SDO_GEOR.setBlankCellValue

Format

SDO_GEOR.setBlankCellValue(
     georaster  IN OUT SDO_GEORASTER,
     value      IN NUMBER);

Description

Sets (modifies) the cell value to be used for all cells if a specified GeoRaster object is a blank GeoRaster object.

Parameters

georaster

GeoRaster object.

value

Cell value to be used for the blank GeoRaster object. Cannot be a null value.

Usage Notes

In a blank GeoRaster object, all cells have the same cell value.

The GeoRaster object is automatically validated after the operation completes.

To return the blank cell value of a blank GeoRaster object, use the SDO_GEOR.getBlankCellValue function. To determine if a specified GeoRaster object is a blank GeoRaster object, use the SDO_GEOR.isBlank function.

An exception is raised if value is null or inconsistent with the cellDepth specification, or if the GeoRaster object is not blank.

Examples

The following example specifies a value of 255 to be used for all cells in the GeoRaster object column (GEORASTER) in the GEORASTER_TABLE table for the row with an GEORID column value of 1. (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=1 FOR UPDATE;
  sdo_geor.setBlankCellValue(grobj, 255);
  UPDATE georaster_table SET georaster = grobj WHERE georid=1;
  COMMIT;
END;
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