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Valid time

Known as: Valid-time 
In temporal databases, valid time (VT) is the time period during which a database fact is valid in the modeled reality. As of December 2011, ISO/IEC… Expand
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Related topics

Related topics

4 relations
SQL:2011Slowly changing dimensionTemporal databaseTransaction time

Papers overview

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2013
2013
Representation and Querying of Valid Time of Triples in Linked Geospatial Data
We introduce the temporal component of the stRDF data model and the stSPARQL query language, which have been recently proposed… Expand
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2002
2002
Adding Valid Time to XPath
In this paper we extend the XPath data model and query language to include valid time. XPath is a language for specifying… Expand
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1999
1999
Indexing Valid Time Databases via B+-Trees
We present an approach, named MAP21, which uses standard B/sup +/-trees to provide efficient indexing of valid time ranges. The… Expand
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1999
1999
The Valid Web: it’s Time to Go..
The development of the World Wide Web technology on the Internet is a major achievement of computer research in recent years. The… Expand
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Highly Cited
1998
Highly Cited
1998
Supporting valid-time indeterminacy
In valid-time indeterminacy it is known that an event stored in a database did in fact occur, but it is not known exactly when… Expand
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1998
1998
Indexing Valid Time Intervals
To support temporal operators and to increase the efficiency of temporal queries, indexing based on temporal attributes is… Expand
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Highly Cited
1996
Highly Cited
1996
Adding Valid Time to SQL/Temporal
This change proposal specifies the addition of tables with valid-time support into SQL/Temporal, and explains how to use these… Expand
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1994
1994
Relational Spatial Topologies for Historical Geographical Information
Abstract Research on time and data models for Geographical Information Systems (GIS) has focused mainly in the representation of… Expand
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Highly Cited
1994
Highly Cited
1994
Efficient evaluation of the valid-time natural join
Joins are arguably the most important relational operators. Poor implementations are tantamount to computing the Cartesian… Expand
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1993
1993
Valid-time indeterminacy
In valid-time indeterminacy, it is known that an event stored in a temporal database did in fact occur, but it is not known… Expand
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