Insert from Long Raw to Blob

Hi all,
I'm presently working on oracle 8.1.7,im having a table with Long Raw as a field.
I want to insert the image into another table which containing a Blob as field.I wanted it to take place either by Database trigger or Procedure or any other way..
Please can anybody provide me the script. I've already tried the procedure..select long raw to blob..I'm getting Numeric or Value error...i think the size of the image in the long raw table might be > 32767...
Urgent please...
thanks in advance
rgds,
John

Hi John,
Post this question in Database forum for quick help.
The forum is present at this location.
General Database Discussions
Regards,
Anupama

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Limitation of converting from Long Raw to Blob

Hi All,
DB:11g
Oracle Apps:R12
Is there a limitation of converting from Long Raw to Blob?
Please share your experience on this subject in case anyone has faced it before.
Thanks for your time!
Regards,

http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:13213885403654
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:510622111991

URGENT - Extract Image Files From Long Raw Column

Hi.
I have to extract image files (tif and wmf format) from "long raw" column and put them in a directory, using a PL/SQL procedure.
Can anyone help me.
Thanks

Well that is interesting, that ORA returns no records on Metalink. Anyway, that was for my own curiosity.
As you are on 10g, this is how I would write a long raw to a file if I had no choice:
1) create a gtt with a column of type blob
2) insert into the gtt the long raw column using the to_lob conversion function
3) you now have a lob!
4) open a binary file for writing using utl_file (binary mode was introduced in 10g)
4) use dbms_lob to read through the blob and write it in chunks to the file
You will have to do this row by row. It will be painfully excrutiatingly slow.
This is basically your only choice unless you have a OCI programmer to hand. In which case I would be getting them to write the C code to read the long raw column and write it to a file. This could then be compiled into a library and called as an external procedure from PL/SQL.
HTH
Chris

Migrating LONG RAW to BLOB and optimizing extent size

Hi all,
I got a quite fragmented table with a LONG RAW column I want to migrate to BLOB and defragment.
DB version is Oracle9i Release 9.2.0.4.0 and this is a production environment.
I know MOVE and/or CTAS are not possible with LONG RAW columns
So, how can I do that? Is ALTER TABLE MODIFY the only possibility to migrate from LOING RAW to BLOB?
Since ALTER TABLE MODIFY will lock the whole table preventing any DML operation, I need at least a rough estimate of the time needed for this operation. How can I do that?
Since this table is quite fragmented, I also want to rebuilt it using a different extent size.
I think I should issue a ALTER TABLE MOVE... after having performed the "ALTER TABLE MODIFY".
Can I do something better to minimize unavailability to DML operations?
thanks,
andrea

Hi,
Is this an OCCI question?
I don't see that "to_blob" is documented anywhere. The "to_lob" function can be used to convert long raw columns, but its use is pretty specific and certainly not for general query use.
Regards,
Mark
EDIT1: Well, my local documentation set does not have "to_blob" in it at all. However, it is in the 11.1 SQL Language Reference on OTN:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/functions186.htm#sthref2358
Despite the fact that the documentation mentions "long raw" the function appears to only work with "raw" data in my 11.1 tests.
What's your goal here?
Edited by: Mark Williams on Jun 8, 2009 7:15 PM

Xmlgen.getxml Nested Cursors with LONG RAW and BLOB Data Types

I am trying to use a nested cursor with xmlgen.getxml that has a long raw or blob column. In either case, it will not return to me any data in the xml document pertaining to that LONG RAW or BLOB column. If I do not use a nested cursor, it works fine.
Example:
SELECT xmlgen.getxml('SELECT x, CURSOR(SELECT y FROM y_tab WHERE y_tab.x_id = x_tab.x_id) y FROM x_tab') FROM dual;
This will not produce the information I am after.
However, simply running:
SELECT xmlgen.getxml('SELECT y FROM y_tab WHERE y_tab.x_id = <somevalue>') FROM dual;
Works???
Any ideas out there? Does anyone know if DBMS_XMLQUERY has this limitation?
Thanks,
Brad

It doesn't appear that I am able to attach the PDF files. Can you supply your email (or I can supply mine) so I can send you the three files:
1.) A good PDF (manually extracted from our old application)
2.) Dump of the same PDF file (includes header/footer info)
3.) A partially fixed PDF file (but some of the pictures / pages are cut off - specifically pages 3,5,9,10,12,14)
The way that we have tried to fix the file (in example 3 above) is the following:
a.) Find the First Occurrence of "%PDF-"
b.) Find the Last Occurrence of "%%EOF"
c.) if the first "%PDF-" is found AND the last "%%EOF" is found, then
i.) Remove all data before the first %PDF-
ii.) Remove all data after the last %%EOF
Let me know if you need any other information.
Thanks,
Mike

Inserting into long raw column type

Hello,
We tried to insert into a bmp file into the a column of type long raw and got the following error: "invalid value stored in pcbValue". There was no ORA message code assign to this error.
Willy

Thanks !
JDeveloper Team (guest) wrote:
: Hi,
: You need to use streams to do this. In the JDBC User's Guide
and
: Reference, there is a whole chapter on using streams. Here is
: some example code from the 8.1.5 JDBC User's Guide:
: The following Java code snippet writes the data from the
LESLIE
: LONG RAW column into a file called
: leslie.gif:
: ResultSet rset = stmt.executeQuery ("select GIFDATA from
: streamexample where
: NAME='LESLIE'");
: // get first row
: if (rset.next())
: // Get the GIF data as a stream from Oracle to the client
: InputStream gif_data = rset.getBinaryStream (1);
: try
: FileOutputStream file = null;
: file = new FileOutputStream ("leslie.gif");
: int chunk;
: while ((chunk = gif_data.read()) != -1)
: file.write(chunk);
: } catch (Exception e) {
: String err = e.toString();
: System.out.println(err);
: } finally {
: if file != null()
: file.close();
: In this example the contents of the GIFDATA column are
: transferred incrementally in chunk-sized pieces between
: the database and the client. The InputStream object returned
by
: the call to getBinaryStream() reads the data
: directly from the database connection.
: Zvonimir Vukovi (guest) wrote:
: : Zvonimir Vukovic (guest) wrote:
: : : Hi !
: : : I have a problem when inserting an image (eg. GIF file)
: into
: : : Long Raw column. I am using JDeveloper 1.1, and I need to
: read
: : : images from my local hard drive and insert them into
Oracle
: : : DBMS. I've done a reverse thing (copying image from Long
Raw
: : : column to my HDD). I would be very thankful for a piece of
: : JDBC
: : : code which would solve my problem.
: : : Thanks,
: : : Zvonimir Vukovi
: : I've forgotten to say that I need to use na Applet to do
the
: : job. I can read the image into AWT Image control, but I
don't
: : know how to get it into the Long Raw column
: : Thanks again.
: : Z.V.
null

Modify long raw to blob column

Hello,
I would like to know if it is possible to modify a long raw column into a blob column, without having to drop and recreate my table.
There is already data inserted in the long raw column.
Thanks in advance,
Cindy

'Fraid not.
A LOB is stored "out-of-line", which means the actual "raw" data is held separately from the table. A long raw stores the data in-line. This means that you'll have to write some code to extract the "raw" data and write it to the LOB. Methinks you won't be able to add a LOB-type column to the table if you have a long raw existing in it already.

PL/SQL Help...Long Raw to BLOB

Hello All,
I have a PL/SQL Package and Function that does a search for text in a blob field. Below is the Package and the Function.
Here the statement that executes the function
Select *
           FROM PROGTXT
          WHERE pcode.str_loc_in_blob
                                    (pcode.blob_to_new_blob (progtxt),
                                     '<search string>'
                                    ) <> 0
       ORDER BY objectvalue1, objectvaluesCurrently the above mentioned sql works where the progtxt is a blob datatype.
We have a database where the progtxt is of Long Raw datatype. I want to utilize the same sql exactly but change the function where i can copy the table structure to a global temporary table each time the function is executed using the dbms_lob funtion and delete the temp table once the function is executed after the results are posted/retrieved. The reason why i want to use the same application is because it is part of a .net program and the only thing i change is the function. I am not great with PL/SQL. If anyone can help that will be a great help!!!!!
Below is the code for the package and the function
CREATE OR REPLACE PACKAGE PCODE AS
FUNCTION to_base (p_dec IN NUMBER, p_base IN NUMBER)
   RETURN VARCHAR2
FUNCTION to_dec (
   p_str         IN   VARCHAR2,
   p_from_base   IN   NUMBER DEFAULT 16
   RETURN NUMBER
FUNCTION to_hex (p_dec IN NUMBER)
   RETURN VARCHAR2
FUNCTION to_bin (p_dec IN NUMBER)
   RETURN VARCHAR2
FUNCTION to_oct (p_dec IN NUMBER)
   RETURN VARCHAR2
FUNCTION str_to_hex(p_str IN VARCHAR2)
RETURN VARCHAR2
FUNCTION str_loc_in_blob(
l_blob IN BLOB
, l_str IN VARCHAR2)
RETURN NUMBER
FUNCTION blob_to_new_blob(
p_blob IN BLOB)
RETURN BLOB
END PCODE;
CREATE OR REPLACE PACKAGE BODY PCODE AS
FUNCTION to_base (p_dec IN NUMBER, p_base IN NUMBER)
   RETURN VARCHAR2
IS
   l_str   VARCHAR2 (255) DEFAULT NULL;
   l_num   NUMBER         DEFAULT p_dec;
   l_hex   VARCHAR2 (16) DEFAULT '0123456789abcdef';
BEGIN
   IF (p_dec IS NULL OR p_base IS NULL)
   THEN
      RETURN NULL;
   END IF;
   IF (TRUNC (p_dec) <> p_dec OR p_dec < 0)
   THEN
      RAISE PROGRAM_ERROR;
   END IF;
   LOOP
      l_str := SUBSTR (l_hex, MOD (l_num, p_base) + 1, 1) || l_str;
      l_num := TRUNC (l_num / p_base);
      EXIT WHEN (l_num = 0);
   END LOOP;
   RETURN l_str;
END to_base;
FUNCTION to_dec (
   p_str         IN   VARCHAR2,
   p_from_base   IN   NUMBER DEFAULT 16
   RETURN NUMBER
IS
   l_num   NUMBER        DEFAULT 0;
   l_hex   VARCHAR2 (16) DEFAULT '0123456789abcdef';
BEGIN
   IF (p_str IS NULL OR p_from_base IS NULL)
   THEN
      RETURN NULL;
   END IF;
   FOR i IN 1 .. LENGTH (p_str)
   LOOP
      l_num :=
         l_num * p_from_base + INSTR (l_hex, UPPER (SUBSTR (p_str, i, 1)))
         - 1;
   END LOOP;
   RETURN l_num;
END to_dec;
FUNCTION to_hex (p_dec IN NUMBER)
   RETURN VARCHAR2
IS
BEGIN
   RETURN to_base (p_dec, 16);
END to_hex;
FUNCTION to_bin (p_dec IN NUMBER)
   RETURN VARCHAR2
IS
BEGIN
   RETURN to_base (p_dec, 2);
END to_bin;
FUNCTION to_oct (p_dec IN NUMBER)
   RETURN VARCHAR2
IS
BEGIN
   RETURN to_base (p_dec, 8);
END to_oct;
FUNCTION str_to_hex(p_str IN VARCHAR2)
RETURN VARCHAR2 IS
l_val VARCHAR2(2000) := NULL;
BEGIN
   FOR i IN 1 .. LENGTH (p_str)
   LOOP
      l_val := l_val || to_hex(ASCII(SUBSTR (p_str, i, 1))) || case when i = LENGTH (p_str) then null else '00' end;
   END LOOP;
   RETURN UPPER(l_val);
END str_to_hex;
FUNCTION str_loc_in_blob(
l_blob IN BLOB
, l_str IN VARCHAR2)
RETURN NUMBER IS
blob_len NUMBER;
l_pos number := 0;
BEGIN
blob_len := dbms_lob.getlength(l_blob);
l_pos := 0;
FOR i in 0..15 LOOP
    l_pos := dbms_lob.instr(DBMS_LOB.SUBSTR (l_blob, 2000, i*2000+1), IMPACTUS_PCODE.str_to_hex((l_str)));
    IF l_pos <> 0 THEN
       RETURN i*2000+1 + l_pos - 1;
    END IF;
END LOOP;
FOR i in 0..15 LOOP
    l_pos := dbms_lob.instr(DBMS_LOB.SUBSTR (l_blob, 2000, i*2000+1), IMPACTUS_PCODE.str_to_hex(upper(l_str)));
    IF l_pos <> 0 THEN
       RETURN i*2000+1 + l_pos - 1;
    END IF;
END LOOP;
l_pos := 0;
FOR i in 0..15 LOOP
    l_pos := dbms_lob.instr(DBMS_LOB.SUBSTR (l_blob, 2000, i*2000+1), IMPACTUS_PCODE.str_to_hex(lower(l_str)));
    IF l_pos <> 0 THEN
       RETURN i*2000+1 + l_pos - 1;
    END IF;
END LOOP;
l_pos := 0;
FOR i in 0..15 LOOP
    l_pos := dbms_lob.instr(DBMS_LOB.SUBSTR (l_blob, 2000, i*2000+1), IMPACTUS_PCODE.str_to_hex(initcap(l_str)));
    IF l_pos <> 0 THEN
       RETURN i*2000+1 + l_pos - 1;
    END IF;
END LOOP;
RETURN 0;
END str_loc_in_blob;
FUNCTION blob_to_new_blob(p_blob BLOB)
   RETURN BLOB IS
v_file_blob     BLOB;
v_file_blob_new BLOB := NULL;
v_file_clob     CLOB;
v_file_size     INTEGER := dbms_lob.lobmaxsize;
v_dest_offset   INTEGER := 1;
v_src_offset    INTEGER := 1;
v_blob_csid     NUMBER := dbms_lob.default_csid;
v_lang_context NUMBER := dbms_lob.default_lang_ctx;
v_warning       INTEGER;
BEGIN
DBMS_LOB.CREATETEMPORARY(v_file_clob, TRUE);
        dbms_lob.convertToClob(
                        v_file_clob,
                        p_blob,
                        v_file_size,
                        v_dest_offset,
                        v_src_offset,
                        v_blob_csid,
                        v_lang_context,
                        v_warning);
        v_file_clob:=upper(v_file_clob);
        IF v_warning = 0 THEN
                v_file_size     := dbms_lob.lobmaxsize;
                v_dest_offset   := 1;
                v_src_offset    := 1;
                v_blob_csid     := dbms_lob.default_csid;
                v_lang_context := dbms_lob.default_lang_ctx;
                v_warning       := null;
                DBMS_LOB.CREATETEMPORARY(v_file_blob_new,true);
                dbms_lob.convertToBlob(
                        v_file_blob_new,
                        v_file_clob,
                        v_file_size,
                        v_dest_offset,
                        v_src_offset,
                        v_blob_csid,
                        v_lang_context,
                        v_warning);
                IF v_warning = 0 THEN
                   RETURN v_file_blob_new;
                END IF;
        END IF;
END;
END PCODE;
/Thanks
Nitin
Edited by: user13048604 on Jan 12, 2011 10:18 PM

First you may need to convert 'BLOB' which is of 'RAW' type to 'VARCHAR2'
using
utl_raw.cast_to_varchar2(urblob)Then you can make use of dbms_lob.instr,dbms_lob.substr etc...

Long raw to blob

Hi
I am working on Pl/Sql scrpit to transfer data/images from one Oracle 8i DB to another.
The images to be transfered are in Long Raw but need to populate a column in BLOB.
Any ideas how to convert?

http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:13213885403654

Updating and inserting on Long Raw column

Hi All,
My source table contains LONG RAW column in XX databse. I have to fetch the data from this table in YY Databse using DB link and insert into same structured table. The problem is, i can not access the LONG RAW data for some rows which the size exceeding above 32k.
My requirement is, i have to fetch and insert or update the record(Source and target table structure is same and dtabase is different).
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Please let me know if you need more information.
Thanks
Ram
Edited by: ram on Oct 19, 2008 2:11 PM
Edited by: ram on Oct 19, 2008 2:12 PM

We using the procedure to insert and update. Procedure will called to update or insert only one record at a time from XX databse to YY database.
We are not using SQL * PLUS for this operation.
Thanks
Ram

Converstion Long raw to BLOB

Hello All,
I am using Oracle 10g,
I need to alter a table which have a Long row data type column, i want to modify the data type of this column to BLOB.
This table contains data, does this alteration affect the data of the table in any way?
Regards,

Any information ? if the alteration of the LONG RAW data type to BLOB affect the existing data ?
Thanks in advance ,

Jdbc session - LONG RAW or BLOB ?

Hello,
          My over-large session data cannot use the LONG RAW data type, for session data field. I think that is a jdbc driver limitation.
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          thanks in advance,
          John


Kiran,
A long raw column can store up to 2 Go and you can have only one by table.
With 9i, BLOB column can store up to 4Go and you can have as so many you want.
With 10g, BLOB column can store up to 8To
I suggest you to use BLOB columns.
Francois

Long Raw vs Blob

We have a table in our database which contains the following field types:
CREATE TABLE TESTBLOB (
A NUMBER ( 10 ) NOT NULL ,
B VARCHAR2 ( 765 ) DEFAULT '' ,
C NUMBER ( 10 ) DEFAULT 0 ,
D NUMBER ( 10 ) DEFAULT 0 ,
E NUMBER ( 10 ) DEFAULT 0 ,
F NUMBER ( 10 ) DEFAULT 0 ,
G NUMBER ( 5 ) NOT NULL ,
H NUMBER ( 5 ) NOT NULL ,
I NUMBER ( 5 ) NOT NULL ,
J NUMBER ( 5 ) NOT NULL ,
K NUMBER ( 10 ) DEFAULT 0 ,
L LONG RAW DEFAULT NULL ,
CONSTRAINT PK_TESTBLOB PRIMARY KEY ( A )
We recently changed B to VARCHAR2 (2000). After that change, the bitmap images we were saving as A LONG RAW would be loaded back into our application with the right half on the left side and the left side on the right. When we changed L to be a BLOB, the bitmap images are being loaded back into the application correctly and this issue has been corrected.
I guess my questions are, can anyone tell me what making these changes did to the database and why does changing the LONG RAW to a BLOB resolve the issue?
Thanks in advance.

The misdisplay of the data when it was stored as a long raw sounds like an application issue. Either the data was being stored or retrieved wrong (or both).
Changing the code to work with a BLOB corrected the error.
Long raws are an obsolete data type provided for backward compatibility only so using a BLOB is a better choice for future maintainability of your code.
Note the BLOB will be stored out of line, that is, in a separate LOB table and an object id will be stored in the base table row that points to the the LOB row.
You can find more information of the datatype in the Concepts manual chapter on data types or the Application Developers Fundamentals Guide.
HTH -- Mark D Powell --

How to get image out from LONG RAW from the database

Dear fellow Oracle users
I have a table about 50,000 rows one of the the column is LONG RAW.. and we store image files within this column ... almost 99% is gif format.
Does anyone able to recommand a way to get ALL these images out of the database and save it into a directory. May be a batch process or may be some kind of tools?
Not all the rows consists of images (i.e some of the the long raw can be null for some row) .
Any sample codes are very much appreciated...(I am okay with PL/SQL , a little rusty with Java coding but okay to pick it up again...)
regards
Ivan

Hi,
if u are using oracle forms than u can integrate Webutil with it, there are many function available within webutil to do this.
Thanks

Inserting a LONG to a BLOB in the same table

I have a table with a LONG column and would like to concatenate all existing columns into a new column in the same table and define it as a BLOB. I'm trying to figure out a way to do this. I tried the following and got error message
insert into cma_search_test
select obj_id,
     line_id,
     doc_nmbr,
     supplier_part_num,
     mnfctr,
     mnfctr_part_nmbr,
     line_desc,
     ext_desc_txt,
     vend_name,
     cma_effect_dt,
     cma_expir_dt,
     last_updt_usr,
     last_updt_tmsp,
     obj_id||
     line_id||
     doc_nmbr||
     supplier_part_num||
     mnfctr||
     mnfctr_part_nmbr||
     line_desc||
     to_lob(ext_desc_txt)||
     vend_name||
     cma_effect_dt||
     cma_expir_dt||
     last_updt_usr||
     last_updt_tmsp "All_Columns"
from cma_search
to_lob(ext_desc_txt)||
ERROR at line 22:
ORA-00932: inconsistent datatypes
Any help would be appreciated.
Thanks,
Tracy

You cannot concatenate a LONG field. You will have to use a procedure to accomplish what you want.
Use the DBMS_LOB package.

Insert from Long Raw to Blob

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