Schema Instance

SYNTAX:
schema_instance_id = simple_id .
Within an EDMexpressX^ mapping schema a population of the Source Schema is called a Schema Instance. A population of the Target Schema is called a Schema Instance as well. The schema instances are given names and these names are referenced within the EDMexpressX^ constructs to distinguish between the Source Schema and the Target Schema, and to distinguish between the population of the Source Schema and the population of the Target Schema.
GLOBAL
 DECLARE src INSTANCE OF SOURCE_SCHEMA source_geometry;
 DECLARE tar INSTANCE OF TARGET_SCHEMA target_geometry;
END_GLOBAL;