Error inserting data into database using CDT

AFAIK,, if your CDT is having a PK and FK relation then this error might occur... i.e, your are trying to insert the child data without matching parent data...If that is the case please try to insert the parent row and then the child row into the database, Hope this helps!!!, else please attach the XSD or the relations which would be easy for the others to answer.. Thanks :)

Already a table is created in DB, for that table I am mapping my CDT.

BPMF_ORDR_SBMT.xsd

Can you confirm that an entry corresponding to that data exists in the parent table? And is the attached XSD for your parent or child?