Fujitsu UDS/SQL V2.5 Network Router User Manual


 
Schema DDL Linking record types
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Sets and set occurrences are represented according to the following principle:
Figure 12: Representation of a set and its set occurrences
figure 12 shows all the owner record types, i.e. all set occurrences of a set. However only
member records that are part of a set occurrence are shown.
The member records form a logical sequence within a set occurrence. The sequence is
represented by arrows pointing from one member record to the corresponding successor.
Member record
Member
Member rec. 1
Member rec. 2
Member rec. 3
Set Set occurrence
Empty
Set occurrence
Set occurrence
Owner record Owner record
Owner record
Owner record
1type
2
3
record 4
type