About Pyramid data

Question

In GeoRaster WP,it says SDO_GEOR.generatePyramid can generates pyramid data for a GeoRaster object.
there are any examples about It . ths......

Answer 1

This is the sql I use to create Pyramids:
declare
gr mdsys.sdo_georaster;
begin
select georaster into gr
from RACINE where georid = 21 for update;
sdo_geor.generatePyramid(gr, 'resampling=NN');
update RACINE set georaster = gr where georid = 21;
commit;
end;
declare
gr mdsys.sdo_georaster;
begin
select georaster into gr
from RACINE where georid = 21 for update;
sdo_geor.generatePyramid(gr, 'resampling=NN');
update RACINE set georaster = gr where georid = 21;
commit;
end;
RACINE is the table
21 is the 21st image in the table
Hope this helps
Larry