.net：使用存储过程中的dataAdapter存储.net数据表

Question

I have a stored procedure called

GET_CLIENT(IN VARCHAR2, IN VARCHAR2, OUT SYS REF_CURSOR)

I am trying to store their results in ConnectAndQuery data table.

It results in this error:

System.Data.Odbc.OdbcException: ERROR [42000] [Microsoft][ODBC driver for Oracle][Oracle]
ORA-00900: invalid SQL statement

at ConexionBD.ConnectAndQuery(String layerName, Decimal idElemento, String idElementoString, String conexion).

My code:

public DataTable ConnectAndQuery(string layerName, decimal idElemento, string idElementoString, string conexion)
    {
        Logger.Debug("App_Code/ConexionBD.cs: using (OdbcConnection connection = new OdbcConnection(Driver={Microsoft ODBC for Oracle}; + conexion ");
        using (OdbcConnection conn = new OdbcConnection(conexion))
        {
            try
            {
                using (OdbcCommand Command = new OdbcCommand("{ call PKG_GEONET_REPORTS.GET_ORDINARY_CLIENT(?, ?, ?) }", conn))
                {
                    Command.CommandType = CommandType.StoredProcedure;
                    Command.Parameters.Add("client_in", OracleType.VarChar).Value = idElemento.ToString();
                    Command.Parameters.Add("layer_in", OracleType.VarChar).Value = layerName;
                    Command.Parameters.Add("client_data", OracleType.Cursor).Direction = ParameterDirection.Output;
                    using (OdbcDataAdapter da = new OdbcDataAdapter(Command))
                    {
                        DataTable dt = new DataTable();
                        da.Fill(dt);
                        return dt;
                    }
                }
            }
            catch (Exception ex)
            {
                throw (ex);
            }
        }
    }

Answer 1

Change your SQL text in your command.

da.SelectCommand = new OdbcCommand(
    "{ call PKG_NAME.GET_CLIENT(?, ?, ?) }",
    conn);

• Your 1st parameter "layer_in" should be OracleType.VarChar to match your stored procedure 1st parameter DataType, should it not?
• da.Fill(ds); should be used instead of da.Fill(ds,"RESULT_NAME?"); if you dont know the name of the result set.