Insert Image and Load Image by VC# with Oracle 9i Database.

Question

I need save and load a Image to Database Oracle 9i, i use BLOB Datatype and VC#2003, i write code bellow:
Load image data.
m_Img is a parameter byte[], and :
this.openFile.ShowDialog(this);
string strFn=this.openFile.FileName;
this.pcPerson.Image=Image.FromFile(strFn);
FileStream fls;
fls=new FileStream(@strFn,FileMode.Open,FileAccess.Read);
m_Img=new byte[fls.Length];
fls.Read(m_Img,0,System.Convert.ToInt32(fls.Length));
fls.Close();
//Add Parameter
CnnOracle myBase = new CnnOracle();
string reqSQL = "SP_PERSON_UPDATE";
try
OracleConnection myConn = myBase.OpenConnection(myBase.cnxString);
OracleCommand myCommand = new OracleCommand(reqSQL,myConn);
myCommand.Parameters.Add(new System.Data.OracleClient.OracleParameter("Faxno", System.Data.OracleClient.OracleType.NVarChar, 20));
myCommand.Parameters["Faxno"].Value = myPerson.faxno;
myCommand.Parameters.Add(new System.Data.OracleClient.OracleParameter("Email", System.Data.OracleClient.OracleType.NVarChar, 20));
myCommand.Parameters["Email"].Value = myPerson.email;
myCommand.Parameters.Add(new System.Data.OracleClient.OracleParameter("Photo", System.Data.OracleClient.OracleType.Blob));
myCommand.Parameters["Photo"].Value = m_Img;
myCommand.CommandType = CommandType.StoredProcedure;
myCommand.ExecuteNonQuery();
myBase.CloseConnection(myConn);
catch(Exception myErr)
throw(new Exception(myErr.ToString() + reqSQL));
That code above don't run and have a error: "ORA-01460: unimplemented or unreasonable conversion requested\n",
but i clear these row:
myCommand.Parameters.Add(new System.Data.OracleClient.OracleParameter("Photo", System.Data.OracleClient.OracleType.Blob));
myCommand.Parameters["Photo"].Value = m_Img;
and modified StoreProcedure: clear parameter Photo, it run good
Why? Help me, Please.
Thank you very much.

Answer 1

Can you post your table structure?