1

感谢您花时间查看并帮助我。我对似乎非常简单的插入操作感到疯狂，但我似乎无法通过这部分。这是我的代码：

 protected void InsertIntoMaterialDB()
    {
        ToroGeneral toro = new ToroGeneral();

        // Grab connection string.
        string conString = toro.GetOracle1ConnectionString();
        string insertQuery = "INSERT INTO MATERIALMOVEREQUEST (ORIGINATOR, REQUESTDATE, PARTNUMBER, REQUESTQTY, MOVEFROM, MOVETO, COMPLETEDBY, COMPLETION_DATE, COMMENTS, RESPONSETIME) "
                               + "values (:Originator, :RequestDate, :PartNumber, :RequestQty, :MoveFrom, :MoveTo, :CompletedBy, :CompletionDate, :ResponseTime, :Comments)";

        using(OracleConnection conn1 = new OracleConnection(conString))
        {    
             conn1.Open();
             OracleCommand cmd = conn1.CreateCommand();
             OracleTransaction myTrans;
             cmd.CommandText = insertQuery;
             myTrans = conn1.BeginTransaction(IsolationLevel.ReadCommitted);
             cmd.Transaction = myTrans;

             if (cmd.Connection.State == ConnectionState.Closed)
             {
                  cmd.Connection.Open();
             }

             DateTime rDate = DateTime.Parse(RequestDateTB.Text);
             DateTime cDate = DateTime.Parse(CompDateTB.Text);

             cmd.Parameters.AddWithValue("Originator", OracleType.VarChar).Value = OriginatorTB.Text;
             cmd.Parameters.AddWithValue("RequestDate", OracleType.DateTime).Value = rDate;
             cmd.Parameters.AddWithValue("PartNumber", OracleType.VarChar).Value = PartNumber.Text;
             cmd.Parameters.AddWithValue("RequestQty", OracleType.Number).Value = Convert.ToInt32(RequestQuantity.Text);
             cmd.Parameters.AddWithValue("MoveFrom", OracleType.VarChar).Value = MoveFromTB.Text;
             cmd.Parameters.AddWithValue("MoveTo", OracleType.VarChar).Value = MoveToTB.Text;
             cmd.Parameters.AddWithValue("CompletedBy", OracleType.VarChar).Value = CompletedByTB.Text;
             cmd.Parameters.AddWithValue("CompletionDate", OracleType.DateTime).Value = cDate;
             cmd.Parameters.AddWithValue("ResponseTime", OracleType.Number).Value = Convert.ToInt32(RespTimeTB.Text);
             cmd.Parameters.AddWithValue("Comments", OracleType.VarChar).Value = CommentsTB.Text;

             cmd.ExecuteNonQuery(); // THIS THROWS AN EXCEPTION.
             cmd.Transaction.Commit();
        }

    }

除了两个“日期”类型字段 REQUESTDATE 和 COMPLETION_DATE 之外，我能够让一切正常工作。我不知道我做错了什么，除了当它到达 ExecuteNonQuery() 调用时它会引发异常。

如果有人有任何建议，将不胜感激。

4

3 回答 3

2

I've run into a similar issue in the past. Use the To_Date function to convert the string to a date oracle will recognize.

INSERT INTO MATERIALMOVEREQUEST (ORIGINATOR, REQUESTDATE, PARTNUMBER, REQUESTQTY, MOVEFROM, MOVETO, COMPLETEDBY, COMPLETION_DATE, COMMENTS, RESPONSETIME) "
                           + "values (:Originator, To_Date(:RequestDate, 'YYYY-MM-DD-HH24:MI:SS'), :PartNumber, :RequestQty, :MoveFrom, :MoveTo, :CompletedBy, To_Date(:CompletionDate, 'YYYY-MM-DD-HH24:MI:SS'), :ResponseTime, :Comments)";

Then in your parameters set the value to a string.

cmd.Parameters.AddWithValue("RequestDate", OracleType.VarChar).Value = rDate.ToString("yyyy-MM-dd-hh:mm:ss");
于 2012-06-12T19:52:54.780 回答
1

对于 Date 字段，您可能希望使用OracleType.DateTime并传递您通过解析输入字符串生成的 DateTime 值，例如：

AddWithValue("CompletedBy", OracleType.DateTime).Value = 
              DateTime.ParseExact(...CompletedByTB.Text...);
于 2012-06-12T17:21:26.117 回答
0

除了上面乔所说的之外，我还注意到了几件事：-

a) 您正在打开一个事务，但在出现任何异常时从不回滚它。您可能希望用 try catch 语句将其括起来，并在出现异常时回滚事务并在其他情况下提交。

b）您应该始终在连接对象周围使用 using 块（我刚刚在问题中编辑了您的代码）。这样您就不必明确关闭和处理连接。这是因为所有连接提供程序类型（包括 OracleConnection）都通过其基类“DbConnection”实现IDisposable接口。

于 2012-06-12T17:28:48.720 回答