Data models, database languages and database management systems

1991 ◽  
Vol 29 (02) ◽  
pp. 29-0950-29-0950
2002 ◽  
pp. 293-321 ◽  
Author(s):  
Jose F. Aladana Montes ◽  
Mariemma I. Yague del Valle ◽  
Antonio C. Gomez Lora

Issues related to integrity in databases and distributed databases have been introduced in previous chapters. Therefore, the integrity problem in databases and how it can be managed in several data models (relational, active, temporal, geographical, and object-relational databases) are well known to the reader. The focus of this chapter is on introducing a new paradigm: The Web as the database, and its implications regarding integrity, i.e., the progressive adaptation of database techniques to Web usage. We consider that this will be done in a quite similar way to the evolution from integrated file management systems to database management systems.


2021 ◽  
Vol 310 ◽  
pp. 06001
Author(s):  
Alexey A. Kolesnikov ◽  
Pavel M. Kikin

An increasing number of database management systems are expanding their functionality to work with various types of spatial data. This is true for both relational and NoSQL data models. The article describes the main features of those data models for which the functions of storing and processing spatial data are implemented. A comparative analysis of the performance of typical spatial queries for database management systems based on various data models, including multi-model ones, is carried out. The dataset on which the comparison is performed is presented in the form of three blocks of OpenStreetMap vector data for the territory of the Novosibirsk region. Based on the results of the study, recommendations are made on the use of certain data models, depending on the available data and the tasks to be solved.


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