Unzipping BLOB in database

Hello,
I want to insert ZIP files as BLOB into a table. After the insert I want to unzip the BLOB into multiple CLOB's and insert them into another table (the ZIP file always contains ASCII files). I was thinking of the java zip/unzip functionality combined with a PL/SQL procedure.
Does anyone have experience with this functionality?
Does someone have sample code?
Thanks in advance.
Kind regards,
Peter

Hi Peter,
If you aren't familiar with the following URL, you may find something
there that can help you.
http://technet.oracle.com/sample_code/tech/java/sqlj_jdbc/files/advanced/advanced.htm
Hope it helps.
Good Luck,
Avi.

Similar Messages

Checking whether data exists in a BLOB type database column in Forms 6i

I am developing an application regarding inventory of a plant's spare parts. I am storing photo (.bmp) of spares in the database in a column of BLOB type. Once user punches spare's code, form displays spares data on screen using EXECUTE_QUERY. At this stage I want to check whether picture (.bmp) data was found in BLOB type database column or not. I want to take action accordingly. How to check this. If it would be a numeric column, I would have checked NULL but NULL does not work with BLOB type coloumns.
Pl. help.
Thanks in anticipation.

Did you look in the database documentation? The DBMS_LOB package has the method you need: getlength().
This was more of a database question than a Forms question, so you'd probably have more luck with these types of questions on one of the other forums, like the database or SQL forums.
Regards,
Robin Zimmermann
Forms Product Management

How to show in a report a pdf blob from database

Hi all
We are working on report 6i and report 10. We have a report wich needs to show a blob field from database that storages a pdf (type application/pdf). OLE2 is deprecated. The pdf blob field must be displayed in a preview and must be printed. In local, it works. When it works on a browser, the pdf blob field is missing. If we load the field into a pdf file, the field is not visible in the browser.
Do not get it to work. How I can implement? Could you give us any example for this?

In local, it works. What do you mean by that exactly? You see the pdf in Reports Builder?
If you just want to show the pdf in a browser (not embedded in a report) it is easy to use mod_plsql. You can have a simple db procedure like this to show any kind of blob:
procedure show_webdoc(io_blob    in out nocopy blob
                     ,i_mimetype in varchar2
                     ,i_filename in varchar2)
is
begin
   if dbms_lob.getlength(io_blob) >0 then
      owa_util.mime_header(nvl(i_mimetype,'application/octet'),false);
      htp.p('Content-length: ' || dbms_lob.getlength(io_blob));
      htp.p('Content-Disposition: inline; filename="'||i_filename|| '"');
      owa_util.http_header_close;
      wpg_docload.download_file(io_blob);
   end if;
end show_webdoc;

Displaying PDF files (stored as BLOBs in Database) using Forms 6i

Hi,
We have PDF and Word documents stored in Database (Version 8.1.7). We are using Oracle Forms 6i as User Interface. Through Forms we could view word documents which are stored in database, using OLE container.
But we could not view PDF files.
It would be more helpful and valuable if I get ideas/suggestions on this.
Thanks in advance,
Umasankar

Frank,
You are correct, I totally agree with you.
TOAD software which i suggested was not for user interface but more for testing purpose - To ensure that the documents is uploaded to BLOBS correctly.
I am not a WEB person, but I believe sugnificant coding is required in forms6i/9i with WEB features to display the respective documents.
If, the purpose in ONLY for testing, then TOAD can be used which requires no coding.
-- Shailender Mehta --

Print image (stored in BLOB in database) on the margin - Oracle Reports 6i

Hi all,
I would like to print an image with is in the database as BLOB field.
I can not retrieve the image with a query in the data model because the column will not have the correct frequency to appear in the margin.
I can not retrieve the image in trigger reports because I can not store the result in parameter or placeholder columns can not take BLOB.
How can I do that?
Thanks.

Hello,
I have achieved this by doing so:
In Data Model:
Create a query where you select the blob (ideally 1 record). A group will be created.
In Layout Model:
Create a repeating frame in the margin, set the source to group based on query where blob is retrieved.
Insert a field in the repeating frame, set Source to blob field and File Format to Image.
Regards,
Avinash

Displaying BLOB from Database

Hi All,
I am trying to preview a 'jpeg' image which is stored in my database. The images get inserted into the DB without any trouble, but on retrieving the images I get 'broken links' to the images. Please Help:
PROCEDURE GET_TEAM_LOGO(team_name VARCHAR2)
AS
vblob BLOB;
buf RAW(32000);
buf_size INTEGER := 32000;
offset INTEGER := 1;
len NUMBER;
mime_type VARCHAR2(30);
BEGIN
auth_proc;
-- get image_data and its mime type from the database
WHERE LOGO_ID=position;
htp.p('This is the value of team:'|| team_name ||' ');
SELECT logo_image, logo_type INTO vblob, mime_type
FROM LOGO_TABLE
WHERE group_name = team_name;
-- set the mime type for the http protocol
owa_util.mime_header('image/jpeg');
-- read the data with htp package
len:=dbms_lob.getlength(vblob);
WHILE offset < len LOOP
dbms_lob.read(vblob,buf_size,offset,buf);
htp.prn(utl_raw.cast_to_varchar2(buf));
offset:=offset+buf_size;
END LOOP;
-- check for exception
EXCEPTION
WHEN OTHERS THEN
htp.p(SQLCODE || SQLERRM);
END;
Thanks,
Peter

Hi!
I've used this code successfylly in a mod_plsql procedure.
Can be used as following:
htp.img('http://yourhost:port/<dad>/image.get_image?p_picture_id=123,'"right"',null,null,'width=107 height=66 border=1');
procedure get_image
( p_picture_id number
) as
cursor c_pict
( b_picture_id number
) is
select pict.picture -- blob column
, pict.format -- Gif/Jpeg etc.
from pictures pict
where pict.picture_id = b_picture_id
r_pict c_pict%rowtype;
v_blob BLOB;
v_amt NUMBER := 30;
v_off NUMBER := 1;
v_raw RAW(4096);
begin
open c_pict(p_picture_id);
fetch c_pict into r_pict;
if c_pict%notfound
then
close c_pict;
else
close c_pict;
owa_util.mime_header('image/'||r_pict.format);
begin
loop
dbms_lob.read(r_pict.picture,v_amt,v_off,v_raw);
htp.prn(utl_raw.cast_to_varchar2(v_raw));
v_off := v_off+v_amt;
v_amt := 4096;
end loop;
exception
when no_data_found
then
null;
end;
end if;
end get_image;

Retrieval of image (Blob) from database - doesn't always work in JSP - Why?

In my JSP pages, when an image needs to be retrieved, I direct <img src> to a servlet that handles image processing.
As an example, if I have 30 products that need to be shown on 1 webpage, there will be 30, dynamically generated, <img src="go.imageServlet?id=a1"> tags/statements. The servlet, when called, will make a connection to the database, run a query for the image requested (fetched as type Blob), image displays in <img src> area of JSP page, and finally the ResultSet, Statement, and Connection object(s) are closed.
I tested this out, and unfortunately, to my surprise, and disappointment, a few images did not display on the page. Though the images are in the database table. I'm a little lost as to why this problem is occurring.
Can someone please shed some light on this for me?

evnafets wrote:
If you request just one image, does that image come back broken, or is it different images that are 'broken' each time?On a page of almost 30 image requests (thumbnail size), it varies, but typically, 1-3 images are 'broken' each time. And they are not always the same images. Very strange.
There may potentially be thread concurrency errors depending upon how you have written your servlet - ie one request for an image interfering with another because they use the same variable.
To make it threadsafe, in your servlet make sure that you only use variables local to the doGet/doPost method, and not any class attributes.In my JSP page that makes the requests for these images, a String array generates the <img src> tags on the page, as a very basic example :
<% for(int i=0; i<products.length; i++) {
%>
 <img src="go.imageP?imageNumber=<%=products[[0]%>">
<% }//for %>
Sorry for not posting code snippets from my servlet in my first post of this topic....
Here is my servlet snippet - public class ImageProcessingServlet extends HttpServlet {
 public Connection conn = null;
 public ResultSet rs = null;
 public Statement stmt = null;
 public PreparedStatement pstmt = null;
 public PrintWriter out = null;
 public String siteNameReference = "";
 int maxFullSizeImageWidth = 600;
 int maxSizeImageWidth = 300;
 int maxSizeThumbWidth = 140;
 int maxImageFields = 4;
 String errorMessage = "";
 public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
 doPost(req,res);
 public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
 try {
 HttpSession session = req.getSession();
 siteNameReference = req.getParameter("snr");
 String process = req.getParameter("process");
 if(process == null) process = "";
 Context ctx = new InitialContext();
 if(ctx == null )
throw new Exception("Boom - No Context");
 DataSource ds = (DataSource)ctx.lookup("java:comp/env/jdbc/imageDB");
 conn = ds.getConnection();
 stmt = conn.createStatement();
 rs = stmt.executeQuery("Select "+imageNumber+" from images");
 rs.next();
 Blob blobImage = rs.getBlob(1);
 getImage(blobImage,"thumb",res);
 if(rs != null) { rs.close(); }
 rs = null;
 if(stmt != null) { stmt.close(); }
 stmt = null;
 if(pstmt != null) { pstmt.close(); }
 pstmt = null;
 conn.close();
 conn = null;
 }//try
 catch (Exception e) { }
 finally {
 if (rs != null) {
 try { rs.close(); } catch (SQLException e) { ; }
 rs = null;
 if (stmt != null) {
 try { stmt.close(); } catch (SQLException e) { ; }
 stmt = null;
 if (pstmt != null) {
 try { pstmt.close(); } catch (SQLException e) { ; }
 pstmt = null;
 if (conn != null) {
 try { conn.close(); } catch (SQLException e) { ; }
 conn = null;
 }//finally
 }//post
 public void getImage(Blob blobImage, String imageType, HttpServletResponse res) {
 try {
 //imageType will = Super = 600
 // = Large = 300
 // = Thumb = 150
 res.reset();
 res.setContentType("image/jpeg");
 BufferedInputStream bis = new BufferedInputStream(blobImage.getBinaryStream());
 BufferedOutputStream bos = new BufferedOutputStream(res.getOutputStream());
 if(imageType.equals("super")) {
 byte[] imageBytes = new byte[(int)blobImage.length()]; //picture size
 int length;
 while((length = bis.read(imageBytes)) > 0) {
bos.write(imageBytes, 0, length);
 bos.flush();
 res.flushBuffer();
 } else
 if(imageType.equals("large")) {
 resize(bis,bos,maxSizeImageWidth);
 bos.flush();
 res.flushBuffer();
 } else
 if(imageType.equals("thumb")) {
 resize(bis,bos,maxSizeThumbWidth);
 bos.flush();
 res.flushBuffer();
 }//if
 //close streams
 bis.close();
 bos.close();
 }//try
 catch(Exception e) {}
 }//end
 public void resize(BufferedInputStream bis, BufferedOutputStream bos, int maxImageWidth) {
 try {
 BufferedImage bufimg = ImageIO.read(bis);
 //size of image
 int img_width = bufimg.getWidth();
 int img_height = bufimg.getHeight();
 double scale = (double)maxImageWidth/(double)img_width;
 Image sized = getScaledInstanceAWT(bufimg, scale, Image.SCALE_SMOOTH);
 //convert image to BufferedImage
 BufferedImage resized = toBufferedImage(sized, BufferedImage.TYPE_INT_RGB);
 ImageIO.write(resized,"jpeg",bos);
 }//try
 catch(Exception e){}
}//end
Edited by: webnotick on Apr 13, 2010 12:24 PM
--added a method to the code snippet --

Need to Move contents of BLOB from database to middle-tier file system

I need to be able to move the contents of a BLOB (which is a PDF file) from the database to a specified location in the middle-tier file system (running 9iAS). There does not seem to be the equivalent package or other built-in functionality to DBMS_LOB (for moving INTO the database, which is amazing. Does anyone have a java bean or (?) which can accomplish this simingly simple task??

The java bean should work to extract from the database to a binary file on either Unix or Windows. As long as the file is in .bmp format in the database, you can save the file as .bmp on you file system and everything should be alright.
Or, perhaps, am I not understanding your question?
Good Luck
Eric Kamradt

BLOBs and Database Links

Do Blobs work through Database Links? I have images in one database that I would like to render in a portal attached to another.

Hi I tried the following in sqlplus:
1)create a table(ATAB_CLOB) in a remote database(DB2) with a clob column
2)connect to the database(DB1) and create a database link (ADBLINK1) for the
remote database(DB2) .
3) create a synonym (ASYN_TAB) based on the remote table (ATAB_CLOB) using the
database link ADBLINK.
4) Now try to create a view based on this synonym,I see the same error:
SQL> create or replace view aview2 as select * from asyn_Tab;
create or replace view aview2 as select * from asyn_Tab
ERROR at line 1:
ORA-22992: cannot use LOB locators selected from remote tables
The message says it all.
This is a database limitation.
Hope this helps.
Anu

Convert BLOB from database to string

Hi All,
I have retrieved the blob data from my database , and now i have it in my InvokeVariable. The below details will brief the structure of my output variable.
<variable name="Invoke1_RetrieveRecordForInstanceId_OutputVariable"
messageType="*ns1:RetrieveRecordForInstanceIdOutputCollection_msg*"/>
<wsdl:message name="RetrieveRecordForInstanceIdOutputCollection_msg">
<wsdl:part name="RetrieveRecordForInstanceIdOutputCollection" element="db:RetrieveRecordForInstanceIdOutputCollection"/>
</wsdl:message>
<xs:complexType name="RetrieveRecordForInstanceIdOutputCollection">
<xs:sequence>
<xs:element name="RetrieveRecordForInstanceIdOutput" type="RetrieveRecordForInstanceIdOutput" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="RetrieveRecordForInstanceIdOutput">
<xs:sequence>
<xs:element name="INSTANCE_ID" type="xs:decimal" nillable="true"/>
<xs:element name="SOURCE_XML" type="xs:base64Binary" nillable="true"/>
<xs:element name="TARGET_XML" type="xs:base64Binary" nillable="true"/>
</xs:sequence>
</xs:complexType>
I make my assign statement like below.
<assign name="Assign2">
<copy>
<from variable="Invoke1_RetrieveRecordForInstanceId_OutputVariable"
part="RetrieveRecordForInstanceIdOutputCollection"
query="/ns2:RetrieveRecordForInstanceIdOutputCollection/ns2:RetrieveRecordForInstanceIdOutput/ns2:SOURCE_XML"/>
<to variable="EnhancedBLOBdata"/>
</copy>
</assign>
I have my java code for converting the blob to string as below.
String input = (String)getVariableData("*EnhancedBLOBdata*");
Base64Decoder baseDecoder= new Base64Decoder();
try {
byte[] decodedBytes = input.getBytes();
String decoded = new String(decodedBytes);
//String decoded = Base64Decoder.decode(input);
setVariableData("DecodedString", decoded);
catch(Exception ex)
ex.printStackTrace();
The data type of EnhancedBLOBdata is base64Binary.. I also checked with 'string' . Even then i dint get the proper decoded form.
Can anyone help me in using the variable SOURCE_XML coming under the RetrieveRecordForInstanceIdOutputCollection, directly in the line,
String input = (String)getVariableData("*Invoke_Output_Variable....<some format>*");
so that there is no need of assigning to some other variable.. Bcz while assignig i am not sure, the assigned variable contains data in blob format.
Kindly help me in this regard.
Thanks,
Sabarisri. N

I have figured out the error happens on a data picture with about 700KB of data all of the other data fields have less than 100KB. Is there a way around this size issue.

Convert BLOB from database to XML. - *URGENT*

Hi,
I have converted xml data into BLOB object and inserted into database.
Now when I retrieve the BLOB object,from my DB, using DBadapter, in the invokeOutputVariable, i have the following. This i copied from the 'Flow Trace'
<Invoke1_GetSourceXML_OutputVariable>
<part name="GetSourceXMLOutputCollection" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<GetSourceXMLOutputCollection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.oracle.com/pcbpel/adapter/db/GetSourceXML">
<GetSourceXMLOutput>
<INSTANCE_ID>1</INSTANCE_ID>
*<SOURCE_XML>weblogic.jdbc.wrapper.Blob_oracle_sql_BLOB@78f9a</SOURCE_XML>*
<TARGET_XML xsi:nil="true"/>
<ORDER_ID>1</ORDER_ID>
<TASK_INSTANCE_ID>1</TASK_INSTANCE_ID>
<ORDER_DATE xsi:nil="true"/>
<TRANSLATION_TYP_CD xsi:nil="true"/>
<EBM_ID>1</EBM_ID>
<STATUS xsi:nil="true"/>
<STATUS_DETAIL xsi:nil="true"/>
</GetSourceXMLOutput>
</GetSourceXMLOutputCollection>
</part>
</Invoke1_GetSourceXML_OutputVariable>
1) Here i want to confirm, whether we l get weblogic.jdbc.wrapper.Blob_oracle_sql_BLOB@78f9a sort of value when we retrieve a BLOB object.
2) Variable declaration is like below.
<variable name="binaryXML" type="xsd:string"/>
<variable name="decodedString" type="xsd:string"/>
binaryXML - value assignment_
<assign name="Assign2">
<copy>
<from variable="Invoke1_GetSourceXML_OutputVariable"
part="GetSourceXMLOutputCollection"
query="/ns2:GetSourceXMLOutputCollection/ns2:GetSourceXMLOutput/ns2:*SOURCE_XML*"/>
<to variable="binaryXML"/>
</copy>
</assign>
I have written java embedding code for converting this BLOB to xml as below
String input = (String)getVariableData("binaryXML");
try
/* *** INITIALLY I TRIED LIKE THIS*** */
//byte[] decodedBytes = Base64Decoder.decode(input.getBytes());
//String decoded = new String(decodedBytes);
//setVariableData("decodedString",decoded);
/* *** MY NEW CODE *** /
String decoded = Base64Decoder.decode(input);
setVariableData("decodedString",decoded);
catch(Exception ex)
ex.printStackTrace();
My Doubt
When I try to write this 'decodedString' to a .txt file, I couldnt find any output there.
<assign name="Assign3">
<copy>
<from variable="decodedString"/>
<to variable="Invoke2_Write_InputVariable" part="body"
query="/ns4:Root/ns4:C1"/>
</copy>
</assign>
Regarding the schema for the file to be written, i tried with 'opaque' schema.. I dint work. Later i tried with the schema as below (which is comma delimited)
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:nxsd="http://xmlns.oracle.com/pcbpel/nxsd"
xmlns:tns="http://TargetNamespace.com/WriteToFile"
targetNamespace="http://TargetNamespace.com/WriteToFile"
elementFormDefault="qualified"
attributeFormDefault="unqualified"
nxsd:version="NXSD"
nxsd:stream="chars"
nxsd:encoding="US-ASCII"
>
<xsd:element name="Root">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="C1" type="xsd:string" nxsd:style="terminated" nxsd:terminatedBy="," nxsd:quotedBy=""" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
Kindly help me in ths regard.
Thanks,
Sabarisri. N
Edited by: Sabarisri N on Jul 22, 2011 2:37 PM

Read this :
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14252/adx_j_xsu.htm#sthref508

Getting blobs from databases

Hi!
Im trying to get a blob from a database and write it to a file, but I just can't get the Blob value, I just recieve the adress. I've tried InputStream and getBytes but none of them does what I want. getBytes where closest but because it requires two inparameters (long pos, int length) and blob.length gives an long i can't figure out how many bytes to get. Anyone got any sugestions?

Agrawal.
I've read through both those pages (even thou i've already managed to make the connection to mysql) and I still can't work around my problem. the method getBytes(), requires two parameters, one that tells it where to start reading and one telling it how long it should read. If I leave one out it will inevitable lead to problems. So I still need to figure out a way to get the length of the blob in a int to make this work. but since the blob.length() method returns a long wich I can't convert I'm stuck!

Report with a Download link for a Pdf stored in Blob in database FND tables

We attach a pdf file in the Receivables invoices in Oracle EBS. We use APEX to report from EBS tables. We have a requirement to have a APEX report to display the pdf attached to the invoices with a capability to download the pdf. These pdf are stored in a blob column in fnd_lobs table.
Any pointers on how to approach is highly appreciated.
Thanks
Jo

check this How to Upload and Download Files in an Application
let me know if you have any doubts

Dowload blobs from Database

I know this is not the best way to store files but I have inherited an old php script which I am converting to CF because php is useless.
Now i have a script to do this in php but can this be achived with CF? It is just a quick fix until I have time to rework the CMS
<?php
if(isset($_GET['id']))
// if id is set then get the file with the id from database
$id = $_GET['id'];
$query = "SELECT name, type, size, content " .
 "FROM upload WHERE id = '$id'";
$result = mysql_query($query) or die('Error, query failed');
list($name, $type, $size, $content) = mysql_fetch_array($result);
header("Content-length: $size");
header("Content-type: $type");
header("Content-Disposition: attachment; filename=$name");
echo $content;
i
exit;
?>

My php experience is NILL, but applying basic coding experience I believe your CFML will be close to this.
<cfif structKeyExists(url,"id")>
<cfquery datasource="..." name="result">
 SELECT name,type,size,content
 FROM upload
 WHERE id = <cfqueryparam value="#url.id#" cfsqltype="cf_sql_integer">
</cfquery>
<cfheader name="Content-Disposition: atachment; filename=#result.name#">
<cfcontent type="#result.type#" reset="yes">
#result.content#
</cfif>
If any of this content can be binary, then you may also need to use one or more of the toBinary() toBase64(), isBinary(), binaryDecode() or other relevant functions.

BLOB insertion in Oracle 10g database using ojdbc14 (10g drivers)

Hello!
I have a situation where I am trying to insert a blob data into oracle 10g database using oracle thin
10g drivers, ojdbc14.jar in weblogic 8.1 sp2. I have the following error happening very intermittently.
java.sql.SQLException: OALL8 is in an inconsistent state.
And this is leading to the "No more data to read from socket" error when I am trying to
insert the BLOB into the database. I have gone through the bug list of SP2 and have realised there is the
following issue fixed in SP3.
CR124933
An Oracle BLOB sometimes used a pooled connection after the connection pool determined that
the connection was available for reassignment.
Code was added to ensure the BLOB is completely processed before closing the pool connection or
ending the transaction.
I believe the problem arises when we try to insert BLOB into database using a refreshed connection
from the pool.We have upgraded weblogic 8.1 from SP2 to SP4 service pack inorder to come over the above problem.
But this still continues to behave intermittently.
We put ojdbc14.jar in our classpath and Weblogic startup classpath looks like the following :-
WLS_CLASSPATH=${WLS_DOMAIN_DIR}/appslib/server.jar:$PRE_CLASSPATH:${WLS_WEBLOGIC_HOME}/server/lib/weblogic.jar:
${WLS_WEBLOGIC_HOME}/server/lib/ojdbc14.jar:${WLS_WEBLOGIC_HOME}/server/lib:${WLS_JAVA_HOME}/lib/tools.jar:
${WLS_JAVA_HOME}/jre/lib/rt.jar:${WLS_WEBLOGIC_HOME}/server/lib/webservices.jar:${WLS_CONFIG_DIR}:
${WLS_CUSTLIB_DIR}:${WLS_BIN_DIR}:$POST_CLASSPATH
export WLS_CLASSPATH
CLASSPATH=${WLS_CLASSPATH}:${APP_CLASSPATH}
export CLASSPATH
After upgrade to SP4, there are new ojdbc14_g.jar(debug jar) and orai18n.jar jars in the ${WLS_WEBLOGIC_HOME}/server/ext/jdbc/oracle/10g directory added.
Please let me know if I need to update classpath with the new 10g jars in the ext/lib directory or any suggestions
to insert BLOB using the ojdbc14 10G drivers, Weblogic 8.1 environment would be appreciated.
Following is the stack trace of the errors that I recieve:
<Oct 6, 2005 1:29:36 PM EDT> <Error> <JDBC> <BEA-001112> <Test "select count(*) from DUAL" set up for pool
"MHUBPoolStage" failed with exception: "java.sql.SQLException: OALL8 is in an inconsistent state".>
<Oct 6, 2005 1:29:36 PM EDT> <Info> <JDBC> <BEA-001128> <Connection for pool "MHUBPoolStage" closed.>
<Oct 6, 2005 1:29:36 PM EDT> <Info> <JDBC> <BEA-001067> <Connection for pool "MHUBPoolStage" refreshed.>
<Oct 6, 2005 1:29:36 PM EDT> <Info> <EJB> <BEA-010051>
java.rmi.RemoteException: TransactionRequestManager.requestTransaction():
Caught PersistnceException com.mortgagehub.busobj.PersistenceException: -5258: No more data to read from socket
Please let me know if there is anything that I am missing.
Thanks
Pradeep G

pradeep g wrote:
Hello!
I have a situation where I am trying to insert a blob data into oracle 10g database using oracle thin
10g drivers, ojdbc14.jar in weblogic 8.1 sp2. I have the following error happening very intermittently.
> java.sql.SQLException: OALL8 is in an inconsistent state.
And this is leading to the "No more data to read from socket" error when I am trying to
insert the BLOB into the database. I have gone through the bug list of SP2 and have realised there is the
following issue fixed in SP3.
> CR124933
An Oracle BLOB sometimes used a pooled connection after the connection pool determined that
the connection was available for reassignment.
Code was added to ensure the BLOB is completely processed before closing the pool connection or
ending the transaction.
> I believe the problem arises when we try to insert BLOB into database using a refreshed connection
from the pool.We have upgraded weblogic 8.1 from SP2 to SP4 service pack inorder to come over the above problem.
But this still continues to behave intermittently.
We put ojdbc14.jar in our classpath and Weblogic startup classpath looks like the following :-
> WLS_CLASSPATH=${WLS_DOMAIN_DIR}/appslib/server.jar:$PRE_CLASSPATH:${WLS_WEBLOGIC_HOME}/server/lib/weblogic.jar:
${WLS_WEBLOGIC_HOME}/server/lib/ojdbc14.jar:${WLS_WEBLOGIC_HOME}/server/lib:${WLS_JAVA_HOME}/lib/tools.jar:
${WLS_JAVA_HOME}/jre/lib/rt.jar:${WLS_WEBLOGIC_HOME}/server/lib/webservices.jar:${WLS_CONFIG_DIR}:
${WLS_CUSTLIB_DIR}:${WLS_BIN_DIR}:$POST_CLASSPATH
export WLS_CLASSPATH
CLASSPATH=${WLS_CLASSPATH}:${APP_CLASSPATH}
export CLASSPATH
> After upgrade to SP4, there are new ojdbc14_g.jar(debug jar) and orai18n.jar jars in the ${WLS_WEBLOGIC_HOME}/server/ext/jdbc/oracle/10g directory added.
> Please let me know if I need to update classpath with the new 10g jars in the ext/lib directory or any suggestions
to insert BLOB using the ojdbc14 10G drivers, Weblogic 8.1 environment would be appreciated.
> Following is the stack trace of the errors that I recieve:
> <Oct 6, 2005 1:29:36 PM EDT> <Error> <JDBC> <BEA-001112> <Test "select count(*) from DUAL" set up for pool
"MHUBPoolStage" failed with exception: "java.sql.SQLException: OALL8 is in an inconsistent state".>
<Oct 6, 2005 1:29:36 PM EDT> <Info> <JDBC> <BEA-001128> <Connection for pool "MHUBPoolStage" closed.>
<Oct 6, 2005 1:29:36 PM EDT> <Info> <JDBC> <BEA-001067> <Connection for pool "MHUBPoolStage" refreshed.>
<Oct 6, 2005 1:29:36 PM EDT> <Info> <EJB> <BEA-010051>
java.rmi.RemoteException: TransactionRequestManager.requestTransaction():
Caught PersistnceException com.mortgagehub.busobj.PersistenceException: -5258: No more data to read from socket
Please let me know if there is anything that I am missing.
> Thanks
> Pradeep GHi. This is something we'd like to diagnose. How is your application
getting using and closing pool connections? The initial symptom
seems to be an internal oracle problem... Are you using standard
JDBC or oracle-specific calls?
Joe

Unzipping BLOB in database

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