Return all values not within a radius

Question

I am a new postgis user and I have a simple question. My intention is to know all point values that not have a line feature near (10 meters of tolerance) How can I do this?

I've tried to find by ST_Dwithin operator, but I need the opposite result. All line features are not within the point radius. Something similar to "not covered by..."

Answer 1

Just use a NOT EXISTS ( SELECT FROM WHERE ST_DWithin() )

SELECT *
FROM t1
WHERE NOT EXISTS (
  SELECT 1
  FROM t2
  WHERE ST_DWithin( t1, t2, m )
);

This will return all t1 not within m of t2