Abstract
In the previous chapter, we discussed how to location-enable application data and how to organize geographic data into multiple tables, each containing SDO_GEOMETRY columns. In this chapter, we focus on storing and modeling different types of location information using the SDO_GEOMETRY data type in Oracle. The SDO_GEOMETRY type can store a wide variety of spatial data, including the following:
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A point, which can be used to store the coordinate location of, for example, a customer site, a store location, a delivery address, and so on
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A line string, which can be used to store the location and shape of a road segment
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A polygon, which can be used to store city boundaries, business regions, and so on
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Complex geometries, such as multiple polygons, which can be used to store boundaries for states such as Texas, Hawaii, and California
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References
ISO/IEC 13249-3:2003, “Information technology — Database languages — SQL multimedia and application packages — Part 3: Spatial,” http://www.iso.org/iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=31369.
Open GIS Consortium, “OpenGIS Simple Features Specification for SQL Revision 1.1,” http://www.opengis.org/docs/99-049_OnlinePDF.pdf, May 5, 1999.
For example, refer to John P. Snyder’s Flattening the Earth: Two Thousand Years of Map Projections (University of Chicago Press, 1997).
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© 2007 Ravi Kothuri, Albert Godfrind, Euro Beinat
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Kothuri, R., Godfrind, A., Beinat, E. (2007). The SDO_GEOMETRY Data Type. In: Pro Oracle Spatial for Oracle Database 11g. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4302-0446-6_4
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DOI: https://doi.org/10.1007/978-1-4302-0446-6_4
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Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-59059-899-3
Online ISBN: 978-1-4302-0446-6
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