sql - Finding nearest neighbors between two tables with point locations in SpatiaLite?

I have started playing with SpatiaLite today and already stumbled upon a problem.

For each point location stored in tableOne I would like to select one, nearest (linear distance) point from tableTwo.

So far I came up with a clumsy solution that utilizes VIEW:

CREATE VIEW testview AS 
SELECT 
A.id , 
B.myValue, 
Distance(A.Geometry, B.Geometry) AS distance
FROM tableOne AS A, tableTwo AS B
WHERE distance < 10000
ORDER BY A.Id, distance;

And then:

SELECT * FROM testview
WHERE distance = (SELECT MIN(distance) FROM testview AS t WHERE t.id = testview.id)

seems to do the job.

Two questions:

Is there a way to perform such query without creating a VIEW?

Is there any other way to optimize this query for better performance? In a real world scenario tableOne will have hundreds-couple thousands records, and tableTwo - 1.3 million.

Answer

I have just tested this SQL and it works:

SELECT g1.OGC_FID As id1, g2.OGC_FID As id2, MIN(ST_Distance(g1.GEOMETRY,g2.GEOMETRY)) AS DIST
FROM table_01 As g1, table_02 As g2   
WHERE g1.OGC_FID <> g2.OGC_FID
AND ST_Contains(ST_Expand(g1.geometry,50),g2.geometry)
GROUP BY id1
ORDER BY id1

As you can read here "The naive way to carry out a nearest neighbour query is to order the candidate table by distance from the query geometry, and then take the record with the smallest distance".

Best regards,

Andrea