data - How to convert WKB to WKT?

how can i convert wkb to wkt form ...

i stored coordinates in wkb but now can it will display to use in wkt form

Answer

If you want to use PostGIS to do the conversion, you can choose from the following functions:

bytea WKB = ST_AsBinary(geometry);
text WKT = ST_AsText(geometry);

geometry = ST_GeomFromWKB(bytea WKB, SRID);
geometry = ST_GeometryFromText(text WKT, SRID);

More: http://postgis.net/docs/manual-1.5/ch04.html#OpenGISWKBWKT