使用join选择三个表中的查询

Question

我在Access 2010中有三个表（room_info，student_info，commodity_info）

1- room_info

room_id - autonumber - primary key
room_no - number
floor_no - text 
part_type - text
year_reserved - text

2- student_info

student_id - autonumber - primary key
student_name - text
college - text
dept - text
stage - text
card_id - number
mobile_No - number
room_id - number - foreign key

3- commodity_info

commodity_id - autonumber - primary key
chair - number
desk - number ..............
room_id - number - foreign key

我想创建一个select查询来从c＃中的这三个表中选择数据？

Answer 1

<强> INNER JOIN in MS-ACCESS

我无法为您提供完整的C# code，就像勺子喂食一样。

select *
from ((room_info
inner join student_info on room_info.room_id =student_info.room_id)
inner join commodity_info on room_info.room_id =commodity_info.room_id)