I think the output pictures for query 4 and query 5 are incorrect.

The output i generated from SQL for query 4 is:

InnerJoinTest1_PK InnerJoinTest2_PK

1 2

1 3

2 3

1 4

2 4

3 4

1 5

2 5

3 5

4 5

Output for query 5 is:

InnerJoinTest1_PK InnerJoinTest2_PK

1 1

1 2

2 2

1 3

2 3

3 3

1 4

2 4

3 4

4 4

1 5

2 5

3 5

4 5

5 5