Trong ví dụ, mssqllink là tên của liên kết cơ sở dữ liệu sử dụng DG4ODBC và trình điều khiển ODBC SQL Server của Easysoft để kết nối với SQL Server.
CREATE DIRECTORY IMAGE AS '/tmp';
DECLARE
curid NUMBER;
execid NUMBER;
src_file BFILE:=NULL;
dst_file BLOB;
lgh_file BINARY_INTEGER;
file_status boolean:=false;
amt BINARY_INTEGER := 2000; -- The maximum image size for this example is 2K.
buf RAW(2000);
bound_raw long raw;
pos INTEGER := 1;
BEGIN
src_file := BFILENAME('IMAGE', 'test.jpg');
file_status := dbms_lob.fileexists( src_file )=1;
if file_status then
-- open the file
dbms_lob.createtemporary(dst_file, true, dbms_lob.call);
dbms_lob.fileopen (src_file);
-- determine length
lgh_file := dbms_lob.getlength (src_file);
dbms_output.put_line('Size : ' || lgh_file);
if lgh_file<2001 then
-- Read the file
-- dbms_lob.loadfromfile(dst_file, src_file, lgh_file);
Begin
LOOP
dbms_output.put_line('Pos : ' || pos);
dbms_lob.read(src_file, amt, pos, buf);
bound_raw :=bound_raw || buf;
-- Process contents of buffer
pos := pos + amt;
END LOOP;
EXCEPTION
WHEN NO_DATA_FOUND
THEN
BEGIN
dbms_output.put_line('End of data reached');
dbms_lob.fileclose(src_file);
END;
-- Insert the blob field
end;
dbms_output.put_line('Buffer : ' || buf);
curid := DBMS_HS_PASSTHROUGH.OPEN_CURSOR@mssqllink; -- Replace this with the name of your linked table
DBMS_HS_PASSTHROUGH.PARSE@mssqllink(curid,'insert into blb values (1,?)'); -- Destination table in SQL Server
DBMS_HS_PASSTHROUGH.BIND_VARIABLE_RAW@mssqllink(curid, 1, buf );
execid := DBMS_HS_PASSTHROUGH.EXECUTE_NON_QUERY@mssqllink(curid);
DBMS_HS_PASSTHROUGH.CLOSE_CURSOR@mssqllink(curid);
commit;
dbms_output.put_line('Data sent to Easysoft SQL Server ODBC driver');
else
dbms_output.put_line('File size is too big for Oracle');
end if;
else
dbms_output.put_line('Can not open file.');
end if;
END;
/