，如何将唯一的ID附加到从mysql数据库提取的项上？他们是否需要为项目提供唯一的ID？谢谢大家

SELECT y.`name` AS `year` , ma.`name` AS make, mo.`name` AS model 
FROM bhph_car_models mo 
LEFT JOIN bhph_car_years `y` ON y.`id` = mo.`car_year_id` AND y.`active` =1 
LEFT JOIN bhph_car_makes ma ON ma.`id` = mo.`car_make_id` AND ma.`active` =1 
WHERE mo.`active` =1 
LIMIT 0 , 30

谢谢大家

SELECT y.`name` AS `year` , ma.`name` AS make, mo.`name` AS model 
FROM bhph_car_models mo 
LEFT JOIN bhph_car_years `y` ON y.`id` = mo.`car_year_id` AND y.`active` =1 
LEFT JOIN bhph_car_makes ma ON ma.`id` = mo.`car_make_id` AND ma.`active` =1 
WHERE mo.`active` =1 
LIMIT 0 , 30