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Displaying Size of image in Oracle Forms

hinamansoor
hinamansoor asked
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Last Modified: 2014-01-19
i m using get_file_name built-in on when-button-pressed trigger and save image in database BLOB datatype, every thing is going smoothly but i have a requirement that if load size is more then 25 kb then user unable to save this image with
message ('Image Size is more then 25kb ');

i got some online help can any one exaplain me this code

CREATE TABLE TEMP_PHOTO ( ID NUMBER(3) NOT NULL, PHOTO_NAME VARCHAR2(50), PHOTO BLOB );

CREATE OR REPLACE PROCEDURE load_file ( p_id NUMBER, p_photo_name IN varchar2)
IS  
src_file BFILE;
dst_file BLOB;
lgh_file BINARY_INTEGER;  
BEGIN  
src_file := bfilename('PHOTO_DIR', p_photo_name);
  -- insert a NULL record to lock
 INSERT INTO temp_photo  (id, photo_name, photo) VALUES (p_id , p_photo_name ,EMPTY_BLOB())  RETURNING photo INTO dst_file;  
SELECT photo   INTO dst_file  FROM temp_photo  WHERE id = p_id  AND photo_name = p_photo_name  FOR UPDATE;  
dbms_lob.fileopen(src_file, dbms_lob.file_readonly);  
lgh_file := dbms_lob.getlength(src_file);
dbms_lob.loadfromfile(dst_file, src_file, lgh_file);
UPDATE temp_photo   SET photo = dst_file  WHERE id = p_id  AND photo_name = p_photo_name;

 dbms_lob.fileclose(src_file);  
END load_file;

The procedure created successfully

Now,
execute load_file(1,'Sunset.jpg'); gives me the following error :

ERROR at line 1:
ORA-22288: file or LOB operation FILEOPEN failed
No such file or directory
ORA-06512: at "SYS.DBMS_LOB", line 805
ORA-06512: at line 6


Thanks in advance
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Most Valuable Expert 2012
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Commented:
Look like either you define a database directory named PHOTO_DIR that points to the proper folder pointed to by PHOTO_DIR doesn't contain a file called Sunset.jpg.

The online docs have the information about creating directories and about  dbms_lob.loadfromfile.

Create directory:
http://docs.oracle.com/cd/E11882_01/server.112/e41084/statements_5007.htm#SQLRF01207

dbms_lob.loadfromfile:
http://docs.oracle.com/cd/E11882_01/appdev.112/e40758/d_lob.htm#ARPLS66733

As for the code itself, I think there are several unnecessary steps involved.  There are several examples on the the web if you look around.

Personally I would change the procedure call and go with:
dbms_lob.LOADBLOBFROMFILE

http://docs.oracle.com/cd/E11882_01/appdev.112/e40758/d_lob.htm#ARPLS66723

Google around for LOADBLOBFROMFILE and you'll  locate many examples.
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Author

Commented:
i have solved this issue by using

Win_API_File.File_Size

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