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Temporal Database. Chap 2: A Prelude to Parametric Data. Fig 2.1 The personnel database. Fig 2.2 Snapshot of management at now. Fig 2.3 The management. TempSQL. TempSQL. The Select Statement. The Select Statement. The Select Statement. 2.2.14 Subqueries. 2.2.15 Aggregates.
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Temporal Database Chap 2: A Prelude to Parametric Data
2.4 Static Data, Snapshot Data, and Upward Compatibility
2.4 Static Data, Snapshot Data, and Upward Compatibility
2.7 A Model for Querying Incomplete Information Figure 2.15(a) shows a bitemporal SALARY value. When the future is of no concern to us, this can be represented more compactly as shown in Figure 2.15(b).
2.8 A Model for Querying Spatio-temporal Data Below is an example of a spatial-temporal database arising in agriculture. It consists Of the following for relations. Their spatial representation is shown in Figure 2.18, andtheir relational representation is shown in Figure 2.19.