Function DbRResumeSelect() Foundation
Resumes a suspended relational restriction in a child work area.
DbRResumeSelect() --> NIL
The return value of DbRResumeSelect() is always NIL.
When a relation between two work areas is defined via SET RELATION..SELECT, a relational restriction is activated for the child work area. Only those records in the child work area become visible that comply with the current record in the parent work area. This restriction can be temporarily removed by calling DbRSuspendSelect(). This allows for accessing all records in the child work area. The relational restriction can then be re-activated by calling DbRResumeSelect().