#IT #SQL #PostgreSQL #Datawarehouse #Datavault #Historisation #OLAP
Management of Temporal Data
The main purpose of this website is to present SQL code.
For theoretical background refer to:
“Managing Time in Relational Databases” by Tom Johnston & Randall Weis
or Wikipedia: https://en.wikipedia.org/wiki/Temporal_database
IT SQL PostgreSQL Datawarehouse Datavault Historisation
From Point in Time to Time Interval
To warm up – unitemporal: Unitemporal Data
Main point – bitemporal: Generate Bitemporal Intervals
Merge Time Slices
Merging adjacent time slices: Time Slice Compressor
Merging in bitemporal case: Time Slice Compressor
Join Temporal Tables
Join unitemporal Tables: Table Join
Join multi-temporal Tables: Multi-temporal Table Join
Overlap Free Time Slices
Overlap Free unitemporal: Overlap Free
Completeness of Time Slices
Gaplessness unitemporal: Gaplessness
Remarks
Comments on overlaps: Overlaps
Links
English Language
The World of Data: hdombrovskaya github
Bitemporal History: martinFowler
Wikipedia: Temporal Database
German Language
Wikipedia: Temporale Datenhaltung
Fachartikel: Temporale referenzielle Integrität
Literature
English Language
C.J. Date, Hugh Darwen, and Nikos Lorentzos. 2014. Time and Relational Theory, Second Edition: Temporal Databases in the Relational Model and SQL (2nd ed.). Morgan Kaufmann Publishers Inc., San Francisco, CA, USA.
Tom Johnston. 2014. Bitemporal Data: Theory and Practice (1st ed.). Morgan Kaufmann Publishers Inc., San Francisco, CA, USA.
Tom Johnston and Randall Weis. 2010. Managing Time in Relational Databases: How to Design, Update and Query Temporal Data. Morgan Kaufmann Publishers Inc., San Francisco, CA, USA.
Krishna Kulkarni and Jan-Eike Michels. 2012. Temporal features in SQL:2011. SIGMOD Rec. 41, 3 (October 2012), 34-43.
Richard Thomas Snodgrass. 1999. Developing Time-Oriented Database Applications in SQL. Morgan Kaufmann Publishers Inc., San Francisco, CA, USA.
ISO/IEC 9075-2:2011, Information technology — Database languages — SQL , 2011
Martin Kaufmann, Peter M. Fischer, Norman May, Donald Kossmann: Benchmarking Bitemporal Database Systems: Ready for the Future or Stuck in the Past? EDBT 2014: 738-749
Margy Ross, Ralph Kimball: The Data Warehouse Toolkit: The Definitive Guide to Dimensional Modeling
ISBN-13 : 978-1118530801
German Language
Modellierung von Business-Intelligence-Systemen von Michael Hahne, dpunkt.verlag
Thomas Myrach: Temporale Datenbanken in betrieblichen Informationssystemen: Prinzipien, Konzepte, Umsetzung (Teubner Reihe Wirtschaftsinformatik) 2005
The translations into English with help of http://www.deepl.com/translator#de/en/
Temporal Algorithms 