c# select query to Oracle database throws “Custom type mapping for … is not specified or is invalid”
问题 I am trying to map a simple Oracle UDT in my c# application. When I try to extract data from DataReader , it throws the following exception: Custom type mapping for 'dataSource='DB' schemaName='C##LAZAR' typeName='MATICNIBROJ_T'' is not specified or is invalid Oracle UDT is: create or replace TYPE "MATICNIBROJ_T" AS OBJECT ( MaticniBroj NUMBER(13) ) INSTANTIABLE NOT FINAL Custom class used for mapping: [OracleCustomTypeMapping("C##LAZAR.MATICNIBROJ_T")] public class MaticniBrojT :