A spatial database is a database that is optimized to store and query data related to objects in space, including points, lines and polygons. While typical databases can understand various numeric and character types of data, additional functionality needs to be added for databases to process spatial data types. These are typically called geometry or feature. The open geospatial consortium created the simple features specification and sets standards for adding spatial functionality to database systems. OGC Homepage.
Database systems use indexes to quickly look up values and the way that most databases index data is not optimal for spatial queries. Instead, spatial databases use a spatial index to speed up database operations.
Inaddition to typical SQL queries such as SELECT statements, spatial databases can perform wide variety of spatial operations. This book will be of immense help to all those contemplating to acquire expert knowledge of Spatial Database D.
ABOUT THE AUTHOR Anil Jamwal
Er. Anil K. Jamwal holds Postgraduate qualification in Remote Sensing, Botany, Ecology & Environment. Presently he is the Principal Scientist at Geo-Informatics Institute of India, New Delhi offering M.Sc. Degree in Geo-Informatics under the aegis of Sikkim Manipal University of Health, Medical and Technological Sciences. He has guided more than 150 researchers for analyzing the satellite data with a view to executing programmes and projects related to forest development, river valley projects, hydroelectricity, rural and urban housing.
ABOUT THE AUTHOR Avinash Chiranjeev
Dr. Avinash Chiranjeev, M.S., Ph.D is the Head of the IT Division at the WIBP/IIEE International Network headquartered at New Delhi. He has been associated with the most important programmes of WIBP and IIEE related to computer assisted Non Formal and continuing Education Programme, Environmental Education Information Systems and Management, natural resources Database network besides organization and implementation of scientific and innovative researchers for the optimization of the available data.
ABOUT THE AUTHOR Azharul Haque
Mohd. Azharul Haque is a Scientist and National Counsellor at The Global Open University Nagaland. He has been the Chief of Training at Environmental Laboratory at the Indian Institute of Ecology an Environment New Delhi of conducting programmes related to pollution control including measurement of pH, condutivity, dissolved oxygen, BOD, COD, and other parameters. He has been participating in different congresses and conventions besides presenting his papers related to ecology, biochemistry, pollution, biotechnology.
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