1. An attempt to READ from a LOB into a buffer whose type was not compatible with the LOB type.
2. An attempt to WRITE a buffer into a LOB whose type was not compatible with the buffer type.
o EXEC SQL ALLOCATE/DEALLOCATE/GET/SET DESCRIPTOR
o EXEC SQL DESCRIBE OUTPUT/INPUT ... USING ... <descriptor>
o EXEC SQL EXECUTE ... INTO ...
o EXEC SQL EXECUTE ... USING ... <descriptor>
o EXEC SQL OPEN ... INTO ...
o EXEC SQL OPEN ... USING ... <descriptor>