[英]Arithmetic overflow error converting varchar to data type numeric in asp.net
[英]Arithmetic overflow error converting varchar to data type numeric. Error in asp.net
我知道可能有多次提到我所提到的錯誤的信息,但我認真地嘗試了一下,但對我沒有用。
我有一個代碼,該代碼在adding menu dynamically
。 因此,如果菜單位於Root中,則其Parent_Mkey
始終為0。一切正常,但是當我調試以下行時
MainEnqMkey = InsertUpdateDelete.InsertUpdateDeleteCls.InsertUpdateDelete_sql(strMode, strMkey, "WMS_Menu_Hdr", "MKEY", "MEH", StrPubBldg.ToString());
我得到錯誤
將varchar轉換為數值數據類型的算術溢出錯誤。
這是我的下面的代碼
public bool Save()
{
int strMkey;
if (txt_menu_name.Value == "" && txt_url_name.Text == "" && HidSelNode.Value != "0")
{
strMode = "M";
strMkey = Convert.ToInt32(HidSelNode.Value);
}
else
{
strMode = "A";
strMkey = 0;
}
if (1 == 1)
{
SqlConnection ObjPriCon = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["SqlConn"].ToString());
ObjPriCon.Open();
StringBuilder StrPubBldg = new StringBuilder();
XmlWriter xw = XmlWriter.Create(StrPubBldg);
xw.WriteStartElement("DocumentElement");
xw.WriteStartElement("WMS_Menu_Hdr");
xw.WriteElementString("DELETE_FLAG", "N");
if (strMode == "M")
{
xw.WriteElementString("MENU_NAME", txt_selnode.Text);
xw.WriteElementString("URL", txt_selurl.Text);
}
else
{
string result;
string strquery = "select max(order_by) +10 order_by from WMS_Menu_Hdr where PARENT_MKEY=@PARENT_MKEY";
SqlCommand ObjPriCmd = new SqlCommand(strquery, ObjPriCon);
if (HidSelNode.Value == "0")
{
ObjPriCmd.Parameters.AddWithValue("@PARENT_MKEY", HidSelNode.Value);
result = ObjPriCmd.ExecuteScalar().ToString();
}
else
{
ObjPriCmd = new SqlCommand("select ISNULL(a.order_by, max(b.order_by) +10) next_orderby " +
" from WMS_Menu_Hdr b," +
"(select max(order_by) +10 order_by from WMS_Menu_Hdr where PARENT_MKEY= '" + HidSelNode.Value + "') a " +
" where mkey='" + HidSelNode.Value + "' group by a.order_by", ObjPriCon);
strquery = ObjPriCmd.ExecuteScalar().ToString();
}
xw.WriteElementString("MENU_NAME", txt_menu_name.Value);
xw.WriteElementString("URL", txt_url_name.Text);
xw.WriteElementString("CREATION_DATE", System.DateTime.Now.ToString("dd/MM/yyyy hh:mm:ss"));
xw.WriteElementString("PARENT_MKEY", HidSelNode.Value);
xw.WriteElementString("ORDER_BY", strquery);
}
xw.WriteEndElement();
xw.Close();
MainEnqMkey = InsertUpdateDelete.InsertUpdateDeleteCls.InsertUpdateDelete_sql(strMode, strMkey, "WMS_Menu_Hdr", "MKEY", "MEH", StrPubBldg.ToString());
}
if (MainEnqMkey.Equals(0))
{
ClientScript.RegisterStartupScript(this.GetType(), "SuccessScript", "alert('Some Error Occured While Saving Data !!')", true);
return false;
}
else
{
return true;
}
}
請在這里提出問題
問題是您的PARENT_MKEY
是numeric
,但是您插入的是'0'
,即varchar
。
我認為SQL應該看起來像( '0'
=> 0
):
insert into WMS_Menu_Hdr (MKEY,DELETE_FLAG,MENU_NAME,URL,CREATION_DATE,PARENT_MKEY,ORDER_BY) values(44,'N','WMS Root','test.aspx','01-12-2015 04:51:40',0,'select max(order_by) +10 order_by from WMS_Menu_Hdr where PARENT_MKEY=@PARENT_MKEY')
更新。
當您插入varchar
時,您的ORDER_BY
字段也是numeric
。 因此,您需要考慮一個代表select max(order_by) +10 order_by from WMS_Menu_Hdr where PARENT_MKEY=@PARENT_MKEY
或將ORDER_BY
類型更改為varchar
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