Additional Considerations

Consider the following carefully:

While you are not prevented by CA Datacom/DB from defining DATACOM VIEWs that contain overlapping columns, we recommend against the use of overlapping columns when alternate solutions are possible. We are not responsible for the integrity of data or the operation of a DBMS that has been maintained through a view containing overlapping columns.
When an array column is referenced as a single large CHAR column outside of any DATACOM VIEW, any default value for INSERT is applied once to the entire column. When referenced through a DATACOM VIEW, it is applied to each array element. This will change when view support is implemented outside of DATACOM VIEWs.