 which case all records in the DBFetchGroup's entity are fetched.&nbsp; If <i>aSource</i> is a DBValue containing NULL, the effect is to clear the DBRecordList without fetching any new records.</font>

<p><font face="Times">Alternatively, <i>aSource</i> may be a DBValue that specifies a relationship.&nbsp; For example, suppose the relationship joins the entity called Department to the entity called Employees,&nbsp; containing the employees belonging to each department.&nbsp; The DBValue may contain a specif