Show photoes using blob field in Oracle DB

When create Crystal report using Blob field in Oracle 10g DB, the photoes are tif format stored in blod and there are multipages for every record. However in the Crystal Report,it just show the first page of the photo.
Are there some ways to display all the pages? Or is it necessary to programming using java or .net to display?

Not capable. CR will only show the first picture and not an album.

Similar Messages

Can we use BLOB fields (that store images) in Crystal Report ?

I'm developing with ASP.NET, VS.NET 2003.
Using Crystal Report for VS.NET
DataBase: Oracle 10g
I store a BLOB field in a table. This field store images, like jpg files.
The Stored Procedure that I use to fill the report is:
OPEN MyCursor FOR
SELECT MyId , MyImg
FROM MyTable
MyImg is BLOB field
However, when I try to use the stored procedure in Crystal Report at design mode, any field can be displayed and then drag and drop to the report, but MyImg is not possible.
There is an error message:
Details: ADO Error Code: 0x80004005
Source: Microsoft OLE DB Provider for Oracle
Description: Data type is not supported
I'm afraid that is not so easy for me to change DB connector drivers.
My question is:
- Is it possible to use BLOB fields in Cyrstal Reports?
- Or should I convert them previously to something, so they can be displayed in Crystal Report at desing mode ?
- If I should change DB connector drivers, which one should I use and from where should I download it and then install it in my Web Server?
Thank you very much!

Hi,
I dont know much at all about CR, but I do know Microsoft's OLEDB Provider for Oracle doesnt support Blob datatype.. http://support.microsoft.com/kb/q244661/
Oracle's OLEDB provider does though, you can get it as part of the ODAC download on OTN.
Hope that helps,
Greg

Error when reading BLOB field from Oracle usin Toplink

We experience a very annoying problem when trying to read a BLOB
field from Oracle 8.1.6.2.0 using TOPLink 3.6.3. I have attached the
exception stack trace that is reported to the console. As far as I can
judge a fault at oracle.sql.LobPlsqlUtil.plsql_length() happens first and
then at TOPLink.Private.DatabaseAccess.DatabasePlatform.convertObject().
The exception is permanently repeating that is very critical for us.
ServerSession(929808)--Connection(5625701)--SELECT LOBBODY, ID, LABEL, FK_OBJECT_ID, FK_OBJECTTYPE FROM NOTE WHERE (ID = 80020)
INTERNAL EXCEPTION STACK:
java.lang.NullPointerException
at oracle.sql.LobPlsqlUtil.plsql_length(LobPlsqlUtil.java:936)
at oracle.sql.LobPlsqlUtil.plsql_length(LobPlsqlUtil.java:102)
at oracle.jdbc.dbaccess.DBAccess.lobLength(DBAccess.java:709)
at oracle.sql.LobDBAccessImpl.length(LobDBAccessImpl.java:58)
at oracle.sql.BLOB.length(BLOB.java:71)
at TOPLink.Private.Helper.ConversionManager.convertObjectToByteArray(ConversionManager.java:309)
at TOPLink.Private.Helper.ConversionManager.convertObject(ConversionManager.java:166)
at TOPLink.Private.DatabaseAccess.DatabasePlatform.convertObject(DatabasePlatform.java:594)
at TOPLink.Public.Mappings.SerializedObjectMapping.getAttributeValue(SerializedObjectMapping.java:43)
at TOPLink.Public.Mappings.DirectToFieldMapping.valueFromRow(DirectToFieldMapping.java:490)
at TOPLink.Public.Mappings.DatabaseMapping.readFromRowIntoObject(DatabaseMapping.java:808)
at TOPLink.Private.Descriptors.ObjectBuilder.buildAttributesIntoObject(ObjectBuilder.java:173)
at TOPLink.Private.Descriptors.ObjectBuilder.buildObject(ObjectBuilder.java:325)
at TOPLink.Private.Descriptors.ObjectBuilder.buildObjectsInto(ObjectBuilder.java:373)
at TOPLink.Public.QueryFramework.ReadAllQuery.execute(ReadAllQuery.java:366)
at TOPLink.Public.QueryFramework.DatabaseQuery.execute(DatabaseQuery.java:406)
I have started the application with Oracle JDBC logging on and found that the problem may originate in a possible lack of syncronization in the pooled connection implementation:
DRVR FUNC OracleConnection.isClosed() returned false
DRVR OPER OracleConnection.close()
DRVR FUNC OracleConnection.prepareCall(sql)
DRVR DBG1 SQL: "begin ? := dbms_lob.getLength (?); end;"
DRVR FUNC DBError.throwSqlException(errNum=73, obj=null)
DRVR FUNC DBError.findMessage(errNum=73, obj=null)
DRVR FUNC DBError.throwSqlException(reason="Logical handle no longer valid",
SQLState=null, vendorCode=17073)
DRVR OPER OracleConnection.close()
so the prepareCall() is issued against an already closed connection and the
call fails.
I assume we have been using a JDBC 2.0 compliant driver. We tried out
drivers that Oracle supplies for 8.1.6, 8.1.7 versions. To be true I
couldn't find any information about the JDBC specification they conform to. Does it
mean that these drivers may not be 100%-compatible with JDBC 2.0 Spec?
How can I find out if they are 2.0 compliant?
Also I have downloaded Oracle 9.2.0.1 JDBC drivers. This seemed to work
fine until we found another incompatibility which made us return back to
8.1.7 driver:
UnitOfWork(7818028)--Connection(4434104)--INSERT INTO STATUSHISTORY (CHANGEDATE, FK_SET_STATUS_ID) VALUES ({ts '2002-10-17 16:46:54.529'}, 2)
INTERNAL EXCEPTION STACK:
java.sql.SQLException: ORA-00904: invalid column name
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:573)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1891)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:1093
at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.jav
a:2047)
at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java
:1940)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatemen
t.java:2709)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePrepare
dStatement.java:589)
at TOPLink.Private.DatabaseAccess.DatabaseAccessor.executeDirectNoSelect(
DatabaseAccessor.java:906)
at TOPLink.Private.DatabaseAccess.DatabaseAccessor.executeNoSelect(Databa
seAccessor.java:960)
at TOPLink.Private.DatabaseAccess.DatabaseAccessor.executeCall(DatabaseAc
cessor.java:819)
at TOPLink.Public.PublicInterface.UnitOfWork.executeCall(UnitOfWork.java:

Hello Yury,
I believe the problem is that TopLink's ServerSession by default executes read queries concurrently on the same connection. It does this to reduce the number of required connections for the read connection pool. Normally this is a good concurrency optimization, however some JDBC drivers have issues when this is done. I had thought that with Oracle JDBC 8.1.7 this issue no longer occurred, but perhaps it is only after version 9. I believe that the errors were only with the thin JDBC driver, not the OCI, so using the OCI driver should also resolve the problem. Using RAW instead of BLOB would also work.
You can configure TopLink to resolve this problem through using exclusive read connection pooling.
Example:
serverSession.useExclusiveReadConnectionPool(int minNumerOfConnections, int maxNumerOfConnections);
This will ensure that TopLink does not to try to concurrently execute read queries on the same connection.
I'm not exactly sure what your second problem with the 9.x JDBC drivers is. From the SQL and stack trace it would seem that the driver does not like the JDBC timestamp syntax. You can have TopLink print timestamp in Oracle's native SQL format to resolve this problem.
Example:
serverSessoin.getLogin().useNativeSQL();
Make sure you configure your server session before you login, or if using the TopLink Session Manager perform the customizations through a SessionEventListener-preLogin event.

Problem building a trigger using a BLOB field in Oracle 10

My case is the following,
I'm trying to implement an AFTER trigger which uses the :new.blob_field to insert the new value in a table. Because of the documented AFTER restriction and :new use for blob fields, I've though to add other BEFORE trigger that calls a procedure in which I can store the :new value and later insert the temporary value in the table when the AFTER trigger is executed.
The Idea is the following:
BEFORE trigger :new -> TEMP
and then
AFTER trigger uses TEMP to store in the new table
So, the final questions are the following:
-Any other idea to do the same, that is, to use the ":new" value in an AFTER trigger?
-How can I do this with the temp variable, is this correct?:
PROCEDURE store_blob ( new_val BLOB ) IS
BEGIN
DBMS_LOB.CREATETEMPORARY(new_blob_temp,TRUE, DBMS_LOB.SESSION);
-- fill with data
DBMS_LOB.COPY (new_blob_temp,new_val,DBMS_LOB.GETLENGTH(new_val),1,1);
END store_blob ;
Because of the design of the application I have to use the AFTER trigger to store the new value so I must find a solution for this type of fields.
Sorry for the size of the text and also for my english.
Thanks in advance

SQL> create or replace trigger trg1 after insert on test_blob for each row
2 begin
3 insert into test_blob2 values (:new.a);
4 end;
5 /
Trigger created.
SQL> insert into test_blob values ('123456789');
1 row created.
SQL> desc test_blob;
Name                                      Null?    Type
A                                                  BLOB
SQL> desc test_blob2
Name                                      Null?    Type
A                                                  BLOB
SQL>
SQL> select dbms_lob.getlength(a) from test_blob2;
DBMS_LOB.GETLENGTH(A)
                    5

Problem with Pro*C reading BLOB field from Oracle 10g

Hello Experts,
We have a Pro*c application which is reading the BLOB data fields (a PNG image file) from Oracle data base. It holds the BLOB fields returned from the SQL query into a Unsigned Char structure in Pro*C. The program used work fine on AIX 32 – bit 4.3 and Oracle 8.1 environment.
Recently, we have upgraded the environment to AIX 64-bit 5.3 and Oracle 10g.Since after the Pro*c program has problem in reading the Blob filed.
Below is the query we are trying to execute –
EXEC SQL
SELECT
signtre_image, image_file_name_ext
INTO
:msipLocalImage INDICATOR :msipLocalImage_i,
:file_name_ext INDICATOR :file_name_ext_i
FROM
dcs_sign
WHERE
signtre_nbr = :signtre_nbr;
Here signtre_image is the BLOB fields and msipLocalImage is a Pro*C structure define as below –
typedef struct tagSignImage
long len; /* Image length */
unsigned char img[1]; /* Pointer to first byte. */
} MOTS_SIGN_IMAGE;
The quesry does not give any error or exception message in the Pro*C , program just stops at the point of executing the quesry..When we run the query commenting the BLOB filed it works fine. Also, the query runs good when we run it in the Oracle editor.
There seems to be problem with the way we are reading the BLOB field in the new Oracle 10g enviromet.
Does any body have any idea what’s wrong with this query? We really need it to work.
Any Help will be greatly appreciated.
Thanks,
- Rajan Yadav

Thanks a ton for your response.
We made the necessary changes as suggested by you.This time we got another flavour of error - SQL Error Code - Inconsistent error while reading BLOB.
Another thing we noticed is that the data field which we are trying to read is defined as LONG RAW instead of a BLOB in data base.
Are these two things related in any sense or is there anything else which is causing the error.
Once again Thanks for your help.
- Rajan Yadav

Access BLOB field in Oracle database

Dear Sir,
I am using Pro* C to access oracle blob fields
I write "12345" to Oracle Blob field, when I read it it is fine.
I then modify this record to "ABC", when I read it, I get "ABC45",
How can I set blob field to the initial state to modify BLOB field correctly ?
Many Thanks
Liang

Initially you write 12345 and when you modify you are modiyfing only 3 bytes from offset 1 and hence the results. When you modify oracle will not erase the complete lob you need to use erase before you modify (write)
Following doc give you an insight into pl/sql lob functions
http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28419/d_lob.htm#sthref4428
Following is the Pro*C Lobs Guide
http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28427/pc_16lob.htm#i998068

Upload an .doc attachment into a blob field in Oracle

sir i have to upload a .doc file into a blob field in the oracle database.
help with any code, or code links
The code i am having,pls suggest if any changes...
String QUERY_ENHANCEMENT = "INSERT INTO EKMIS_ENHANCEMENT(USER_ID,ENH_TYPE,MODULE,DESCRIPTION,ATTACHMENT)";
     QUERY_ENHANCEMENT = QUERY_ENHANCEMENT+"VALUES(?,?,?,?,?)";
          PreparedStatement preparedStatement = connection.prepareStatement(QUERY_ENHANCEMENT);
     preparedStatement.setString(1, enhancementTO.getUserid());
     preparedStatement.setString(2, enhancementTO.getType());
     preparedStatement.setString(3, enhancementTO.getModule());
     preparedStatement.setString(4, enhancementTO.getDescription());
     try
          File anyFile = new File(enhancementTO.getPath());
          InputStream is = new FileInputStream(anyFile);
          preparedStatement.setBinaryStream( 5, is, (int)(anyFile.length()));
     catch(FileNotFoundException fnfe)
          System.out.println("Exception while archiving to BLOB/CLOB");
          fnfe.printStackTrace();
     return preparedStatement;

the html form is like this..
<table width="780" cellpadding="2" cellspacing="0" border="0">
               <tr>
                    <td colspan="6" class="SectionHeader">USER COMMENTS/SUGGESTIONS/COMPLAINTS</td>
               </tr>
               <tr>
                                   <td height="18" class="boldLabel_RA">
                                        User Id
                                   </td>
                                   <td height="18" class="value_LA">
                                        <input name="userId" type="text" class="big" readonly="true" value="{sessionAttributes/ekmis.UserID}"/>
                                   </td>
                                   <td height="18" class="boldLabel_RA">
                                        User Name
                                   </td>
                                   <td height="18" class="value_LA">
                                        <input name="userName" type="text" class="big" readonly="true" value="{sessionAttributes/ekmis.UserName}"/>
                                   </td>
                                   <td height="18" class="boldLabel_RA">
                                        Select Type
                                   </td>
                                   <td height="18" class="value_LA">
                                        <select class="big" name="type">
                                             <option value="0"/>
                                             <option value="E">Enhancement</option>
                                             <option value="S">Suggestion</option>
                                             <option value="B">Bug</option>
                                        </select>
                                   </td>
                              </tr>
               <tr>
                    <td height="18" class="boldLabel_RA">Select Module</td>
                    <td colspan="5" height="18" class="value_LA">
                         <select name="mod" class="extralong">
                         <option value="0"/>
                              <xsl:call-template name="getModules" >
                                   <xsl:with-param name="modules" select="requestParameters/param[@name='sat']" />
                              </xsl:call-template>
                         </select>
                    </td>
               </tr>
               <tr>
                    <td colspan="6" class="SectionHeader"/>
               </tr>
               <tr>
                    <td height="18" class="boldLabel_RA">Description</td>
                    <td colspan="5" height="18" class="value_LA">
                         <textarea name="description" class="big"/>
                    </td>
               </tr>
               <tr>
                    <td height="18" class="boldLabel_RA">Add Attachment</td>
                    <td colspan="5" height="18" class="value_LA">
                         <input name="path" type="file" class="big"/>
                    </td>
               </tr>
          </table>

How can i store image into blob field in oracle express ??

Hi
am using oracle express *(2.1)* , i am devloping a small system , we have to store an image in blob filed in a table, we have to create a form which allow the user to store the image in the table and to generate a report contains the image
any note's please
tahnk's in advance
sam
Edited by: user485341 on Dec 22, 2008 1:28 AM

hi Andy
this is the code for download
create or replace PROCEDURE download_my_file(p_file in number) AS
v_mime VARCHAR2(48);
v_length NUMBER;
v_file_name VARCHAR2(2000);
Lob_loc BLOB;
BEGIN
SELECT MIME_TYPE, BLOB_CONTENT, FILE_NAME,DBMS_LOB.GETLENGTH(BLOB_CONTENT)
INTO v_mime,lob_loc,v_file_name,v_length
FROM A_IMAGES
WHERE IMAGE_ID = p_file;
owa_util.mime_header( nvl(v_mime,'application/octet'),FALSE );
-- set the size so the browser knows how much to download
htp.p('Content-length: ' || v_length);
-- the filename will be used by the browser if the users does a save as
htp.p('Content-Disposition: attachment;
filename="'||replace(replace(substr(v_file_name,instr(v_file_name,'/')+1)
,chr(10),null),chr(13),null)|| '"');
-- close the headers
owa_util.http_header_close;
-- download the BLOB
wpg_docload.download_file( Lob_loc );
end download_my_file;
thank's

How can i use a blob field in a formula field object

Hi ,
We are using Crystal Report Server XI R2. i have a field "ANSWER" in my datasource which stores value 1 or 0.
And i have table to store two images as blob fields are "EVALTICKIMAGE" and "EVALCROSSIMAGE".
Now i need to show an image in my report for the field "ANSWER" instead of 0 or 1.
So i written a formula to achieve this. my formula text is follows:-
oFormulaField.Text = @"if {CSP_PROCESS_REPORT.ANSWER} = ""1"" then {EVALIMAGE.EVALTICKIMAGE} else {EVALIMAGE.EVALCROSSIMAGE} ";
but this does not works for me. i recieve an error "A blob field cannot be used in a formula".
is there any other way to show images based on a condition.
or is that possible to use blob fields formulafield, kindly help me.
Thanks,
Padmanaban V

You can use conditional suppression instead.
Place both image fields on the report. Right click the 1st image field (EVALIMAGE.EVALTICKIMAGE) and choose Format Graphic and make sure the Format Editor is on the Common Tab.
Click the x-2 button across from Suppress and enter the following formula:
IF({CSP_PROCESS_REPORT.ANSWER} = 1 THEN FALSE ELSE TRUE
For EVALIMAGE.EVALCROSSIMAGE, do the same thing except change the formula to:
IF({CSP_PROCESS_REPORT.ANSWER} = 0 THEN FALSE ELSE TRUE
Once that's done, you can set one image directly on top of the other.
HTH,
Jason

How to upload size 4k file to oracle BLOB field

hi all, i'm using Oracle 9i, Orcale JDBC thin Driver and ibm websphere to develop a java application.i have used java EJB/CMP to insert images into BLOB field in oracle.
i used byte[] mapping to BLOB.i did it successfully.
however, i'm facing another problem. it is that
when i insert files larger than 4k, there is exception error. it said that the inserted value is too large.
is that the problem of orcale JDBC?
is that any solution to solve this restriction?
it is very urgent, pls help!
thx a lot

Hi Lee
Thanks for ur valuable suggestions. Please give me
more idea i would really thank to u !Which part is giving you troubles?
Oh - and change my suggestion to use setBinaryStream to a suggestion to use setAsciiStream, as I missed the part where you said "text file".
>
Can anybody tell me anyother way how to solv thid
problem
Depending on the size of the text file you could just read the file so you have the contents as a String and use setString (also in the PreparedStatement interface).
hanks
Message was edited by:
MerlinRosina

Shrinking BLOB tablespace in Oracle 10g

Hello,
I have table created with 32 GB in Oracle 10g with BLOB field containing images. after that I have deleted some of the images from the table but when I'm checking free space, it is show full 32 GB. But when I'm looking at Toad it shows me out of 32 GB 17 GB is free.
my question is how to shrink/resize blob tablespace/table having BLOB field in oracle 10g 2rel ?

Hello urgent,
Tablespace management is not really an Oracle Spatial topic, I suppose these are georaster images?. You probably want to search and post in the more general database forums.
The quick answer is that it is not easy. Oracle tablespaces may only be "shrunk" if the free space is at the end of the datafile at the "high water" mark. If by some wild coincidence the images you removed were indeed at the back of the datafile, then you could alter the datafile with a RESIZE command. But the odds of that being the case are incredibly low. If you really, really MUST recover that space then about the only thing to do is export the data, delete it from the tablespace, shrink the tablespace and then import the data back in. Another approach if you have the space is just move the data into another empty tablespace and then drop the original tablespace. I would guess that the salary expended for you to take everything offline and do this would be more than just buying another cheap disk. Considering that in doing your daily work you may well indeed be in this position again in a few weeks, then it makes even less sense.
Now having said all that I have been in the situation where I MUST recover that space without taking everything offline.
One thing you can try is to "pop" the last items off the datafile (moving them to another tablespace) identified using the query below. But this is an exercise in futility unless your resources happen to be nicely "chunked" together near the highwater mark. Oracle tends to stripe resources across the available space in the datafile. So you might find you need to move half the contents before recovering any significant amount of space.
Cheers,
Paul
   SELECT '
   a.owner, '
   a.segment_name, '
   a.segment_type, '
   a.block_id, '
   a.tablespace_name '
   FROM '
   dba_extents a '
   WHERE '
   a.file_id = ( '
      SELECT '
      b.file_id '
      FROM '
      dba_data_files b '
      WHERE '
      b.file_name = :p1 '
   ORDER BY '
   a.block_id DESC

Read a file store in a Blob field

hi friends
has anyone read a file in a table field like using blob
fieldtype in Oracle.anybody got the java code to do it. please
help.
thanks,
aruni.

See item #2 in my reply #11 at your original post (see link shown below):
http://forum.java.sun.com/thread.jsp?thread=425174&forum=48&message=1893475
and my reply #13 which contains a link to more info on how to read/write Oracle LOB.
;o)
V.V.

Display image from BLOB field (png image)

Hello,
On my database i have a function which return BLOB (png image from a webservice)..
Is there some tutorial or sample code how to display a image froma blob field in oracle reports?
thank you

You can create a view and base your report on that view. The view would be something like:
create or replace view my_view as
select my_blob_function() image
from ...In your Report it would just be:
select image
from my_viewNow, I'm not sure if Reports supports png format, though.
There are many examples to be found, e.g.
http://download.oracle.com/docs/html/B10602_01/orbr_dyngraph.htm

Using Blobs - possible performance issues

Hello,
We are considering using BLOBs in our Oracle 9i database( supposed to be migrated to 10g soon)
Here is the scenario
·     20 000 BLOB/year keeping during 5 years
·     100 inserts per day
·     200 reads per day
·     Maximum BLOB size is 150 Kb
What will be performance impact of using Blobs on INSERT/SELECT ?
Would it be better to separate BLOBs on the different tablespace ?
Thanks in advance
Alexander

Hello,
We are considering using BLOBs in our Oracle 9i
database( supposed to be migrated to 10g soon)
Here is the scenario
·     20 000 BLOB/year keeping during 5 years
·     100 inserts per day
·     200 reads per day
·     Maximum BLOB size is 150 Kb
What will be performance impact of using Blobs on
INSERT/SELECT ?Are these stored in the tables or outside the tables using locators?
Would it be better to separate BLOBs on the different
tablespace ?
Yes. It is better to store on different Tablespace.

Report not showing my image in BLOB field

Hi,
I m using report 6i.
But I just upgraded my server from Oracle 8.0 to 9i and now that I have a new table with image, I created the field to be a BLOB field.
However, in old days, I uses LongRaw and I save my images using the following:-
READ_IMAGE_FILE(filename, 'BMP', 'logos.logo')
it works perfectly when I call the file outfrom my report but now, after I changed to BLOB, I use the report to open the BLOB field and stated it as image, it shows error stating that the report cannot identify the image.
Any advice on this please?
Thankz

Develop a simple form including the BLOB field and set the properties of the image item accordingly.
See help in forms 9i for details & examples.
Use read_image_file built-in to read the image from the file to the BLOB item of this form.
In the report, you set the properties of the BLOB field as in my previous reply. Run the report. That's all!
In the reports developer, I don't think you can use read_image_file built in.

Show photoes using blob field in Oracle DB

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