SDO_GEOR.setLayerID

Format

SDO_GEOR.setLayerID(
     georaster    IN OUT SDO_GEORASTER,
     layerNumber  IN NUMBER,
     id           IN VARCHAR2);

Description

Sets a user-defined identifier to be associated with a layer in a GeoRaster object, or deletes the existing value if you specify a null id parameter.

Parameters

georaster

GeoRaster object.

layerNumber

Number of the layer for which to perform the operation.

id

ID value to be associated with the specified layer in the GeoRaster object.

Usage Notes

The GeoRaster object is automatically validated after the operation completes.

To return the user-defined identifier value for a layer in a GeoRaster object, use the SDO_GEOR.getLayerID function.

An exception is raised if layerNumber is null or invalid for the GeoRaster object, or if id is null yet the corresponding layer information does exist.

Examples

The following example sets TM_Band_2 as the user-defined identifier value of layer 2 in the GeoRaster object (GEORASTER column) in the row with the GEORID column value of 4 in the GEORASTER_TABLE table. (The GEORASTER_TABLE table definition is presented after Example: Using storageParam Keywords in Storage Parameters.)

DECLARE
  grobj sdo_georaster;
BEGIN
  SELECT georaster INTO grobj FROM georaster_table WHERE georid=4 FOR UPDATE;
  sdo_geor.setLayerID(grobj, 2, 'TM_Band_2');
  UPDATE georaster_table SET georaster = grobj WHERE georid=4;
  COMMIT;
END;
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