Back قاعدة البيانات الزمنية Arabic Temporální databáze Czech Temporale Datenbank German Χρονική βάση δεδομένων Greek Base de datos temporal Spanish Base de données temporelle French 이력 데이터베이스 Korean Temporal database NB Temporalna baza danych Polish Хронологическая база данных Russian
A temporal database stores data relating to time instances. It offers temporal data types and stores information relating to past, present and future time. Temporal databases can be uni-temporal, bi-temporal or tri-temporal.
More specifically the temporal aspects usually include valid time, transaction time and/or decision time.
- Valid time is the time period during or event time at which a fact is true in the real world.
- Transaction time is the time at which a fact was recorded in the database.
- Decision time is the time at which the decision was made about the fact. Used to keep a history of decisions about valid times.