MySQL left Jion: is the left outer join (same as Right join)

Left Outer connection:

A left Jion B on a.id=b.id is a table data is not moving, B can and a corresponding to the data added to a table data

and the right outer connection:

Rignt Jion is to add a to b,b do not move, save all.

The left jion is the left outer join, which is shorthand.

Example:

SELECT *
From app_id_gx7 left OUTER JOIN Ad_network_app
On app_id_gx7.app_id = ad_network_app.app_id
where ad_network_app.ad_network_id=5

Tested to have the same effect as no outer.

MySQL left Jion: is the left outer join (same as Right join)