Advanced Temporal Queries
This chapter describes queries which join temporal tables within a temporal interval that consists of more than a single point in time. It presents a step-by-step account of how these queries do their work. Since each step in these queries can be carried out by standard nontemporal SQL, it illustrates how much of the complexity of managing temporal data is encapsulated within bitemporally capable DBMSs.
Keywords
assertion-time interval; coalesce; decoalesce; state; statement; withdraw
The series of steps involved in a DBMS processing each of the temporal queries described in the previous chapter or in this one, are algorithms for transforming those temporal queries into queries that can be carried out by standard ...
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