Based on a formal foundation presented elsewhere, we present the main aspects of an SQL-like, spatio-temporal query language, called STQL. As one of its essential features, STQL allows to …

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Integrating spatio-temporal data as abstract data types into already existing data models is a promising approach to creating spatio-temporal query languages. Based on a formal …

2 Extending SQL to STQL In this section we introduce the first part of the design of a spatio-temporal query language called STQL. We first sketch the underlying data model before we …

2000年12月27日 · We devise a new spatiotemporal database query language, named STQL, which is designed on the basis of a new standardized database query language, SQL3 and …

2002年1月1日 · Based on a formal foundation presented elsewhere, we present the main aspects of an SQL-like, spatio-temporal query language, called STQL. As one of its essential features, …

query language, called STQL. As one of its essential features, STQL allows to query and to retrieve moving objects which describe continuous evolutions of spatial objects over time.

2002年1月15日 · We review a spatiotemporal database query language, named STQL, which is on the basis of on going standardized database query language, i.e., SQL3, and standardized …

This work presents the main aspects of an SQL-like, spatio-temporal query language, called STQL, and provides a framework in STQL that allows a user to build more and more complex …

STQL queries are used in StackState to write advanced topology filters. An STQL query consists of component filters and functions . The query output is a component, or set of components, …