需要连接 Mysql 中的两个表

Question

我需要连接两个表。但是不太明白需要用到哪个join语句。 LEFT、RIGHT、INNER 和 OUTER JOIN

Table_A

group_id	user_id	protocal_id	file_id	file_name	direction	mode
1	A001	TCP001	TCP_File001	file001	1	Active

Table_B

group_id	user_id	file_id	limit_s	limit_e	apgroup_id	ap_id	snd_rcv_mode	file_cate
1	A001	TCP_File001	13:00:00	13:30:00	GOG001	GO001	Auto	Text

输出应该是这样的

group_id	user_id	protocal_id	file_id	file_name	direction	mode	limit_s	limit_e	apgroup_id	ap_id	snd_rcv_mode	file_cate
1	A001	TCP001	TCP_File001	file001	1	Active	13:00:00	13:30:00	GOG001	GO001	Auto	Text

Answer 1

SELECT a.*,b.*
FROM Table_A as a
INNER JOIN Table_B as b ON a.group_id = b.group_id

Need to join two tables in Mysql