Inserting Blob data into Oracle DB through JDBC

[Mythily Mr]

Hello friends,

I need to insert an image into the oracle db using jdbc.
I'm extracting the image from access db first as getBinaryStream and then inserting the same into oracle Blob data type column.

In access the image is stored in a column with data type OLE Object.

When i did this am geeting an error like

Io exception: InputStream is no longer valid - the Statement has been closed, or the cursor has been moved

Here is the code(for extracting data from Access Db)
public ArrayList<ArrayList<Member>> vSelectAll(ArrayList<String> tablename)
{
ArrayList<ArrayList<Member>> temp = new ArrayList<ArrayList<Member>>();
String temp_tablename =null;
Iterator it = tablename.iterator();
while(it.hasNext())
{
temp_tablename = (String)it.next();
System.out.println("tablename - "+temp_tablename);


String sql = "select * from "+temp_tablename;
try{
rs = st.executeQuery(sql);
while(rs.next())
{
product = rs.getString("PRODUCT");
Integer uwyear1 = rs.getInt("POLYEAR");
uwyear = uwyear1.toString();
memberno = rs.getString("MEMNO");
polserno = rs.getString("POLSRL");
Integer memsince1 = rs.getInt("MEMSINCE");
memsince = memsince1.toString();
picture = rs.getBinaryStream("PICTURE");

MemberDet.add(new Member(product,uwyear,memberno,polserno,memsince,picture));
}
System.out.println("MemberDet - "+MemberDet.size());
}
catch(SQLException e)
{
System.out.println(e.getMessage());
}
temp.add(MemberDet);
}
return temp;
}
Here is the codefor inserting to the oracle db)


public void vInsertPhoto(String product,String memberno,String polserno,String memsince,InputStream picture)
{
PreparedStatement st1 = null;
String sql = "insert into APP_MEMBER_PHOTO_DETAILS (AMP_PRODUCT_CODE,AMP_MEMBER_NO,AMP_MEM_REFERENCE_NO,AMP_MEMBER_PHOTO) values(?,?,?,?)";

try{
st1 = con.prepareStatement(sql);
if(picture !=null)
{
st1.setString(1, product);
st1.setString(2, memberno);
st1.setString(3, polserno);
st1.setBinaryStream(4, picture,1);
st1.setString(5, memsince);
st1.executeUpdate();
System.out.println("Insertion is happened");
}
else
System.out.println("picture is null");
}
catch(SQLException e)
{
System.out.println(e.getMessage());
}
finally
{
try {

st1.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

Please help me out to solve this problem

[Fatih Keles]

Hi Mythily,

You can not just store blob pointer inputstream in memory. Either you should fetch all the bytes and store it in memory in order to use it in vInsertPhoto method (not good), or you should read some bytes and then write it immediately.

You have to merge your methods into one method that will read one row from Access DB then insert it to Oracle DB.

Regards,
Fatih.