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Spatial Reference System Identifier

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SRID, the Spatial Reference IDentifier, specifies the coordinate system for a geometric object in GIS systems.


(A quick snippet from Oracle[1]):
The MDSYS.CS_SRS reference table contains over 900 rows, one for each valid coordinate system.

Note:
You should probably not modify, delete, or add any information in the MDSYS.CS_SRS table. If you plan to add any user-defined coordinate systems, be sure to use SRID values of 1000000 (1 million) or higher, and follow the guidelines in Section 5.5.


SRID Values
- 8307 - WGS 84 longitude/latitude