Find the distance between two points in MYSQL. (using the Point Datatype)

Question

Suppose I have a 2 column table like this:

| user_id      | int(11) | NO   | UNI | NULL    |                |
| utm          | point   | NO   | MUL | NULL            


        

Answer 1

Solved. This is what I did:

where GLength(LineStringFromWKB(LineString(asbinary(utm), asbinary(@mypoint)))) < 9999999999999;

Answer 2

As far as I know, u have to try this way-

select * from mytable
   where 
    (
        GLength(
          LineStringFromWKB(
            LineString(
              geoPoint, 
              GeomFromText('POINT(51.5177 -0.0968)')
            )
          )
        )
      ) < 99999999

More in this answer.

Answer 3

You can also do it this way. Not sure if it's faster or not.

select * from mytable where glength(geomfromtext(concat('linestring(', x(utm), ' ', y(utm), ',20 20', ')'))) < 99999999