New answers tagged

1

As Aileen said, Oracle has no specific concept of an EMPTY geometry as differentiated from a straight NULL geometry. All spatial operations involving NULL geometries behave according to the regular rules for NULLs in relational algebra - put simply: anything combined with NULL is NULL. I just realized that there is specific syntax in the WKT notation to ...


3

This is the question/response I got from oracle's spatial expert in Europe in 2014. q: Does oracle have the concept of an empty geometry? If so can you give me an example? Would this be a valid way of creating an empty point? SDO_GEOMETRY(2001, NULL, SDO_POINT_TYPE(NULL, NULL, NULL), NULL, NULL) My initial reaction was there is no such thing as an empty ...



Top 50 recent answers are included