Question

I have 2 tables

tb1
OLD_id | East | North
1      | 1000 | 2000

tb2
NEW_id | East | North
4000   | 1009 | 1995

For all records in “tb1” I need to find all records from “tb2” that match the following conditions

tb2.East between (tb1.East - 10) and (tb1.East + 10)
tb2.North between (tb1.North - 10) and (tb1.North + 10)

Output

OLD_id | Matching NEW_ID's | East Difference | North Difference
1      | 4000              | 9               | -5

Answer 1

Try this one –

SELECT t1.OLD_id, t2.new_id `Matching NEW_ID''s`, t2.East - t1.East `East Difference`, t2.North - t1.North `North Difference` FROM tb1 t1
  JOIN tb2 t2
  ON 
    t2.East BETWEEN t1.East - 10 AND t1.East + 10 AND
    t2.North BETWEEN t1.North - 10 AND t1.North + 10