Difference in MySQL JOIN vs LEFT JOIN

Question

I have this cross-database query...

SELECT
            `DM_Server`.`Jobs`.*,
            `DM_Server`.servers.Description AS server,
            digital_inven         


        

Answer 1

No. When a type isn't specified, an INNER JOIN is used. To read up on differences; wikipedia

Answer 2

I believe the default is INNER JOIN if you just specify JOIN.

Answer 3

If you just mentioned JOIN in query by default it will be considered as a INNER JOIN.

Left join:Left join will take all the elements from Left table and only matching records from the Right table as Follows. example:

SELECT column_name(s)
FROM table_name1 #(Left table)
LEFT JOIN table_name2 #(Right table)
ON table_name1.column_name=table_name2.column_name

Hope this helps.

Answer 4

I thought that by not specifying a type of join it was assumed to be a LEFT JOIN. Is this not the case?

No, the default join is an INNER JOIN.

Here is a visual explanation of SQL joins.

Inner join

Left join