Help on BFILE and lob locators.

Question

I need to load images on my directory(IMGDIR) going to database table(T_IMG) but an error message Invalid lob locator appears. What seems to be the problem on my code, thanks
CREATE TABLE T_IMG
rec_id VARCHAR2(10 BYTE),
image BLOB,
rev_date TIMESTAMP(6),
image_name VARCHAR2(50 BYTE),
mime VARCHAR2(50 BYTE)
DECLARE
v_bfile BFILE;
v_image BLOB;
v_dot_pos NUMBER;
v_mime VARCHAR2(50);
v_filename VARCHAR2(100);
v_rec_id VARCHAR2(12);
BEGIN
v_bfile := BFILENAME('IMGDIR', v_filename);
dbms_lob.fileopen(v_bfile,dbms_lob.file_readonly);
LOOP
BEGIN
SELECT 'PIC' || TO_CHAR (images_seq.NEXTVAL, 'FM0XXXXXXX') INTO v_rec_id FROM DUAL;
v_dot_pos := INSTR(v_filename,'.');
v_mime := 'image/'||SUBSTR( v_filename,v_dot_pos+1,LENGTH(v_filename) );
INSERT INTO T_IMG (rec_id, image, rev_date, image_name, mime)
VALUES (v_rec_id, EMPTY_BLOB(), SYSTIMESTAMP, v_filename, v_mime)
RETURNING image INTO v_image;
dbms_lob.loadfromfile(v_image,v_bfile,dbms_lob.getlength(v_bfile) );
COMMIT;
EXCEPTION
WHEN no_data_found THEN
exit;
END;
END LOOP;
dbms_lob.fileclose(v_bfile);
END;
ORA-06502: PL/SQL: numeric or value error: invalid LOB locator specified: ORA-22275
ORA-06512: at "SYS.DBMS_LOB", line 635
ORA-06512: at line 12

Answer 1

Hi,
I have no problem with this (I removed the loop):
DECLARE
   v_bfile    BFILE;
   v_image    BLOB;
   v_dot_pos  NUMBER;
   v_mime     VARCHAR2(50);
   v_filename VARCHAR2(100) := 'test.jpg';
   v_rec_id   VARCHAR2(20);
BEGIN
   v_bfile := BFILENAME('EXT_FILES' /*'IMGDIR'*/,
                        v_filename);
   dbms_lob.fileopen(v_bfile,
                     dbms_lob.file_readonly);
   BEGIN
      SELECT 'PIC' || TO_CHAR(images_seq.NEXTVAL,
                              'FM0XXXXXXX')
        INTO v_rec_id
        FROM DUAL;
      v_dot_pos := INSTR(v_filename,
      v_mime    := 'image/' || SUBSTR(v_filename,
                                      v_dot_pos + 1,
                                      LENGTH(v_filename));
      INSERT INTO T_IMG
         (rec_id,
          image,
          rev_date,
          image_name,
          mime)
      VALUES
         (v_rec_id,
          EMPTY_BLOB(),
          SYSTIMESTAMP,
          v_filename,
          v_mime)
      RETURNING image INTO v_image;
      dbms_lob.loadfromfile(v_image,
                            v_bfile,
                            dbms_lob.getlength(v_bfile));
      COMMIT;
   EXCEPTION
      WHEN no_data_found THEN
         NULL; -- You must replace this for proper handling
   END;
   dbms_lob.fileclose(v_bfile);
END;
/Regards,