Can not retrieve cell data content From BLOB object.

I have load Image into Georaster with Raster_Table following:
create table rdt_1 of mdsys.sdo_raster
(primary key (rasterId, pyramidLevel, bandBlockNumber,
rowBlockNumber, columnBlockNumber))
lob(rasterblock) store as (nocache nologging);
After I load Image successful, I continue load all cell data into BLOB object by:
DECLARE
gr sdo_georaster;
lb blob;
BEGIN
SELECT georaster INTO gr FROM georaster_table WHERE georid=2;
dbms_lob.createTemporary(lb, FALSE);
sdo_geor.getRasterData(gr, 0, lb);
dbms_lob.freeTemporary(lb);
END;
Please give me simple PL/SQL to retrieval content from BLOB object!
Thank You very much!
YuMi

BLOB stands for Binary Large OBject. However the acronym has a pleasing affinity with the actual nature of the thing. In a database a BLOB is an undiffereniated mass of bytes. We don't know whether it's a spreadsheet or a word document or an image. So there is no out-of-the-box API for treating a BLOB as it's native file type.
Having said that there may be something in the Spatial API that works with such things - you might be better off asking the question in Spatial. Although I suspect that venue doesn't get as much through traffic as this one.
Cheers, APC

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Can not retrieve cell data content From BLOB object.

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