How to fix the Oracle error ORA-13287: can’t transform unknown gtype?

In this post, you’ll learn more about the Oracle ErrorORA-13287: can’t transform unknown gtype with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-13287: can’t transform unknown gtype

Reason for the Error ORA-13287: can’t transform unknown gtype

A geometry with a gtype of <= 0 was specified for transformation. Only a gtype >= 1 is allowed.

How to fix the Error ORA-13287: can’t transform unknown gtype ?

You can fix this error in Oracle by following the below steps

Check the Oracle Spatial documentation for SDO_GTYPE values, and specify a value whose last digit is 1 or higher.