Dynamic sizing of RAW datatype

Hi All,
I want to read BLOBs out of a table using the DBMS_LOB package
I would like to do something like...
my_blob_length := DBMS_LOB.GETLENGTH(my_blob);
DECLARE
my_buffer RAW(my_blob_length); -- this is the bit I'm stuck with ;-)
DBMS_LOB.READ(my_blob, my_blob_length, 0, my_buffer);
But I don't know how to dynamically size the RAW buffer. Any advice gratefully received.
Cheers,
Ewan

But I don't know how to dynamically size the RAW buffer. Any advice gratefully received.The only way (I can think of) that you can dynamically declare length, precision, or scale for a PL/SQL variable is to do within an anonymous PL/SQL block of Native Dynamic SQL.
Doing this is probably more of a headache than it is worth - very impractical to code/debug/maintain/scale.
Michael

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How can i read a stored picture in oracle Long Raw datatype? blob or clob?

How can i read a stored picture in oracle Long Raw datatype? Like a blob or clob?....i am using jdk 1.3
This is because...i tried to read it like a blob but i obtain a exception...about Type of column no valid......but the column exist....and it contains the long raw datatype of the pictures.....this is my code:
import java.sql.*;
import java.io.*;
import java.util.*;
import oracle.jdbc.driver.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.InputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.DriverManager;
import oracle.sql.BLOB;
import oracle.sql.BLOB.*;
import oracle.jdbc.driver.*;
import java.sql.*;
class rec_ima1
public static void main(String h[])
Connection con = null;
Blob bl;
final ImageIcon image1;
JPanel photo;
try
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
con= DriverManager.getConnection("jdbc:oracle:thin:@123.3.12.213:1521:db_name","user","password");
String query = "Select * from pictures where ID = '18840'";
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery( query );
if (!rs.next())
System.out.println("Empty Result Set");
bl = rs.getBlob(5);
if (bl == null) {
System.out.println("Null Blob");
return;
InputStream is = bl.getBinaryStream();
int imageLength = (int) bl.length();
System.out.println(imageLength);
System.out.println(bl.length());
byte[] imageData = new byte [imageLength];
is.read(imageData, 0, imageLength);
image1 = new ImageIcon(imageData);
photo = new JPanel() {
public void paint(Graphics g){
g.setColor(Color.lightGray);
g.drawImage(image1.getImage(), 0, 0, this);
} catch (Exception e) {
e.printStackTrace();
Now i tried using clob:
import java.sql.*;
import java.io.*;
import java.util.*;
import oracle.jdbc.driver.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.InputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.DriverManager;
import oracle.sql.CLOB;
import oracle.sql.CLOB.*;
import oracle.jdbc.driver.*;
import java.sql.CallableStatement;
class rec_ima4
public static void main(String h[])
Connection con = null;
Clob cl;
JPanel photo;
try
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
con= DriverManager.getConnection("jdbc:oracle:thin:@123.3.12.213:1521:db_name","user","password");
con.setAutoCommit (false);
String query = "Select * from pictures where ID = '18840'";
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery( query );
while (rs.next()) {
oracle.sql.CLOB clob = (CLOB) rs.getObject(5); //line 47
} catch (Exception e) {
e.printStackTrace();
This is the runtime exception:
java.lang.ClassCastException: [B
at rec_ima4.main(rec_ima4.java:47)

Thanks by answering to me......
Well....i did that....but what is ImageIO?....
I declared a ImageIcon imageIO, but this give me the following:
rec_ima3.java:49: cannot resolve symbol
symbol : class BufferedImage
location: class rec_ima3
BufferedImage bi = ImageIO.read(bInput);
^
rec_ima3.java:49: cannot resolve symbol
symbol : variable ImageIO
location: class rec_ima3
BufferedImage bi = ImageIO.read(bInput);
^
What classes i have to import?.....what is ImageIO?
Thanks

How to convert number datatype to raw datatype for use in data warehouse?

I am picking up the work of another grad student who assembled the initial data for a data warehouse, mapped out a dimensional dw and then created then initial fact and dimension tables. I am using oracle enterprise 11gR2. The student was new to oracle and used datatypes of NUMBER (without a length - defaulting to number(38) for dimension keys. The dw has 1 fact table and about 20 dimension tables at this point.
Before refining the dw further, I have to translate all these dimension tables and convert all columns of Number and Number(n) (where n=1-38) to raw datatype with a length. The goal is to compact the size of the dw database significantly. With only a few exceptions every number column is a dimension key or attribute.
The entire dw db is now sitting in a datapump dmp file. this has to be imported to the db instance and then somehow converted so all occurrences of a number datatype into raw datatypes. BTW, there are other datatypes present such as varchar2 and date.
I discovered that datapump cannot convert number to raw in an import or export, so the instance tables once loaded using impdp will be the starting point.
I found there is a utl_raw package delivered with oracle to facilitate using the raw datatype. This has a numbertoraw function. Never used it and am unsure how to incorporate this in the table conversions. I also hope to use OWB capabilities at some point but I have never used it and only know that it has a lot of analytical capabilities. As a preliminary step I have done partial imports and determined the max length of every number column so I can alter the present schema number columns tp be an apporpriate max length for each column in each table.
Right now I am not sure what the next step is. Any suggestions for the data conversion steps would be appreciated.

Hi there,
The post about "Convert Numbers" might help in your case. You might also interested in "Anydata cast" or transformations.
Thanks,

How to view contents in Long Raw datatype column

Hi,
We have two node RAC database with 10.2.0.4.0 version.
OS - IBM AIX.
We have a table with a column with datatype "LONG RAW" in production. It stores image files.
We need to send the images from few rows to third party vendor. Basically, they need to view the images.
Earlier, I have exported to dump file using datapump and sent to vendor. but vendor is telling that they are not able to view the images. Can you please suggest best method to transfer the images (LONG RAW datatype) and the method to view them.

We have a table with a column with datatype "LONG RAW" in production. It stores image files.
We need to send the images from few rows to third party vendor. Basically, they need to view the images.
Earlier, I have exported to dump file using datapump and sent to vendor. but vendor is telling that they are not able to view the images. Can you please suggest best method to transfer the images (LONG RAW datatype) and the method to view them.How is the vendor trying to use the extracted images? Data exported with datapump must be imported into another database with datapump. The same applies to the exp utility (must use imp to load into a database).
If you're careful you should be able to write a binary file using utl_file.
Regarding the long raw, is there any way you could convert to BLOBS? Longs and Long raws are notoriously hard to work with

The question about RAW datatype in VBA with OO4O

Hi all.
I have developed a sort of VBA program with oo4o.
When I issued "select rawtohex(saddr),saddr from v$session where rownum < 2" and I displayed the result on excel spread sheet.
The result was below.
RAWTOHEX(SADDR) SADDR
C0000000E14ADDF0 �
I found I couldn't display a raw datatype result without using RAWTOHEX function.
But, I query the table using "*",such as " select * from v$session" sometime. So I have to display the raw datatype result without using oracle function.
I heard that the "RAW" datatype is a array of byte, so I used byte array.
The following is my first idea and the result is wrong.
The result is 'FF000000......', not 'C000000....'
Is there any good idea?
Dim oSession As Object
Dim oDatabase As Object
Dim oRs As Object
Dim cntCol, cntRow As Long
Dim rowNum, colNum As Long
Dim sraw() As Byte
Dim k As Integer
Dim hexaString As String
Set oSession = CreateObject("OracleInProcServer.XOraSession")
Set oDatabase = oSession.DbOpenDatabase(gTargetServer, gUserID & "/" & gPasswd, 0&)
Set oRs = oDatabase.DbCreateDynaset(gSqlString, 0&)
cntCol = oRs.Fields.Count
cntRow = oRs.RecordCount
ReDim resData(cntRow, cntCol) ' the variant type array to store result
'To store column title.
For colNum = 0 To cntCol - 1
resData(0, colNum) = oRs.Fields(colNum).Name
Next colNum
'To store data.
For rowNum = 1 To cntRow
For colNum = 0 To cntCol - 1
Select Case oRs.Fields(colNum).Type
Case 11
sraw = oRs.Fields(colNum).Value
For k = 0 To UBound(sraw)
hexaString = hexaString & Hex(sraw(k)) '<= here.***********
Next k
resData(rowNum, colNum) = hexaString
Case Else
resData(rowNum, colNum) = oRs.Fields(colNum).Value
End Select
Next colNum
oRs.MoveNext
Next rowNum
I hope I get helps.
Bill.

But, I query the table using "*",such as " select * from v$session" sometimeCan't you use
select rawtohex(saddr) hexaddr, t.* from v$session t
(if you really need '*' ) ?
Rgds.

ABEND in Java User Exit with RAW DataType

I have a Java User Exit Extract running against a trail file that has been pumped to the GoldenGate instance in question. The extract starts up without any issues, but gives the following error after I update a record that has a RAW datatype as the primary key:
JAVAWRITER(javawriter.c:269) [ERROR]: Error occurred (Java exception): UEDataSource.createOperation:
com.goldengate.atg.datasource.InvalidTransactionState: A new operation was received without first receiving a BEGIN transaction. This can happen when processing is resumed in the middle of a transaction, or when there are "before" images in the trail that are not being sent to the user exit (always include "GetUpdateBefores" in the user-exit parameter file).
I have tried a number of things to try to resolve this, but I can't seem to make this work. the params for this extract currently looks like this:
extract uePump
sourcedefs ./dirdef/my_defgen.def
setenv (GGS_USEREXIT_CONF = "dirprm/javaue.properties")
getupdatebefores
cuserexit ./dirprm/libggjava_ue.so CUSEREXIT passthru includeupdatebefores
table my_schema.B_PLN_DIR, fetchmodcols (PLN_DIR_ID, *);
table my_schema.*;
... I've tried leaving off the "includeupdatebefores" argument to the cuserexit, leaving out the fetchmodcols handling for the table with the RAW PK field, but I still get the error shown above.
Any help / pointers is much appreciated.

includeupdatebefores (lowercase) doesn't work; you must use the uppercase INCLUDEUPDATEBEFORES !!

Export and Import Of Tables having BLOB and Raw datatype

Hi Gurus,
I had to export one schema in one database and import to another schema in another database.
However my current database contains raw and blob datatype.I have exported the whole database by the following commnad
exp SYSTEM/manager FULL=y FILE=jbrms_full_19APR2013.dmp log=jbrms_full_19APR2013.log GRANTS=y ROWS=y
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. about to export JBRMS's tables via Conventional Path ...
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EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table FS_WS_DEFAULT_FSENTRY 2 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
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EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table PM_WS_DEFAULT_BUNDLE 751 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table PM_WS_DEFAULT_NAMES 2 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table PM_WS_DEFAULT_REFS 4 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table VERSIONING_FS_FSENTRY 1 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
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EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
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EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table VERSIONING_PM_NAMES 2 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table VERSIONING_PM_REFS 1370 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.

You could see the 'QUESTIONABLE STATISTICS' warning for a couple of reasons. I don't remember them all but.
1. If the target and source character set is different.
2. system generated names (I think?)
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statistics=none
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Dean

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Dynamic sizing

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But I don't know how to dynamically size the RAW buffer. Any advice gratefully received.The only way (I can think of) that you can dynamically declare length, precision, or scale for a PL/SQL variable is to do within an anonymous PL/SQL block of Native Dynamic SQL.
Doing this is probably more of a headache than it is worth - very impractical to code/debug/maintain/scale.
Michael

How can i see the containts of Raw datatype

hi friends,
I have an application in which some raw datatype is given i wanted to see through sql or plsql ,is any conversion function is there in oracle to see it,if no then how to see it .
raj

Try SQL Function RAWTOHEX()
Fine more info on
http://technet.oracle.com/docs/products/oracle8i/doc_library/817_doc/server.817/a85397/function.htm#78519

How to find the long/raw datatype tables

HI ppl,
I want to find out the long/raw datatype tables in Oracle database.
Please provide the query..
Plz help.
Oracle version :10gr2
platform:HP-UNIX

Hi,
is this is what you are looking for?
SELECT
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      OWNER
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WHERE
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Hi All,
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Hi ,
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one will be string and another one will be a out variable having dynamic return type based on the data in first passing parameter.
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Dynamic sizing of RAW datatype

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