B SEM_MATCH Support for Spatial Queries

This appendix provides reference information for SPARQL extension functions for performing spatial queries in SEM_MATCH.

Note:

The SEM_MATCH table function is supported only if Oracle JVM is enabled on your Oracle Autonomous Database Serverless deployments. To enable Oracle JVM, see Use Oracle Java in Using Oracle Autonomous Database Serverless for more information.

To use these functions, you must understand the concepts explained in Spatial Support.

Note:

Throughout this appendix geomLiteral is used as a placeholder for orageo:WKTLiteral, ogc:wktLiteral, and ogc:gmlLiteral, which can be used interchangeably, in format representations and parameter descriptions. (However, orageo:WKTLiteral or ogc:wktLiteral is used in actual examples.)

This appendix includes the GeoSPARQL and Oracle-specific functions which are explained in the following sections: