Oracle blob to file with spool code example
Example: oracle spool blob to file
CREATE OR REPLACE PROCEDURE retrieve_lob_to_file(temp_blob in BLOB, file_path in varchar2, file_name in varchar2) IS
data_buffer RAW (32767);
position INTEGER := 1;
filehandle utl_file.file_type;
error_number NUMBER;
error_message VARCHAR2(100);
blob_length INTEGER;
chunk_size BINARY_INTEGER := 32767;
BEGIN
blob_length := dbms_lob.getlength(temp_blob);
filehandle := utl_file.fopen(file_path, file_name,'wb', 1024);
WHILE position < blob_length LOOP
dbms_lob.read (temp_blob, chunk_size, position, data_buffer);
utl_file.put_raw (filehandle, data_buffer);
position := position + chunk_size;
data_buffer := null;
END LOOP;
utl_file.fclose(filehandle);
EXCEPTION
WHEN OTHERS THEN
BEGIN
error_number := sqlcode;
error_message := substr(sqlerrm ,1 ,100);
dbms_output.put_line('Error #: ' || error_number);
dbms_output.put_line('Error Message: ' || error_message);
utl_file.fclose_all;
END;
END;
/