Autor YouCode - http://www.youcode.com.ar/sql/inner-join-keyword-247
The INNER JOIN keyword selects all rows from both tables as long as there is a match between the columns in both tables.
SQL INNER JOIN Syntax
SELECT column_name(s) FROM table1 INNER JOIN table2 ON table1.column_name=table2.column_name;or
SELECT column_name(s) FROM table1 JOIN table2 ON table1.column_name=table2.column_name;
PS! INNER JOIN is the same as JOIN.
http://www.youcode.com.ar/sql/inner-join-keyword-247