Help! Problem Updating Blob Columns

Good day
Please i have problems updating Blob columns storing images and doc files. can someone put me through the way out hassle free
Thank You
God Bless U all
Femi

I keep geting this error
java.sql.SQLException: ORA-01729: database link name expected
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:216)
at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:955)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1169)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3285)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3368)
when ever i try to update The Blob colum with a Blob object retrieved by resultset.getBlob from another Blob column of a different table.
Blob b = rset.getBlob(1);
String x = (String)jComboBox2.getSelectedItem();
     ps=c.prepareStatement("UPDATE PROPERTIES SET "+x+" = "+b+" WHERE NAME = ?");
     ps.setString(1, (String)jComboBox1.getSelectedItem());
     System.out.println("success");
     ps.executeUpdate();

Similar Messages

Problem Updating BLOB Data in DB

Hi, There,
I have a problem when updating BLOB data in database table. I am
using Oracle 8.1.6, JDK1.3.0., oracle thin driver.
I have a Handle object handle (javax.ejb.Handle), and I need to
save this object in DB. The table has 2 columns: column 1
is "PK" Varchar2(30) Primary Key, column 2 is "HANDLE" BLOB.
According to the documentation I found from Oracle, I first
initialize the blob column, and then get the BLOB locator.
However when I try to update the BLOB data by invoking
executeUpdate() method on OraclePreparedStatement ops, I always
get the returned int rowCount=0, which indicates that no rows
have been updated. (This is verified by trying to retrieve the
BLOB column value which results in SQLException: Exhausted
Resultset.)
Any suggestions what was wrong with the code? Thank you a lot in
advance!
Tom
Part of the code is listed below:
// If jSessionID is not found, create it
HttpSession session = request.getSession(true);
String jSessionID = session.getId();
//get the Hanlde object for MemberInfo bean
javax.ejb.Handle handle = memberValidate.validateMember(
memberID, "" );
oracle.sql.BLOB oracleBlob = null;
/* Get DB connection */
try
Connection conn = getDBConnection(); // with oracle thin driver
conn.setAutoCommit(false);
catch (NamingException ne)
System.out.println( "Failed to getDBConnection due to Naming
Exception" + ne.toString() );
return;
catch (SQLException sqle)
System.out.println( "Failed to getDBConnection due to SQL
Exception"+ sqle.toString() );
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try
pstmt=conn.prepareStatement("CREATE TABLE TOM1 (PK VARCHAR(30)
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pstmt.execute();
pstmt=conn.prepareStatement("INSERT INTO TOM1 VALUES('ROW1',
EMPTY_BLOB())");
pstmt.executeUpdate();
pstmt=conn.prepareStatement("SELECT HANDLE FROM TOM1 WHERE
PK=? FOR UPDATE");
pstmt.setString(1, "ROW1");
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if ( rset.next() )
// Get the LOB locator from the ResultSet
oracleBlob = ((OracleResultSet)rset).getBLOB("HANDLE");
OraclePreparedStatement ops = null;
ops = ( OraclePreparedStatement )
(conn.prepareStatement("UPDATE TOM1 SET HANDLE = ?
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ops.setString( 2, jSessionID );
// using OutputStream to write object data
OutputStream oStream = oracleBlob.getBinaryOutputStream();
ObjectOutputStream outStream = new ObjectOutputStream
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conn.commit();
conn.setAutoCommit(true);
ops.setBLOB( 1, oracleBlob );
int rowCount = ops.executeUpdate();
System.out.println("\n**** Rows affected: ");
System.out.println(ops.executeUpdate());
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null

You cannot update Blob column in Adf testing tool as far i think
check this blog might help you to store images in ADF http://baigsorcl.blogspot.com/2010/09/store-images-in-blob-in-oracle-adf.html

Error when updating blob column

Hello,
im using the SQL-Developer and i have problems with updating blob columns.
I'm getting the following error:
UPDATE "MED400_INSTALL"."AMEDN_INSURANCE_TEMPL" SET WHERE ROWID = 'AAM6j5ABGAAAADpAAJ' AND ORA_ROWSCN = '26019698898'
One error saving changes to table "MED400_INSTALL"."AMEDN_INSURANCE_TEMPL":
Row 15: ORA-01410: Ungültige ROWID
I'm updating different tables and different rows.
This error is not shown in all cases. I can update some rows but not all off them.
Is this a bug?
TIA

I made some further investigations and have some more results.
- the problem does not occur all the time
- the problem seems to occur in the following situation
- User A: updates the blob-field using the sql developer menu and commits (-> success)
- User B: updates the blob-field using the sql developer menu and tries to commit (-> error)
- the error stays until User B does a rollback, after the rollback user B can update the blob-field! and user A gets the error.
Here are some extracts of sql developer log. It shows that the same row can be updated in somes cases, in others cases you get an error. After a rollback the field can be updated successfully The rowid ist the same. ora_rowscn is different:
UPDATE "AZUBI2"."AMEDN_INSURANCE_TEMPL" SET WHERE ROWID = 'AAc6TTACEAAAAHQAAC' AND ORA_ROWSCN = '26087686991'
One error saving changes to table "AZUBI2"."AMEDN_INSURANCE_TEMPL":
Row 1: ORA-01410: Ungültige ROWID
Rollback Successful
UPDATE "AZUBI2"."AMEDN_INSURANCE_TEMPL" SET WHERE ROWID = 'AAc6TTACEAAAAHQAAC' AND ORA_ROWSCN = '26087687075'
Commit Successful
I could offer a dump where you can possibly reproduce this issue. Where can I send or upload it.
Best regards,
zebadmin

Problem at update blob columns.

Hi,i have a table like this.
create table customer
(id number,
photo blob,
sign blob,
pass_view blob);
I have a form based to this table (at 9i) which has 3 image item.
By using webutil i read image files to this items and after commit i stored them to database.There is no problem up to this time,inserting data to database seems correct.
Now i want to update an imge from database and I open form again and execute query.All 3 images was seen.I changed 3rd pass_view image again by reading another image file from file system.After commit and execute_query again i understood that photo column is now having new pass_view image and pass_view column is null.
In trying different loading to different images,i have problems again.
Only if i read 3 images from 3 files to image items again,i have no problem in updating.
Is there a problem in having 3 blob columns in a table?

I have the problem even with 2 images (2 BLOB fields in table).
Forms application updates the first image if you replace only the second image. If you replace both images everything is correct.
Honestly speaking I have this problem with 9.0.2 version and probably in couple weeks I'll test it on 9.0.4.
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Problem with blob column index created using Oracle Text.

Hi,
I'm running Oracle Database 10g 10.2.0.1.0 standard edition one, on windows server 2003 R2 x64.
I have a table with a blob column which contains pdf document.
Then, I create an index using the following script so that I can do fulltext search using Oracle Text.
CREATE INDEX DMCS.T_DMCS_FILE_DF_FILE_IDX ON DMCS.T_DMCS_FILE
(DF_FILE)
INDEXTYPE IS CTXSYS.CONTEXT
PARAMETERS('DATASTORE CTXSYS.DEFAULT_DATASTORE');
However, the index is not searchable and I check the following tables created by database for my index and found them to be empty as well !!
DR$T_DMCS_FILE_DF_FILE_IDX$I
DR$T_DMCS_FILE_DF_FILE_IDX$K
DR$T_DMCS_FILE_DF_FILE_IDX$N
DR$T_DMCS_FILE_DF_FILE_IDX$R
I wonder what's wrong with it.
My user has been granted the ctx_app role and I have other tables that store plain text which I use Oracle Text are fine. I even output the blob column and save as pdf file and they are fine.
However the database seems like not indexing my blob column although the index can be created without error.
Please advise.
Really appreciate anyone who can help.
Thank you.

The situation is I have already loaded a few pdf document into the table's blob column.
After I create the Oracle text index on this blob column, I find the system generated index tables listed in my earlier posting are empty, except for the 4th table.
Normally we'll see words inside the table where those are the words indexed by oracle text on my document.
As a result, no matter how i search for the index using select statement with contains operator, it will not give me any result.
I feel weird why the blob is not indexed. The content of the blob are actually valid because I tested this by export the content back to pdf and I can still view and search within the pdf.
Regards,
Jap.

Update blob column

dear all
I am new to oracle database...
and i create one BLOB column to insert the images..
i can insert and retrieve the image data...
but i cant update this column...
can any one guide me to do this.
i tried to empty the column and update but still fails..
update tablename set columnname=empty_blob()
i tried the above and its clear the data ...but again i cant update this ...
i am using oracle 10g express edition.
any suggestion
thank you

i tried to empty the column and update but still fails..How does it fail? Please describe the behaviour in more detail, including any error messages and related information.
Cheers, APC
blog: http://radiofreetooting.blogspot.com

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SQL> desc searchengine;
Name Null? Type
ENGINE_ID NOT NULL NUMBER(38)
ENGINEHTML LONG
SQL> set long 10000
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ERROR at line 1:
ORA-01489: result of string concatenation is too long
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<IMG SRC=/gifs/start/looksmart_websearch.gif width=85 height=25 ALIGN=BOTTOM BORDER=0><BR>
</TD></TR><TR><TD HEIGHT=20 VALIGN=TOP COLSPAN=2><INPUT TYPE=hidden NAME=URL VALUE=http://www.looksmart.com/r_search>
<input type=hidden name=search value=0><input type=hidden name=comefrom value="izbx-search">
<input type=hidden name=isp value=zbx><INPUT NAME=key SIZE="22"><br><center>
<INPUT TYPE="IMAGE" SRC=/gifs/start/search.gif WIDTH=53 HEIGHT=15 ALIGN=BOTTOM border=0 NAME=search
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<SELECT name="select" onChange="dropDown(document.Go3.select.options[Go3.select.selectedIndex].value);">
<option value="">...or select a category</option>
<option value="http://www.looksmart.com/eus1/eus53930/r?' | | '&' | | 'izbx' | | '&' | | 'comefrom=izbx-eus53930" target=_top>Automotive</option>
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Yes Prathap, I need to update a single column of type number in the search results table.but each of that column value would be updated with different values like one row in that column will take a value 325 while another will take 500 etc based on user input.
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Hi,
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ID VARCHAR2(4 BYTE),
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TYPE NUMBER
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Hi,
Here's one way:
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Hi all,
Ik have created an attribute (as part of an Entity Object and a View object) on top of a blob column.
With JHeadstart I generated one insert group (display type fileUpload) and one query group (display type image).
I managed to upload (and store) pictures.
However when I query the pictures the folowing occurs:
1. when I scroll through the records the first time the picture is shown OK
2. the secod time when I scroll through the same dataset the picture is not shown...
3. when I restart the pageGroup, the pictures are shown..
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I have some ascii files being stored in our DB as blobs.
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Anyone have some guidance on this?

>
Is this more clear?
>
Not quite.
Did you use sqlloader initially to load the files?
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Help! Problem Updating Blob Columns

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