Question

I have 2 tables…

Table1:
ID, Name, Country
Table2:
ID, accountID, parent

table1.id = table2.acountID

My script does a search for all records with a particular parent.
I want to compare those results with table1 and return all entries that wern’t in the search.

eg.
Table1:

1, Bill, AU
2, Charles, US
3, Clare, CA

Table2:

1, 1, Mary
2, 1, William
3, 2, Henry

Search (select * from table2 WHERE accountID=’1′) returns:

1, 1, Mary
2, 1, William

and I want to get this results (from table1):

2, Charles, US
3, Clare, CA

Answer 1

SELECT * FROM table1 WHERE ID NOT IN
  (SELECT * FROM table2 WHERE accountID = '1')