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How to insert over 4000 characters in XmlType using OracleClientFactory?

I am trying to insert an Xml fragment with a size of more than 4000 characters in an XmlType field in an Oracle table.

My code initially worked as follows:

DbParameter parameter = new DbParameter;
parameter = clientFactory.CreateParameter(":p_xml_data", DbType.AnsiString, messageToLog.Length, ParameterDirection.Input, messageToLog);

However, as soon as I started trying to insert Xml blocks larger than 4000 bytes, I got:

ORA-01461: can bind a LONG value only for insert into a LONG column

This is the same problem as this question 2508987 / insert-xml-with-more-than-4000-characters-into-a-oracle-xmltype-column , however I don't have DbType.Clob as an option (it doesn't exist).

Next I tried to change the type to DbType.Object, hoping that it just converts it to what it needs, but I get this message:

Cannot bind type System.String as Blob

Then I tried using DbType.XML, I changed my code to move messageToLog to a SqlXml object:

SqlXml sx;
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(messageToLog);
using (XmlNodeReader xnr = new XmlNodeReader(xmlDoc))
{
    sx = new SqlXml(xnr);
}

And changed the parameter accordingly:

parameter = providerFactory.CreateParameter(":p_xml_data", DbType.Xml, messageToLog.Length, ParameterDirection.Input, sx);

Now I get:

Value is not valid for DbType: Xml

XML .

+3
2

Oracle ODP.NET, , XMLType. OracleXmlType . #, . , , :

OracleCommand orainscmd = new OracleCommand("INSERT INTO employees(empinfo) " +
" VALUES (:empinfoxml)", con);
orainscmd.Parameters.Add(":empinfoxml", OracleDbType.XmlType);
OracleXmlType xmlinfo = new OracleXmlType(con,doc);
orainscmd.Parameters[0].Value=xmlinfo;
orainscmd.ExecuteNonQuery();
+2

:.OracleDbType = OracleDbType.XmlType;

.DBType = DbType.Xml , .

. :

    public void insertSimRun(OracleConnection conn, SliceDataExchange.ServiceReference1.SimulationRun simRun)
    {
        string sqlInsert = "INSERT INTO slice_sim (runid, first_int_start, simulation_run) ";
        sqlInsert += "values (:p_runid, :p_interval_start, :p_simxml)";

        OracleCommand cmdInsertSR = new OracleCommand();
        cmdInsertSR.CommandText = sqlInsert;
        cmdInsertSR.Connection = conn;

        OracleParameter runID = new OracleParameter();
        runID.DbType = DbType.Int32;
        runID.Value = simRun.RunId;
        runID.ParameterName = "p_runid";

        OracleParameter first_interval_start = new OracleParameter();
        first_interval_start.DbType = DbType.DateTime;
        first_interval_start.Value = simRun.FirstIntervalStartUtc;
        first_interval_start.ParameterName = "p_interval_start";

        var serializer = new XmlSerializer(typeof(SliceDataExchange.ServiceReference1.SimulationRun));
        StringWriter writer = new StringWriter();
        //System.Xml.XmlDocument xdoc = new System.Xml.XmlDocument();

        serializer.Serialize(writer,simRun);

        //xdoc.LoadXml(writer.ToString());

        OracleParameter simRunXML = new OracleParameter();
        simRunXML.DbType = DbType.String;
        simRunXML.ParameterName = "p_simxml";
        simRunXML.Value = writer.ToString();
        simRunXML.OracleDbType = OracleDbType.XmlType;


        cmdInsertSR.Parameters.Add(runID);
        cmdInsertSR.Parameters.Add(first_interval_start);
        cmdInsertSR.Parameters.Add(simRunXML);

        cmdInsertSR.ExecuteNonQuery();

        cmdInsertSR.Dispose();
    }
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