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dotnet ado.net : Object must implement IConvertible, writing to BLOB
with the example provided in the documentation provided with OracleClient. The called stored procedure functions perfectly, I have tested it manually with success, but when I try to use the function, I get the error "Object must implement IConvertible". I also tested with the code in comment, without success and the same result. If anyone has an idea... int fileLength = Convert.ToInt32(_BinaryFile.Length); byte[] fileBinary = new byte[fileLength]; int status = _BinaryFile.Read(fileBinary, 0, fileLength); _BinaryFile.Close(); OracleConnection oc = new OracleConnection(ConfigurationSettings.AppSettings["ConnectionString"]); oc.Open(); OracleTransaction tx = oc.BeginTransaction(); OracleCommand ocm = oc.CreateCommand (); ocm.Transaction = tx; /* ocm.CommandText = "declare xx blob; begin dbms_lob.createtemporary(xx, false, 0); :tempblob := xx; end;"; ocm.Parameters.Add(new OracleParameter("tempblob", OracleType.Blob)).Direction = ParameterDirection.Output; ocm.ExecuteNonQuery(); OracleLob ol = (OracleLob)ocm.Parameters[0].Value; ol.BeginBatch(OracleLobOpenMode.ReadWrite); ol.Write(fileBinary, 0, fileLength); ol.EndBatch(); */ ocm.Parameters.Clear(); ocm.CommandText = PUT_FILE; //Constant ocm.CommandType = CommandType.StoredProcedure; ocm.Parameters.Add( new OracleParameter("PROCESS_ID", OracleType.VarChar, 36)).Value = _ProcessID; ocm.Parameters.Add( new OracleParameter("NSB", OracleType.VarChar, 15)).Value = _NSB; ocm.Parameters.Add( new OracleParameter("GENERATION_DATE", OracleType.DateTime)).Value = _Date; if (_AllPublication) ocm.Parameters.Add( new OracleParameter("ALLPUBLICATION", OracleType.Number)).Value = 1; else ocm.Parameters.Add( new OracleParameter("ALLPUBLICATION", OracleType.Number)).Value = 0; ocm.Parameters.Add( new OracleParameter("FILTERED", OracleType.Number)).Value = _Filtered; ocm.Parameters.Add( new OracleParameter("DATE_FROM", OracleType.DateTime)).Value = _DateFrom; ocm.Parameters.Add( new OracleParameter("DATE_TO", OracleType.DateTime)).Value = _DateTo; ocm.Parameters.Add( new OracleParameter("FILE_FORMAT", OracleType.VarChar, 3)).Value = _Format; ocm.Parameters.Add( new OracleParameter("PATH", OracleType.VarChar, 500)).Value = _Path; ocm.Parameters.Add( new OracleParameter("FILE_NAME", OracleType.VarChar, 500)).Value = _FileName; ocm.Parameters.Add( new OracleParameter("FILE_BINARY", OracleType.Blob)).Value = fileBinary; //ocm.Parameters.Add( new OracleParameter("FILE_BINARY", OracleType.Blob)).Value = ol; ocm.Parameters.Add( new OracleParameter("p_err", OracleType.Number)).Direction = ParameterDirection.Output; ocm.ExecuteNonQuery(); tx.Commit(); oc.Close();
The data type specified on the OracleParameter is incorrect.
-- - Sahil Malik [MVP] ADO.NET 2.0 book - http://codebetter.com/blogs/sahil.malik/archive/2005/05/13/63199.aspx ---------------------------------------------------------------------------- --------------- [quoted text, click to view] "Jonaze" <joel.naze@aemc.net> wrote in message news:1127303163.534208.289750@f14g2000cwb.googlegroups.com... > I have a function with the following code, I have written this function > with the example provided in the documentation provided with > OracleClient. > > The called stored procedure functions perfectly, I have tested it > manually with success, but when I try to use the function, I get the > error "Object must implement IConvertible". > > I also tested with the code in comment, without success and the same > result. If anyone has an idea... > > int fileLength = Convert.ToInt32(_BinaryFile.Length); > byte[] fileBinary = new byte[fileLength]; > > int status = _BinaryFile.Read(fileBinary, 0, fileLength); > > _BinaryFile.Close(); > > OracleConnection oc = new > OracleConnection(ConfigurationSettings.AppSettings["ConnectionString"]); > > oc.Open(); > OracleTransaction tx = oc.BeginTransaction(); > OracleCommand ocm = oc.CreateCommand (); > ocm.Transaction = tx; > /* > > ocm.CommandText = "declare xx blob; begin dbms_lob.createtemporary(xx, > false, 0); :tempblob := xx; end;"; > ocm.Parameters.Add(new OracleParameter("tempblob", > OracleType.Blob)).Direction = ParameterDirection.Output; > ocm.ExecuteNonQuery(); > > OracleLob ol = (OracleLob)ocm.Parameters[0].Value; > > ol.BeginBatch(OracleLobOpenMode.ReadWrite); > ol.Write(fileBinary, 0, fileLength); > ol.EndBatch(); > */ > ocm.Parameters.Clear(); > > ocm.CommandText = PUT_FILE; //Constant > ocm.CommandType = CommandType.StoredProcedure; > > ocm.Parameters.Add( new OracleParameter("PROCESS_ID", > OracleType.VarChar, 36)).Value = _ProcessID; > ocm.Parameters.Add( new OracleParameter("NSB", OracleType.VarChar, > 15)).Value = _NSB; > ocm.Parameters.Add( new OracleParameter("GENERATION_DATE", > OracleType.DateTime)).Value = _Date; > if (_AllPublication) > ocm.Parameters.Add( new OracleParameter("ALLPUBLICATION", > OracleType.Number)).Value = 1; > else > ocm.Parameters.Add( new OracleParameter("ALLPUBLICATION", > OracleType.Number)).Value = 0; > ocm.Parameters.Add( new OracleParameter("FILTERED", > OracleType.Number)).Value = _Filtered; > ocm.Parameters.Add( new OracleParameter("DATE_FROM", > OracleType.DateTime)).Value = _DateFrom; > ocm.Parameters.Add( new OracleParameter("DATE_TO", > OracleType.DateTime)).Value = _DateTo; > ocm.Parameters.Add( new OracleParameter("FILE_FORMAT", > OracleType.VarChar, 3)).Value = _Format; > ocm.Parameters.Add( new OracleParameter("PATH", OracleType.VarChar, > 500)).Value = _Path; > ocm.Parameters.Add( new OracleParameter("FILE_NAME", > OracleType.VarChar, 500)).Value = _FileName; > ocm.Parameters.Add( new OracleParameter("FILE_BINARY", > OracleType.Blob)).Value = fileBinary; > //ocm.Parameters.Add( new OracleParameter("FILE_BINARY", > OracleType.Blob)).Value = ol; > ocm.Parameters.Add( new OracleParameter("p_err", > OracleType.Number)).Direction = ParameterDirection.Output; > > ocm.ExecuteNonQuery(); > > tx.Commit(); > > oc.Close(); >
Sorry if I am stupid...
And which datatype I have to use ? Into the Oracle procedure the column type is Blob and if you see the example provided into MSDN and the Oracle documentation, they also use blob. Could you be more precise in your answer? Thank you Jo=EBl Sahil Malik [MVP] a =E9crit : [quoted text, click to view] > The data type specified on the OracleParameter is incorrect.
> > -- > > - Sahil Malik [MVP] > ADO.NET 2.0 book - > http://codebetter.com/blogs/sahil.malik/archive/2005/05/13/63199.aspx > -------------------------------------------------------------------------= --- > --------------- > > "Jonaze" <joel.naze@aemc.net> wrote in message > news:1127303163.534208.289750@f14g2000cwb.googlegroups.com... > > I have a function with the following code, I have written this function > > with the example provided in the documentation provided with > > OracleClient. > > > > The called stored procedure functions perfectly, I have tested it > > manually with success, but when I try to use the function, I get the > > error "Object must implement IConvertible". > > > > I also tested with the code in comment, without success and the same > > result. If anyone has an idea... > > > > int fileLength =3D Convert.ToInt32(_BinaryFile.Length); > > byte[] fileBinary =3D new byte[fileLength]; > > > > int status =3D _BinaryFile.Read(fileBinary, 0, fileLength); > > > > _BinaryFile.Close(); > > > > OracleConnection oc =3D new > > OracleConnection(ConfigurationSettings.AppSettings["ConnectionString"]); > > > > oc.Open(); > > OracleTransaction tx =3D oc.BeginTransaction(); > > OracleCommand ocm =3D oc.CreateCommand (); > > ocm.Transaction =3D tx; > > /* > > > > ocm.CommandText =3D "declare xx blob; begin dbms_lob.createtemporary(xx, > > false, 0); :tempblob :=3D xx; end;"; > > ocm.Parameters.Add(new OracleParameter("tempblob", > > OracleType.Blob)).Direction =3D ParameterDirection.Output; > > ocm.ExecuteNonQuery(); > > > > OracleLob ol =3D (OracleLob)ocm.Parameters[0].Value; > > > > ol.BeginBatch(OracleLobOpenMode.ReadWrite); > > ol.Write(fileBinary, 0, fileLength); > > ol.EndBatch(); > > */ > > ocm.Parameters.Clear(); > > > > ocm.CommandText =3D PUT_FILE; //Constant > > ocm.CommandType =3D CommandType.StoredProcedure; > > > > ocm.Parameters.Add( new OracleParameter("PROCESS_ID", > > OracleType.VarChar, 36)).Value =3D _ProcessID; > > ocm.Parameters.Add( new OracleParameter("NSB", OracleType.VarChar, > > 15)).Value =3D _NSB; > > ocm.Parameters.Add( new OracleParameter("GENERATION_DATE", > > OracleType.DateTime)).Value =3D _Date; > > if (_AllPublication) > > ocm.Parameters.Add( new OracleParameter("ALLPUBLICATION", > > OracleType.Number)).Value =3D 1; > > else > > ocm.Parameters.Add( new OracleParameter("ALLPUBLICATION", > > OracleType.Number)).Value =3D 0; > > ocm.Parameters.Add( new OracleParameter("FILTERED", > > OracleType.Number)).Value =3D _Filtered; > > ocm.Parameters.Add( new OracleParameter("DATE_FROM", > > OracleType.DateTime)).Value =3D _DateFrom; > > ocm.Parameters.Add( new OracleParameter("DATE_TO", > > OracleType.DateTime)).Value =3D _DateTo; > > ocm.Parameters.Add( new OracleParameter("FILE_FORMAT", > > OracleType.VarChar, 3)).Value =3D _Format; > > ocm.Parameters.Add( new OracleParameter("PATH", OracleType.VarChar, > > 500)).Value =3D _Path; > > ocm.Parameters.Add( new OracleParameter("FILE_NAME", > > OracleType.VarChar, 500)).Value =3D _FileName; > > ocm.Parameters.Add( new OracleParameter("FILE_BINARY", > > OracleType.Blob)).Value =3D fileBinary; > > //ocm.Parameters.Add( new OracleParameter("FILE_BINARY", > > OracleType.Blob)).Value =3D ol; > > ocm.Parameters.Add( new OracleParameter("p_err", > > OracleType.Number)).Direction =3D ParameterDirection.Output; > > > > ocm.ExecuteNonQuery(); > > > > tx.Commit(); > > > > oc.Close(); > >
Well, it's one of the parameters whose datatype is incorrect. You will have
to match up the database column data type to the OracleParameter.DbType specified one by one .. sorry can't really tell much without actually looking at your tables and have a working app in front of me. - Sahil Malik [MVP] ADO.NET 2.0 book - http://codebetter.com/blogs/sahil.malik/archive/2005/05/13/63199.aspx ---------------------------------------------------------------------------- --------------- [quoted text, click to view] "Jonaze" <joel.naze@aemc.net> wrote in message Sorry if I am stupid...news:1127328674.778766.255080@z14g2000cwz.googlegroups.com... And which datatype I have to use ? Into the Oracle procedure the column type is Blob and if you see the example provided into MSDN and the Oracle documentation, they also use blob. Could you be more precise in your answer? Thank you Joël Sahil Malik [MVP] a écrit : [quoted text, click to view] > The data type specified on the OracleParameter is incorrect. > > -- > > - Sahil Malik [MVP] > ADO.NET 2.0 book - > http://codebetter.com/blogs/sahil.malik/archive/2005/05/13/63199.aspx > -------------------------------------------------------------------------- -- > --------------- > > "Jonaze" <joel.naze@aemc.net> wrote in message > news:1127303163.534208.289750@f14g2000cwb.googlegroups.com... > > I have a function with the following code, I have written this function > > with the example provided in the documentation provided with > > OracleClient. > > > > The called stored procedure functions perfectly, I have tested it > > manually with success, but when I try to use the function, I get the > > error "Object must implement IConvertible". > > > > I also tested with the code in comment, without success and the same > > result. If anyone has an idea... > > > > int fileLength = Convert.ToInt32(_BinaryFile.Length); > > byte[] fileBinary = new byte[fileLength]; > > > > int status = _BinaryFile.Read(fileBinary, 0, fileLength); > > > > _BinaryFile.Close(); > > > > OracleConnection oc = new > > OracleConnection(ConfigurationSettings.AppSettings["ConnectionString"]); > > > > oc.Open(); > > OracleTransaction tx = oc.BeginTransaction(); > > OracleCommand ocm = oc.CreateCommand (); > > ocm.Transaction = tx; > > /* > > > > ocm.CommandText = "declare xx blob; begin dbms_lob.createtemporary(xx, > > false, 0); :tempblob := xx; end;"; > > ocm.Parameters.Add(new OracleParameter("tempblob", > > OracleType.Blob)).Direction = ParameterDirection.Output; > > ocm.ExecuteNonQuery(); > > > > OracleLob ol = (OracleLob)ocm.Parameters[0].Value; > > > > ol.BeginBatch(OracleLobOpenMode.ReadWrite); > > ol.Write(fileBinary, 0, fileLength); > > ol.EndBatch(); > > */ > > ocm.Parameters.Clear(); > > > > ocm.CommandText = PUT_FILE; //Constant > > ocm.CommandType = CommandType.StoredProcedure; > > > > ocm.Parameters.Add( new OracleParameter("PROCESS_ID", > > OracleType.VarChar, 36)).Value = _ProcessID; > > ocm.Parameters.Add( new OracleParameter("NSB", OracleType.VarChar, > > 15)).Value = _NSB; > > ocm.Parameters.Add( new OracleParameter("GENERATION_DATE", > > OracleType.DateTime)).Value = _Date; > > if (_AllPublication) > > ocm.Parameters.Add( new OracleParameter("ALLPUBLICATION", > > OracleType.Number)).Value = 1; > > else > > ocm.Parameters.Add( new OracleParameter("ALLPUBLICATION", > > OracleType.Number)).Value = 0; > > ocm.Parameters.Add( new OracleParameter("FILTERED", > > OracleType.Number)).Value = _Filtered; > > ocm.Parameters.Add( new OracleParameter("DATE_FROM", > > OracleType.DateTime)).Value = _DateFrom; > > ocm.Parameters.Add( new OracleParameter("DATE_TO", > > OracleType.DateTime)).Value = _DateTo; > > ocm.Parameters.Add( new OracleParameter("FILE_FORMAT", > > OracleType.VarChar, 3)).Value = _Format; > > ocm.Parameters.Add( new OracleParameter("PATH", OracleType.VarChar, > > 500)).Value = _Path; > > ocm.Parameters.Add( new OracleParameter("FILE_NAME", > > OracleType.VarChar, 500)).Value = _FileName; > > ocm.Parameters.Add( new OracleParameter("FILE_BINARY", > > OracleType.Blob)).Value = fileBinary; > > //ocm.Parameters.Add( new OracleParameter("FILE_BINARY", > > OracleType.Blob)).Value = ol; > > ocm.Parameters.Add( new OracleParameter("p_err", > > OracleType.Number)).Direction = ParameterDirection.Output; > > > > ocm.ExecuteNonQuery(); > > > > tx.Commit(); > > > > oc.Close(); > >
Hi,
Can you specify the line at which the error/exception is raised ? Kalpesh
I'm guessing this one "ocm.ExecuteNonQuery();"
-- - Sahil Malik [MVP] ADO.NET 2.0 book - http://codebetter.com/blogs/sahil.malik/archive/2005/05/13/63199.aspx ---------------------------------------------------------------------------- --------------- [quoted text, click to view] "Kalpesh" <shahkalpesh@gmail.com> wrote in message news:1127386117.202852.222920@g43g2000cwa.googlegroups.com... > Hi, > > Can you specify the line at which the error/exception is raised ? > > Kalpesh >
Hi Jonaze,
Add cmd.parameters.refresh before actually appending the parameters This will get the names, types of all parameters to the store procedures & the parameters collction will get pre-filled. This way, you will be able to identify the parameters to the stored proc, their parameter name, type, direction, size etc This will help you know what is the parameter type for FILE_BINARY parameter Does this help Kalpesh PS - Do not use cmd.parameters.refresh in your actual code
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