Several ways to write connection query

1. Inner join query
SELECT A. field, B. field... FROM table name 1 A, table name 2 B WHERE A. field 1=B. field 1;
SELECT A. field, B. field... FROM table Name 1 A INNER JOIN Table Name 2 B ON A. Field 1=B. Field 1;
SELECT A. Field, B. Field... FROM Table Name 1 A JOIN Table Name 2 B USING (Field 1);

2. Cross Join query
SELECT A. field, B. field... FROM table name 1 A, table name 2 B
SELECT A. field, B. field... FROM table name 1 A CROSS JOIN table name 2 B