String search in BLOB column

Hi All!
I have a table that contains text files in a BLOB column. I want to search for an 'input string' in all the text files in the column and replace it with 'replace string'. Is it possible to do this? And if so, how? Please suggest.
Thanking in advance.
Regards,
Deepika.

If the BLOB is smaller than 32767 in length, you can simply:
DECLARE
   p_blob   BLOB := UTL_RAW.cast_to_raw (RPAD ('X', 32767));
BEGIN
   p_blob :=
      UTL_RAW.cast_to_raw (REPLACE (UTL_RAW.cast_to_varchar2 (p_blob),
                                    'X',
                                    'Y'
END;

Similar Messages

Inserting String data to BLOB column

Hi All
I want to insert String data into BLOB column using DBAdapter - through database procedure.
anybody can help?
Regards
Albin Issac

I have used utl_raw.cast_to_raw('this is only a test')).But for bigger string I get the error as "string literal too long" do we have any similar function for longer string.
Thanks,
-R

String search in multiple columns of a table

Hi,
I have a requirement in which i want to search a particular string say 'ABC' in columns col1,col2,col3 of table tab1. If the string is there in either of these columns i need to pick up that row.
Currently i am using 'INSTR' ,'OR' clauses to achieve this.
But it is taking long time to execute.
Can anybody suggest me an alternative for this which will give me better execution time.

user12288167 wrote:
Hi,
I have a requirement in which i want to search a particular string say 'ABC' in columns col1,col2,col3 of table tab1. If the string is there in either of these columns i need to pick up that row.
Currently i am using 'INSTR' ,'OR' clauses to achieve this.
But it is taking long time to execute.
Can anybody suggest me an alternative for this which will give me better execution time.Not I.

Full text search in BLOB columns NOT Working

Hi, I am using Oracle 9i.
Presently I use following code to create index.
begin
Ctx_Ddl.Drop_Preference ('text_only');
end;
begin
Ctx_Ddl.Create_Preference ( 'text_only', 'basic_lexer');
Ctx_Ddl.Set_Attribute ( 'text_only', 'index_text', 'true' );
Ctx_Ddl.Set_Attribute ( 'text_only', 'index_themes', 'false' );
end;
CREATE TABLE MY_XML_DOCS(
XML_RES_ID NUMBER (16) NOT NULL,
XML_RES BLOB NOT NULL,
XML_RES_PATH VARCHAR2 (128),
XML_DOCS_CREATED_BY VARCHAR2 (16) NOT NULL,
XML_DOCS_CREATED_DT DATE NOT NULL,
XML_DOCS_MODIFIED_BY VARCHAR2 (16),
XML_DOCS_MODIFIED_DT DATE ) ;
drop index FULL_TEXT_INDEX ;
create INDEX FULL_TEXT_INDEX ON MY_XML_DOCS(XML_RES)
INDEXTYPE IS ctxsys.CONTEXT
parameters ('lexer text_only stoplist ctxsys.empty_stoplist');
BEGIN
CTX_DDL.sync_index('FULL_TEXT_INDEX ','10M');
END;
And I've some XML documents stored in blob columns in the above table. But my query with 'contains' param does not return expected results.(it presently returns no results). Do I miss anything? Do I need to specify any thing else while I create the Index? Kindly advice.

I would agree the CLOB storage would be preferable for XML. If you are using BLOB storage, by default the documents are going to be FILTERed by the INSO_FILTERS. A BLOB column will give you reduced storage in a unicode environment though.
If you wish to store your data in a BLOB though, you should specify the NULL_FILTER in your create index statement to avoid having the INSO_FILTERS invoked.
Further, you may also require a CHARSET column in your table specifying the character set of your data for each row if it can vary. The Column should then also be specified in the 'PARAMETERS' clause of the create index statement, this way Oracle knows the correct character set to use when converting the binary data to character data.
My guess that you are not getting any query results because none of the documents are actually being indexed. Be sure to query the ctx_user_index_errors view to determine if you are getting errors at indexing time.

How to serch a character string in a BLOB (case insensitive)

Hi
Could somebody help me with this please.
I need to search for the existance of a character string in a BLOB column of a table.
I can do it in the below way.
PROCEDURE search (in_search VARCHAR2) IS
lob_doc BLOB;
Pattern VARCHAR2(30);
Position INTEGER := 0;
Offset INTEGER := 1;
Occurrence INTEGER := 1;
BEGIN
Pattern := utl_raw.cast_to_raw(in_search);
SELECT BLOB_CONTENT INTO lob_doc
FROM documents WHERE ein = '702265981';
DBMS_LOB.OPEN (lob_doc, DBMS_LOB.LOB_READONLY);
Position := DBMS_LOB.INSTR(lob_doc, Pattern, Offset, Occurrence);
IF Position = 0 THEN
DBMS_OUTPUT.PUT_LINE('Pattern not found');
ELSE
DBMS_OUTPUT.PUT_LINE('The pattern occurs at '|| position);
END IF;
DBMS_LOB.CLOSE (lob_doc);
END search;
But the problem is, it does a case sensitive search.
I need a case-insensitive search
Thanks in Advance

The best way would be to use Oracle Text.
However, if you want a quick and dirty solution, I would convert to CLOB, and (assuming 9i) you can use LOWER on the CLOB.
Click on this link for a blob_to_clob function.
Re: BLOB to CLOB?

How to store a PDF in a BLOB column, then select/search it using SQL?

We have a simple requirement.
(1.) We have an Oracle 10g DB.
(2.) We want to store PDFs/MS Word docs inside BLOB column in a table.
(3.) We need to show PDF/MS Word content to the user, without opening the PDFs/MS World like we normally do (i.e. Using PDV reader/ MS Word).
(4.) i.e. We need to use SQL statements and
(a.) Get all contents of the PDF/MS WORD doc.
(b.) Search for specific strings inside these docs in the BLOB columns.How to do this pls? Code sample would be really great.
Edited by: user12240205 on Jul 18, 2012 9:35 PM
Edited by: user12240205 on Jul 18, 2012 9:37 PM

rp0428 wrote:
>
We have a simple requirement.
>
Really? You mean as opposed to a requirement that might actually be doable?Could be that simple is used as in stupid ? Like in, "+look at this simply idiotic requirement, blah.. blah...+"? ;-)
@user12240205:
BLOBs contains binary data. Not text data. How do you propose to search binary data for strings?
PDF and Word formats include actual text strings and identifiers as part of the formatting. How do you propose that this be identified and ignored when searching for specific strings in the document's content?
PL/SQL does not have the ability to take a page from a PDF/Word document, highlight the search string, and display that to the client. A format-parser is needed to parse the PDF/Word format and generate that as content (e.g. HTML or XML) that can be rendered by a client. How do you propose PL/SQL serves up search strings that it found, when it cannot interpret the document format? (cannot even say what page, section or paragraph, that search string occurs)
Documents can be loaded via the DBMS_LOB interface. Either from the db server's file system, or by the client supplying the document as chunks for "write appending" to a BLOB. See Oracle® Database PL/SQL Packages and Types Reference guide for details.
Text search and document indexing are supported by an Oracle feature called Content Management<a> (which includes interMedia, UltraSearch, Oracle Text, etc).
Oracle also supports (on Window server platforms), the Microsoft Component Object Model (COM). COM interfaces (such as COM for Word) can be used for specialised processing (e.g. searching Word documents). Oracle's COM feature allows one to interface directly with external s/w (e.g. MS Word) via its COM interface.

Need to create link to Word Doc in blob column in search results report

I got the Oracle Text boolean search of word documents in a blob column of a table working.
Now I need to be able to create a link in the results report.
I know that Oracle creates a link for each document in the column when you attach a file, I just need to know what the link should be to allow users to open the document in the search results report.
Right now the application is set to do a search in the attached word documents, and in the results window it shows the names of the people who match the search, but it won't allow me to create a link to their resume in the results report.
the name of the table is CONTRACTOR_LIST and the blob column is RESUME.
How would you go about creating a simple link to the word file in the results window?
Here is the code for the query
select score(1) relevance, Name, Resume
from contractor_list
where CONTAINS (resume, :P1_SEARCH, 1) > 0
order by 1 desc
That works, but I can't get it to link to the resume file.
Here is the code I'm using for the link
javascript:popupURL("#RESUMEL#")
This just give me an error page and the the link is
http://server-namer:8080/apex/[datatype]
the error is
Bad Request
The HTTP client sent a request that this server could not understand.
Thanks again!
Edited by: gjones77 on Dec 2, 2008 6:14 AM
Edited by: gjones77 on Dec 2, 2008 7:08 AM

It is within the table I believe (I'm not a DBA or a developer) since I created a BLOB column and then used the file browse feature to allow users to attach a resume to the table in order to be able to perform a search of the attached documents.
I'm just having a hard time pointing the link in the search results report to the document in the blob column.
The information on that page is great if you're trying to create a link to the document on the initial report.
But I created a query using Oracle Text to run a report that does a boolean search of the attached word documents in the table.
When it displays the search results, it doesn't create a link to the document and I can't figure out how to do it.
Here's a link the the instructions I used to create the initial search report with Oracle Text, mind you I only created the index and query, I didn't add in all the link data since they're using documents on websites and I'm using documents in a table.
http://www.oracle.com/technology/products/database/application_express/pdf/apex_text_application_v1.6.pdf
If you can help me with this I'd really appreciate it.
Thanks again.
Greg
Edited by: gjones77 on Dec 2, 2008 8:14 AM

Search a text in a multiple tables and one table has BLOB column

Hi,
I couldn't find a solution/examples for below scenario in oracle text documentation or related forums.
I need to search a text in a multiple tables,in that one table has blob column which is used to store the documnents(pdf,doc,jpg..etc) and other tables have varchar2 columns,These tables have realation each other.
Please provide a sample examples for above scenario.
Thanks in advance..

Have a look at my blog entry here:
https://blogs.oracle.com/searchtech/entry/indexing_data_from_multiple_tables
That describes two methods of achieving what you are looking for.

Select-String to search only first column in .CSV

Hello all,
I'm wondering if anyone knows a way to only search the first column of a .CSV file using Select-String. I guess I could probably import-csv and pipe the first column to select-string, but I was wondering if Select-string has this capability within itself?

Yes, a "large file that I only need a few lines from" is more the issue. And I was also just curious if Select-String had such functionality. For the file I am reading, it has over 23,000 lines (13MB), and there is a significant
performance increase with using select-string (over %4000 increase) :
Using Import-CSV and Where-Object: around 5.938 seconds
Using Select-String: around 0.138 seconds
Thus, if I have several strings that I want to search the file for, I would prefer to use Select-String. I suppose I could just do the following?
1. Use Select-string to search the file for each string I need to search for
2. Once I'm done searching for all strings, I can query the resultant data set to be sure the string is in the first column of each record in the dataset
3. If the string is not in the first column in the resultant data set, I can just remove the record.
Am I way off base here?

BLOB column says undefined

Hi .
when i create a BLOB column in the table and describe the structure it says undefined. how do i fix that. also if someone can let me know how to update a RTF content from a VB to the BLOB column in the oracle table?? Tons of thanks in advance

You can write a BLOB- VB to Oracle database using ADO function in VB. Search in MSDN for help on BLOB function. They have a ready eg.
Just in case you don't find it.
Here it is:
Just copy paste this in a form with text boxes for all ODBC parameters.
I think you cannot read directly from a BLOB column. Don't forget to initiate a BLOB column like:
/*LOB table for storing files*/
Drop table FileColumn;
Create table FileColumn
( REPQUE_ID NUMBER(10) NOT NULL ,
RepText_blob BLOB default empty_blob()
Storage (initial 50K next 50K pctincrease 0)
tablespace TEST31ORA
lob(RepText_blob) store as
(tablespace ACCOUNT4
Storage (initial 100k next 100k pctincrease 0)
chunk 16k pctversion 10 nocache logging);
/*initialize LOB locator by making it not null, use empty lob, this will
insert the locator value in that column
I did this initialize in create table script, so that I can do the bulk insert
One can do bulk inserts if there are no rows before
insert into FileColumn
values(1, empty_blob()); */
Option Explicit
Const BlockSize = 32768
' FUNCTION: ReadBLOB()
' PURPOSE:
' Reads a BLOB from a disk file and stores the contents in the
' specified table and field.
' PREREQUISITES:
' The specified table with the OLE object field to contain the
' binary data must be opened in Visual Basic code (Access Basic
' code in Microsoft Access 2.0 and earlier) and the correct record
' navigated to prior to calling the ReadBLOB() function.
' ARGUMENTS:
' Source - The path and filename of the binary information
' to be read and stored.
' T - The table object to store the data in.
' Field - The OLE object field in table T to store the data in.
' RETURN:
' The number of bytes read from the Source file.
Function ReadBLOB(Source As String, T As Recordset, _
sField As String)
Dim NumBlocks As Integer, SourceFile As Integer, i As Integer
Dim FileLength As Long, LeftOver As Long
Dim FileData As String
Dim RetVal As Variant
On Error GoTo Err_ReadBLOB
' Open the source file.
SourceFile = FreeFile
Source = "c:\blob_file_folder\G63JR557.doc"
T = mwebRepOutput
sField = RepOut_Content
Open Source For Binary Access Read As SourceFile
' Get the length of the file.
FileLength = LOF(SourceFile)
If FileLength = 0 Then
ReadBLOB = 0
Exit Function
End If
' Calculate the number of blocks to read and leftover bytes.
NumBlocks = FileLength \ BlockSize
LeftOver = FileLength Mod BlockSize
' SysCmd is used to manipulate status bar meter.
RetVal = SysCmd(acSysCmdInitMeter, "Reading BLOB", _
FileLength \ 1000)
' Put first record in edit mode.
T.MoveFirst
T.Edit
' Read the leftover data, writing it to the table.
FileData = String$(LeftOver, 32)
Get SourceFile, , FileData
T(sField).AppendChunk (FileData)
RetVal = SysCmd(acSysCmdUpdateMeter, LeftOver / 1000)
' Read the remaining blocks of data, writing them to the table.
FileData = String$(BlockSize, 32)
For i = 1 To NumBlocks
Get SourceFile, , FileData
T(sField).AppendChunk (FileData)
RetVal = SysCmd(acSysCmdUpdateMeter, BlockSize * i / 1000)
Next i
' Update the record and terminate function.
T.Update
RetVal = SysCmd(acSysCmdRemoveMeter)
Close SourceFile
ReadBLOB = FileLength
Exit Function
Err_ReadBLOB:
ReadBLOB = -Err
Exit Function
End Function
null

Apex 4.0 display image item :BLOB column returned by SQL statement

Hello
I'm creating an display image item in apex 4.0. The source is a BLOB column returned by SQL statement.
When I'm issuing an sql statement like this:
   select lado.blob_content
   from   large_documents      lado
   ,        large_doc_headers    ladh
   where lado.ladh_nr = ladh.nr
   more criteriait works fine.
When I create a function inside a package with the same query (in a cursor)
function get_image(some parameters in) return blob
Following in apex by:
select get_image(some parameters) from dualI get a
ORA-06502: PL/SQL: numeric or value error: character string buffer too smallAnybody any idea why this does not work?
Regards Erik

Hi Eric,
the environment assumes varchar2-output by default, which will be limited to 32767 characters and may have problems with binary formats. You could define a blob-variable to select the value into.
DECLARE
l_blob BLOB;
BEGIN
SELECT get_image(some parameters)
    INTO l_blob
    FROM dual;
END;
/If you expect the BLOB-Content to be text (you should consider CLOB then), you may use UTL_RAW.CAST_TO_VARCHAR2 to convert the content. If your object is larger than the maximum varchar2 size, or you want to convert BLOB to CLOB, you might be interested in some converter like described here: {message:id=559749}
Hope this is what you were searching for.
-Udo

Searching in blob field

hi
i m facing a problem when i m selecting a query form a table that has a blob field .
for eg
select fields from table where table.name like '%string%'
here table.name name is a blob column and string is any string.
i m using apache derby.
when i m executing this query nothing is returned.
can any one suggest me
thanks

I don't know about Derby, but blobs aren't a character data type and so it's not surprising to me that a string search isn't supported.
It might work with clobs; some databases support that and some don't.

Getting errors while writing to a BLOB column using PrepareStatement

Hello,
I am getting the following errors when I am trying to insert in a BLOB in the oracle 9i database:
java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1 ORA-06502: PL/SQL: numeric or value error ORA-06512: at line 205 ORA-22297: warning: Open LOBs exist at transaction commit time
It gets inserted into the BLOB column correctly even after throwing exception.I am using the following code:
String outputXML = outputXML //Some huge string having a length of 52k
String pKey = "DATA-WORKATTACH-URL MELLONFINCORP-GSS-CPG E-444!20061130T211932.030 GMT";
String createDateTime = "20061212T145931.448 GMT";
String createOpName = "Haque, Nadeem";
String createOperator = "ADCDTB6";
String createSystemID = "WFE";
String insName = "TESt INS";
String objClass = "Data-WorkAttach-Note";
String updateDateTime = "20061207T191900.510 GMT";
String updateOpName = "Haque, Nadeem";
String updateOperator = "ADCDTB6";
String updateSystemID = "WFE";
String label = "This is a test for label";
String attachDate = "20061207T191900.510 GMT";
String attachedBy = "Nadeem";
String attachName = "Nadeem Haque";
String note = "This is a test note";
String refObjectKey = "E-438!20061130T211932.030";
String replicationDate = "20061207T191900.510 GMT";
try{
java.sql.PreparedStatement pstmt = null;
java.sql.Statement stmt = null;
java.io.OutputStream tempBlobOStream = null;
oracle.sql.BLOB tempBlob = null;
javax.naming.Context ctx = new javax.naming.InitialContext();
tools.findPage("tempWorkPage").putString ("testctx", ctx.toString());
javax.sql.DataSource ds = (javax.sql.DataSource)ctx.lookup("jdbc/gswWorkflowReportingData");
tools.findPage("tempWorkPage").putString ("testds", ds.toString());
java.sql.Connection conn = ds.getConnection();
tools.findPage("tempWorkPage").putString ("testconn", conn.toString());
java.sql.ResultSet lobDetails = null;
     try{
          byte [] ba = outputXML.getBytes();
          String query = "INSERT INTO GSW06U.pc_data_workattach(PZINSKEY,PXCREATEDATETIME,ATTACHDATE,PXUPDATEDATETIME,PXCREATEOPNAME,PXCREATEOPERATOR,PXCREATESYSTEMID,PXINSNAME,PXOBJCLASS,PXUPDATEOPNAME,PXUPDATEOPERATOR,PXUPDATESYSTEMID,PYLABEL,ATTACHEDBY,ATTACHNAME,NOTE,REFOBJECTKEY,ATTACHSTREAM) values(?,to_date(concat(substr(?,1,8),substr(?,10,6)),'YYYYMMDDHH24MISS'),to_date(concat(substr(?,1,8),substr(?,10,6)),'YYYYMMDDHH24MISS'),to_date(concat(substr(?,1,8),substr(?,10,6)),'YYYYMMDDHH24MISS'),?,?,?,?,?,?,?,?,?,?,?,?,?,EMPTY_BLOB())";
          tools.findPage("tempWorkPage").putString ("query", query);
          pstmt = conn.prepareStatement(query);
          pstmt.setString(1, pKey); // Bind PZINSKEY
          pstmt.setString(2, createDateTime); // Bind PZINSKEY
          pstmt.setString(3, createDateTime);
          pstmt.setString(4, attachDate);
          pstmt.setString(5, attachDate);
          pstmt.setString(6, updateDateTime);
          pstmt.setString(7, updateDateTime);
          pstmt.setString(8, createOpName);
          pstmt.setString(9, createOperator);
          pstmt.setString(10, createSystemID);
          pstmt.setString(11, insName);
          pstmt.setString(12, objClass);
          pstmt.setString(13, updateOpName);
          pstmt.setString(14, updateOperator);
          pstmt.setString(15, updateSystemID);
          pstmt.setString(16, label);
          pstmt.setString(17, attachedBy);
          pstmt.setString(18, attachName);
          pstmt.setString(19, note);
          pstmt.setString(20, refObjectKey);
          pstmt.execute(); // Execute SQL statement
          // Retrieve the row just inserted, and lock it for insertion of the LOB columns
          stmt = conn.createStatement();
          lobDetails = stmt.executeQuery("SELECT AttachStream FROM GSW06U.pc_data_workattach WHERE PZINSKEY = '" + pKey + "' FOR UPDATE");
          tools.findPage("tempWorkPage").putString ("idvalue", pKey);
          // Retrieve Blob streams for AttachStream column and load the sample XML
          if( lobDetails.next()) {
          //Get the CLOB from the resultset
          tempBlob = (oracle.sql.BLOB)lobDetails.getBlob(1);
          tools.findPage("tempWorkPage").putString ("pos1", "at pos1");
          // Open the temporary CLOB in readwrite mode, to enable writing
          tempBlob.open(oracle.sql.BLOB.MODE_READWRITE);
          tools.findPage("tempWorkPage").putString ("pos2", "at pos2");
          // Get the output stream to write
          tempBlobOStream = tempBlob.getBinaryOutputStream();
          tools.findPage("tempWorkPage").putString ("pos3", "at pos3");
          // Write the data into the temporary CLOB from the byte array
          tempBlobOStream.write(ba);
          // Flush and close the stream
          tempBlobOStream.flush();
          conn.commit();
          //Close everything
tempBlobOStream.close();
          tempBlobOStream = null;
          tempBlob.close();
          tempBlob =null;
          lobDetails.close();
          lobDetails = null;
          stmt.close();
          stmt = null;
          pstmt.close();
          pstmt = null;
          conn.close(); // Return to connection pool
          conn = null; // Make sure we don't close it twice
     catch(java.sql.SQLException sqlexp) {
               tempBlob.freeTemporary();
               sqlexp.printStackTrace();
               tools.findPage("tempWorkPage").putString ("SQLException", sqlexp.toString());
     catch(java.lang.Exception exp) {
               tempBlob.freeTemporary();
               tools.findPage("tempWorkPage").putString ("InnerException", exp.toString());
               exp.printStackTrace();
     finally
          if (lobDetails != null) {
          try { lobDetails.close(); } catch (java.sql.SQLException e) { System.out.println(" Error while Freeing Result sets" + e.toString()); }
          lobDetails = null;
          if (stmt != null) {
          try { stmt.close(); } catch (java.sql.SQLException e) {System.out.println(" Error while Freeing java Statement" + e.toString()); }
          stmt = null;
          if (pstmt != null) {
          try { pstmt.close(); } catch (java.sql.SQLException e) {System.out.println(" Error while Freeing java PrepareStatement" + e.toString()); }
          pstmt = null;
          try{
          if (tempBlob != null) {
     // If the BLOB is open, close it
     if (tempBlob.isOpen()) {
     tempBlob.close();
     // Free the memory used by this BLOB
     tempBlob.freeTemporary();
          tempBlob = null;
          catch (Exception ex) { // Trap errors
          System.out.println(" Error while Freeing LOBs : " + ex.toString());
          if (conn != null) {
          try { conn.close(); } catch (java.sql.SQLException e) { System.out.println(" Error while Freeing Connection" + e.toString()); }
          conn = null;
catch(java.lang.Exception e)
     tools.findPage("tempWorkPage").putString ("LangException", e.toString());
     e.printStackTrace();
}

Hello,
I am getting the following errors when I am trying to
insert in a BLOB in the oracle 9i database:
java.sql.SQLException: ORA-00604: error occurred
at recursive SQL level 1 ORA-06502: PL/SQL: numeric
or value error ORA-06512: at line 205 ORA-22297:
warning: Open LOBs exist at transaction commit
time
You're doing exactly what the error says, that is committing with an open LOB. Look at the following piece of code: you write in the LOB, you flush it and then commit. There is no closing of the LOB stream before committing.
Try putting the tempBlobOStream.close() instruction before the commit.
// Write the data into the temporary CLOB from the
he byte array
          tempBlobOStream.write(ba);
          // Flush and close the stream
          tempBlobOStream.flush();
nn.commit();
          //Close everything
tempBlobOStream.close();

How to open a BLOB column stored in oracle using OLE wrappers

Hello friends
I have a strange problem, I have OLE objects like, *.doc, *.xls, *.bmp etc all these files have been embedded in oracle database using OLE2.0 & wrapping technology. Well I have to extract this data outof BLOB column from Oracle database & store it in OS file in its respective format
For Eg. If the BloB data which has been embedded in Oracle database using OLE2.0 & wrapping is of *.doc file then the OS file which I have stored after extraction I should be able to open in MS word.
Well in this task I am able to extract the file using GETCHUNK feature from VB , but I am not able to open the OS file in MS word as it is saying the error
the document you are trying to open is not supported by MS Word
So please any one of you can help me to solve this problem I wil be very helpful. also if you have suported code for ths problem It is welcome
Not only using VB if you have code of any other langauges also itis welcomed
Thanks
Adhem

Please "Preview" your future posts. Your formatting is awful. Especially learn to use the [ code ] tags.
Are you sure DateTime.Now.ToString() returns a string in the format of 'MM/DD/YYYY HH:MI:SS.FF3'?
Fix that and if you still having the problems, debug the actual result of your string.Format() and post that.

How can I open different binary files from BLOB column ?

If we store some type of binary file (XLS, DOC, PDF, EML and so on, not only pictures) in BLOB column how can I show the different contents? We use designer and forms 9i with PL/SQL.
How can I copy the files from BLOB to file in a directory or how can I pass BLOB's content to the proper application directly to open it?

The mime type is just a string as explained above (e.g. application/pdf...). There are lot of samples here and on metalink.
E.g. add a column mime_type varchar(30) to your blob table. Create a procedure similar to the following:
PROCEDURE getblob
(P_FILE IN VARCHAR2
IS
vblob blob;
vmime_type myblobs.mime_type%type;
length number;
begin
     select document, mime_type into vblob,vmime_type from myblobs where docname = p_file;
     length := dbms_lob.getlength(vblob);
     if length = 0 or vblob is null then
     htp.p('Document not available yet.');
     else
     owa_util.mime_header(vmime_type);
     htp.p('Content-Length: ' || dbms_lob.getlength(vblob));
     owa_util.http_header_close;
     wpg_docload.download_file(vblob);
     end if;
exception
     when others then
     htp.p(sqlerrm);
END;
Create a DAD on your application server (refer to documentation on how to create a DAD).
Display the blob from forms (e.g. on a when-button-pressed trigger):
web.show_document('http://myserver:port/DAD/getblob?p_file=myfilename','_blank');
For storing blobs in a directory on your db server take a look at the dbms_lob package.
For storing blobs in a directory on your app server take a look at WebUtil available on OTN.
HTH
Gerald Krieger

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