Research On Techniques Of Temporal Databases Based On CPR

In terms of the requirement of storing and processing medical temporal information, the temporal DBMS technology is applied to the medical field and temporal DBMS based on Computer-based Patient Records (CPRs) is constructed. By adding specific temporal fields into a traditional relational database, we implement the storage structure of temporal information so that users can query specific temporal information further.Meanwhile, research on the valid-time indeterminacy in temporal information is focused. Its representation and querying is solved.