Question

I have two tables.

Table A

+----+-------+--------+-------+-------+
| ID | First | Middle | Last  | Time  |
+----+-------+--------+-------+-------+
| 1  | John  | Alan   | Smith | 12:38 |
+----+-------+--------+-------+-------+
| 2  | John  | Alan   | Smith | 1:24  |
+----+-------+--------+-------+-------+
| 3  | John  | Alan   | Bauer | 1:24  |
+----+-------+--------+-------+-------+
| 4  | Sam   | Paul   | West  | 10:04 |
+----+-------+--------+-------+-------+

Table B

+----+
| ID |
+----+
| 2  |
+----+
| 4  |
+----+

From this, I need to create a SELECT query to get the rows of Table A with First, Middle and Last values that match the First, Middle and Last values for the IDs in Table B.

In other words, I need to get

Table C

+----+-------+--------+-------+-------+
| ID | First | Middle | Last  | Time  |
+----+-------+--------+-------+-------+
| 1  | John  | Alan   | Smith | 12:38 |
+----+-------+--------+-------+-------+
| 2  | John  | Alan   | Smith | 1:24  |
+----+-------+--------+-------+-------+
| 4  | Sam   | Paul   | West  | 10:04 |
+----+-------+--------+-------+-------+

So we selected row 2 and row 4, since they were in Table B, but we also selected row 1 because its First, Middle and Last values matched those in row 2.

We didn’t select row 3 because its Last value wasn’t in any of the rows from Table B.

I hope this makes sense. I’m not sure how to go about this. I was thinking about using a FULL OUTER JOIN on A and B, but then I wasn’t sure how to select the similar rows from there.

Answer 1

This should do the trick:

select A.* from TableA A
inner join TableA A2 on A.First = A2.First and A.Middle = A2.Middle and A.Last = A2.Last
and A2.ID in (select ID from TableB)