连接两个表结果在 MySql 中显示为空白

Question

my problem is when i going to join two table altogather i ran into the problem with one table has data another table has no data but i want to display if data has one table it should display with another table blank . below query i tired but it is getting blank.

SELECT seats.busno, seats.seats, busbook.customer,busbook.mobile,seats.date 
FROM seats 
INNER JOIN busbook ON seats.busno=busbook.busno

Answer 1

if you want also not matching values you should use left join

SELECT seats.busno, seats.seats, busbook.customer,busbook.mobile,seats.date 
FROM seats 
LEFT JOIN busbook ON seats.busno=busbook.busno

Answer 2

INNER仅在表之间至少有 1 个匹配时才起作用。