我需要在mysql同一个表“ride”中进行两个查询的内连接:
id| appointment_address|arrival_city| arrival_country|departure_city|departure_country|end_date|nb_places|price|start_date|travel_id|rank
第一个查询:
SELECT DISTINCT travel_id FROM ride WHERE departure_city LIKE <value> AND start_date > <value> OR departure_country LIKE <value> AND start_date > <value>;
第二个
SELECT DISTINCT travel_id FROM ride WHERE arrival_city LIKE <value2> AND start_date > <value> OR departure_country LIKE <value2> AND start_date > <value>;
感谢您的帮助。
答案 0 :(得分:1)
你可以这样做。
select *
from (SELECT DISTINCT travel_id FROM ride WHERE departure_city LIKE <value> AND start_date > <value> OR departure_country LIKE <value> AND start_date > <value>) firstQuery
Join
(SELECT DISTINCT travel_id FROM ride WHERE arrival_city LIKE <value2> AND start_date > <value> OR departure_country LIKE <value2> AND start_date > <value>) secondQuery on firstQuery.<field_to_join > = secondQuery.<field_to_join >