Updating a LONG RAW column
I have a table with a column of type LONG RAW that can take binary content of arbitrary length (up to 2 GB). I try to copy content from one row to another using the following SQL:
UPDATE TEAM_ADM.Content SET (Content, ContentType) =
(SELECT Content, ContentType FROM Content WHERE ContentId = in_SourceContentID)
WHERE ContentID = in_TargetContentID;
Content.Content is the column in question.
Oracle returns with error ORA-00997:
ORA-00997 illegal use of LONG datatype
Cause: A value of datatype LONG was used in a function or in a DISTINCT, WHERE, CONNECT BY, GROUP BY, or ORDER BY clause. A LONG value can only be used in a SELECT clause.
Action: Remove the LONG value from the function or clause.
Question: How can I copy a LONG RAW column from one row to another?
Regards,
Kjell Tangen
Hello,
It seems that the Long datatypes in Oracle have a lot of restrictions. According to
this blog:LONG and LONG RAW columns cannot be used in distributed SQL statements.
In that case, you should update the long raw column on the Oracle side. You can try to use openquery as Rick post above to send the SQL statment to Oracle and execute.
Regards,
Fanny Liu
Fanny Liu
TechNet Community Support
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Updating a LONG RAW field in Oracle DB from SQL Server
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CBHello,
It seems that the Long datatypes in Oracle have a lot of restrictions. According to
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In that case, you should update the long raw column on the Oracle side. You can try to use openquery as Rick post above to send the SQL statment to Oracle and execute.
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Fanny Liu
Fanny Liu
TechNet Community Support -
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).
Please suggest the best way of handle this problem.
Please let me know if you need more information.
Thanks
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Edited by: ram on Oct 19, 2008 2:11 PM
Edited by: ram on Oct 19, 2008 2:12 PMWe 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.
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ORA-22835: buffer too small when trying to save pdf file in LONG RAW column
Hi,
I get "ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion (real : 125695, maximum : 2000)" when i trying to save a 120k pdf file in an Oracle Long Raw column using dotnet 4.0 and Entity FrameWork.
Dim db As New OracleEntities
Try
Dim myEntity = (From e In db.TEXTE _
Where e.TEXT_ID = txtTextId.Text _
Select e).Single
With myEntity
If txtTextypeId.Text <> "" Then
.TEXTYPE_ID = txtTextypeId.Text
Else
.TEXTYPE_ID = Nothing
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.TEXT_NUM = txtTextNum.Text
.TEXT_NAME = txtTextName.Text
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If DocAdded Then
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Document is an array of Byte and TEXT_DOC also (mapped to a long row column).
is it possible to increase the size of the buffer ? how may i do it ?
Thx in advance.
Regards.Using a custom UPDATE or INSERT stored procedure for LONG RAW column with
exceed-limit data may still get the following error.
"ORA-01460: unimplemented or unreasonable conversion requested".
One option is to use BLOB instead of LONG RAW in your table and regenerate your
data model from the table. Then using the default UPDATE or INSERT statement
(created by EF) should work.
The following will modify your LONG RAW column to BLOB column.
Disclaimers:
1. It's irreversible--you cannot modify BLOB back to LONG RAW.
2. I have not tried that when there are huge data in LONG RAW column.
So be careful.
alter table <your_table_name> modify <your_long_raw_type_column> blob; -
Load image file into a LONG RAW column via SQL*Loader
Does anyone know how to load a image file into a LONG RAW column via SQL*Loader?
Thanks
-Hsing-Hua-Are you trying to import the image on the client into Oracle lite, or from the server end into the main oracle database for download to the client?
On our system images are loaded into the the oracle lite database (10g R1 at the moment) on the client (DELL X50 PDA's) into a BLOB (Not LONG RAW) column using Java (relatively standard functionality in Java) as this is what our application software is written in.
From the server end, we do not at the moment load images as such, but we do load the application software into the database for deployment of new versions to the clients (the DMC/DMS updates we have found very unreliable), and the technique should be the same for images. Again the file is imported into a BLOB column.
NOTE a column defined as BLOB on the main Oracle database appears as a LONG VARBINARY on the client Oracle lite database, but the synchronisation process handles the conversion with no problem.
To import into a BLOB column on the server try the following
1) you will need to create a DIRECTORY (CREATE DIRECTORY command) within the database, pointing at a directory on the database server (or accessible from it). This is needed for the file location.
CREATE OR REPLACE DIRECTORY PDA_FILE_UPLOAD AS '/pdaapps/jar/'
NOTE create directory needs to be run as SYSTEM
2) define your table to hold the image and other data. Our tables is
SQL> desc pda_applications
Name Null? Type
ID NOT NULL NUMBER(12)
PDAAT_CODE NOT NULL VARCHAR2(10)
VERSION NOT NULL NUMBER(5,2)
PART_NO NOT NULL NUMBER(3)
FILE_OBJECT BLOB
DEPLOY_APPLICATION_YN NOT NULL VARCHAR2(1)
3) copy the image (or in our case a .jar file) to the database server directory specified in step 1
4) the actual import is done using a DBMB_LOB procedure
PROCEDURE pr_load_file
Module Name : pr_load_file
Description : Main call. Create a new pda_applications record, and import the specified file into it
Version History:
Vers. Author Date Reason
1.0 G Wilkinson 03/02/2006 Initial Version.
(PA_VERSION IN NUMBER
,PA_FILENAME IN VARCHAR2
,PA_PDAAT_CODE IN VARCHAR2
,PA_PART_NO IN NUMBER DEFAULT 1
,PA_DEPLOY IN VARCHAR2 DEFAULT 'Y')
IS
l_FileLocator BFILE;
l_blobLocator BLOB;
l_seq NUMBER;
l_location VARCHAR2(20);
no_params EXCEPTION;
call_fail EXCEPTION;
BEGIN
-- Throw error if required details not present
IF pa_version IS NULL
OR pa_filename IS NULL
OR pa_pdaat_code IS NULL THEN
RAISE no_params;
END IF;
-- Initialize the BLOB locator for writing. Note that we have
-- to import a blob into a table as part of a SELECT FOR UPDATE. This locks the row,
-- and is a requirement for LOADFROMFILE.
SELECT pdaa_id_seq.nextval
INTO l_seq
FROM dual;
-- First create the application record (file is imported by update, not insert
INSERT INTO pda_applications
(ID,PDAAT_CODE,VERSION,PART_NO,FILE_OBJECT,DEPLOY_APPLICATION_YN)
VALUES (l_seq,pa_pdaat_code,pa_version,pa_part_no,EMPTY_BLOB(),pa_deploy);
-- Lock record for update to import the file
SELECT file_object INTO l_blobLocator
FROM pda_applications
WHERE id=l_seq
FOR UPDATE;
-- Initialize the BFILE locator for reading.
l_FileLocator := BFILENAME('PDA_FILE_UPLOAD', pa_filename);
DBMS_LOB.FILEOPEN(l_FileLocator, DBMS_LOB.FILE_READONLY);
-- Load the entire file into the character LOB.
-- This is necessary so that we have the data in
-- character rather than RAW variables.
DBMS_LOB.LOADFROMFILE(l_blobLocator, l_FileLocator
,DBMS_LOB.GETLENGTH(l_FileLocator)
,src_offset => 1);
-- Clean up.
DBMS_LOB.FILECLOSE(l_FileLocator);
-- Create download records for each user associated with the application for sending to the PDA's
-- to install the software
IF pa_deploy = 'Y' then
IF fn_deploy (pa_pdaa_id => l_seq
,pa_pdaat_code => pa_pdaat_code) != 'SUCCESS' THEN
RAISE call_fail;
END IF;
END IF;
EXCEPTION
WHEN no_params THEN
pkg_appm.pr_log_message( pa_mdl_name => g_module_name
, pa_mdl_version => fn_get_body_version
, pa_error_code => SQLCODE
, pa_location => l_location
, pa_text => 'Missing parameters'
, pa_severity => 'E'
WHEN OTHERS THEN
DBMS_LOB.FILECLOSE(l_FileLocator);
pkg_appm.pr_log_message( pa_mdl_name => g_module_name
, pa_mdl_version => fn_get_body_version
, pa_error_code => SQLCODE
, pa_location => l_location
, pa_text => SQLERRM
, pa_severity => 'E'
END pr_load_file;
I hope this may be of some help -
We have a LONG RAW column.
JDev mapped it to Raw and LONGVARBINARY as SQL type.
Reading data (even huge amounts) works alright, but when we try to insert or update we get:
Data size bigger than max size for this type
I did some reading on the internet and found that I had to stream data into JDBC which Raw apparently cannot handle.
So how can I solve this?
And please, don't just write "Create a domain". I tried. It's not that easy for me. It should be a bit more specific.
Thanks in advance!
SaschaYou not only have to create a Domain but also implement either BlobDomainInterface or one of it's subclassed interfaces.
See oracle.jbo.domain.BlobDomainInterface (source in bc4jdomorcl-src.zip) for an example of how various interface methods are implemented.
When a domain implements BlobDomainInterface, it's called during load/save Entity data to setup it's transaction context (if it needs to during load) and to save it's content into the db using the given transaction context.
These interfaces are written with the assumption that there's an oracle.sql.* class that knows how to use transaction to fetch data using SQL-locator objects. In this case I believe you will need to extend the domain from oracle.sql.RAW class. -
Hi Everybody,
I am using Oracle 9i ver 9.1 & Developer 6. My requirement is to store documents in the database. For that I have created a Long RAW column in the table where I have to store that. On forms I have made an OLE Container whose OLE Class property is set to "Word.Document.8". When I run the form, everyting goes fine. I insert the record, with word documents, it saves. I cleared the form & when I query it gets back the document, ie I can open it by double clicking it. But, once I exit the screen, run it again & try to query, it fetches all other columns except the OLE container value. I mean when I query it after exiting once & running the screen again, it does not fetch that OLE container base table items value, which it displays if I query it, without exiting, ie, the time when I inserted the document in OLE container, saved it & cleared the screen.
Anyone having a work around pls, reply.
Thanks in Advance.
[email protected]Hi,
Yes the data is getting saved. As, when i clear the screen & then query again it displays the data. At SQL promp, when i qureied the table, it displays on a single "D" as the column values for all the rows, whether I had inserted any value for that row or not. I mean it was displaying "D" in all the rows, though, I have not inserted value in all rows in the Long Raw Column.
Rgds,
[email protected] -
Restrict the LONG RAW Column with less than 32760 bytes in the SELECT
When i am trying to access a LONG RAW Dataype wchich has characters greter than 32760 bytes i am getting this error.
Error -6502: ORA-06502: PL/SQL: numeric or value error
I came to know that PL/SQL will only be able to access the first 32760 bytes of a LONG RAW. If we try to fetch a LONG RAW from the database into PL/SQL variable which exceeds the 32760 byte limit then we encountered the above error.
Can anyone tell to avoid this error can we write a query to restrict the output to get only those records which has LONG RAW length less than 32760 bytes.
Since we canot use utl_raw.length() in the Select Statement, is there any function to restrict the the records for less than 32760 Bytes only for LONG RAW datatype, so that i will not get any records for more than 32760 bytes and we will not get this error.
REquest you to please help.Hi
we do not have an option of migrating the LONG RAW to BLOB or any kind of ALTER to the table.
We want to restrict the use of Records from the Table which has data for LONG RAW column less than 32760 bytes, so that we will not get the PL/SQL numberic Error
any function for LONG RAW that can be used in SQL like for varchar2 we can use
select length(NAME) < 100 from tb_emp+
i.e it will get records only which has NAME less than 100 characters. -
6i to 9i conversion OLE container stored in a LONG RAW column to BLOB
I need to automate the migration of data stored in a long raw column to a blob column. The objects were stored in the long raw column using an Oracle Forms 6i OLE container. There is also multiple object types stored in the column, ie (word, excel, images, but mostly pdf's). I have looked at the webutil package but cannot figure out how to read the long raw column since ole containers are obsolete in 9i. I have a lot of records that need migrating and need help.
Thanks,
J. Broome
[email protected]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:
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2.) Dump of the same PDF file (includes header/footer info)
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a.) Find the First Occurrence of "%PDF-"
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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 -
Memory Leak with Oracle ODBC Driver for Long Raw columns
Oracle version : 8.1.7
Platform : Win2K
Oracle ODBC Driver version : 8.0.1.7.5.0.0
Hi,
I've got an Oracle database upgraded from
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leaks (approx 80K) when using ODBC interface calls (thro C++ code) that referenced a combination of normal & long raw columns in a select statement. However, this leak was not observed when only normal columns were present in the
select statement. Is there any known restriction for using
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Thanks!
Regards
SanchayanDid you ever get an answer on this issue?
Thanks in advance -
Column length of a LONG RAW column
How to find out the column length of a LONG RAW column, to compute the average row size in Oracle 7.3.4
Thanks.The Member Feedback forum is for suggestions and feedback for OTN Developer Services. This forum is not monitored by Oracle support or product teams and so Oracle product and technology related questions will not be answered. We recommend that you post this thread to the Database - General forum. General Database Discussions
OTN -
How to differentiate picture formats in LONG RAW column?
Hi,
I have a table with a long raw column that contains pictures. I would like to know for each row if the picture in the long raw column is in JPEG, TIFF, BMP, etc.
Does somebody have an idea on how to do this?
Thanks!
Matt1) You really shouldn't be using LONG or LONG RAW data types any longer. You should at least be using BLOB data types here.
2) When you designed the schema, there should have been columns (or other tables) to store metadata about the file, including the type of image a row stores.
3) Lacking any of this, you could write a program that fetches the data and determines whether it is a valid JPEG, then checks to see if it is a valid TIFF, etc. until it happens upon a file format that appears to work. Obviously, though, that is a relatively costly exercise. If that's what you're forced to do, I'd strongly encourage you to store that information in a (potentially new) column in the database so you only have to do it once.
Justin -
How to load image in Long Raw column?
Dear all,
I need to upload a jpg image to a Long Raw column in one of our tables. Is there a way or utility so that I can do this thru a PL/SQL code? Please help.
Regards,
AmitYou must not be using LONG data type. It has been deprecated. You must be using BLOB. Here is an extract from AskTom.com on how to load a file into BLOB field.
create table demo
( id int primary key,
theBlob blob
create or replace directory my_files as '/export/home/tkyte/public_html';
declare
l_blob blob;
l_bfile bfile;
begin
insert into demo values ( 1, empty_blob() )
returning theBlob into l_blob;
l_bfile := bfilename( 'MY_FILES', 'aria.gif' );
dbms_lob.fileopen( l_bfile );
dbms_lob.loadfromfile( l_blob, l_bfile,
dbms_lob.getlength( l_bfile ) );
dbms_lob.fileclose( l_bfile );
end;
/Below is the link for the same.
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:232814159006 -
Getting the contents of a LONG RAW column
Hi, I'm using Oracle 8.1.7 with JDK 1.4.0, and I've got a dilemma. I have a table that has several columns, one column is a LONG RAW, the rest are just NUMBER or VARCHAR2. I need to transer the contents of particular rows to another table with the same structure. I've got a query the gets the correct rows, and I create and use a ResultSet to getInt(), getString(), and set the parameters of a PreparedStatement. Here's my problem, when I try to do a getBytes() on the LONG RAW column, it says "Stream already closed."
I was able to get around this in the past by just doing another query where the only column I selected was the LONG RAW column. Then it would let me do the getBytes(). Unfortunately, besides being inefficient, it is not possible to have 2 queries any longer. I was reading a little about this in the documentation, but I couldn't get a very good feel for it. Is there a way I can do one query and select all the rows, and still be able to pull out that data? Is there anything I'm missing? It seems like it's harder than it should be. Any advice? Thanks!
Tobin JudayOK, I may have spoken too soon. I still seem to have the problem. Here's a chunk of my code, am I missing something dumb? Thank you...
resultSet1 = query1.getResultSet();
insert = conn.prepareStatement("INSERT....?,?,?)");
while (resultSet1.next())
insert.setBytes(23,resultSet1.getBytes("progtxt"));
insert.setInt(1, version);
insert.executeUpdate();
} -
LONG RAW Columns and Replication Set-up
we are working to set-up a replicated environment for all of
our Oracle Applications.
I could not get a clear understanding which Version Oracle will
support BLOB/CLOB/LONG RAW replication support or
Whether we can plan for Replicating such kind of Applications.
I read from one of Oracle Press book - "Oracle Backup &
Recovery" it is documented
that Oracle doesn't replication support for columns that use
BLOBs,CLOBs ( Page
no. 434 )
As one of our application was designed using LONG RAW Column, I
was wondering
about carrying the existing LONG RAW column to be replicated
like a CLOB/BLOB, if oracle supports Replication of BLOB/CLOB.
It will be of great help, if you can provide some insight in the
complexity of
having BLOBs in the applications to go further on making our
efforts to have a
Replicated environment set-up.
Thanking you in anticipation.
Bhanu Prakash
< [email protected]>1) LONG and LONG RAW have been depricated since 8i so you shouldn't be using them ever for anything.
2) LONG and LONG RAW don't even have decent support to be manipulated from PL/SQL so there is essentially no SQL support.
3) It would be very rare that you would have anything to index in a LONG or a LONG RAW from a functionality standpoint. You're not likely, for example, to want to store more than 4k of data in a LONG and then do things like search for strings that start with a particular phrase. You're very very unlikely to want to search a binary LONG RAW to look for rows where the binary data starts with a particular string of bytes. You'd potentially want to be able to use Oracle Text on a LONG field to search for particular words and phrases in the text but I'm not sure that existed prior to LONGs being depricated.
Justin
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