試圖發現語法錯誤

-1

試圖在我的代碼更新用戶信息時，遇到了這個錯誤...試圖發現語法錯誤

ErrorSystem.Data.OleDb.OleDbException（0x80040E14）：語法錯誤在 UPDATE語句。在在 System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling（OleDbHResult 小時）在 System.Data.OleDb.OleDbCommand.ExecuteCommandText（對象&（tagDBPARAMS dbParams，對象&的ExecuteReuslt）的ExecuteReuslt）在 System.Data.OleDb.OleDbCommand.ExecuteCommand（的CommandBehavior 行爲，在 System.Data.OleDb對象在 System.Data.OleDb.OleDbCommand.ExecuteReaderInternal（的CommandBehavior 行爲，字符串方法）&的ExecuteReuslt）。 OleDbCommand.ExecuteNonQuery（） clsDataLayer.UpdateUser（String userName，String favProgram，String City，String leastFav，String State，DateTime Date，Int32 userID1）in c：\ Users \ John Vinson \ Documents \ Visual Studio 2015 \ WebSites \ ProgramAnonymous \ App_Code \ clsDataLayer.cs：線56在 useraccount_details.updateinfo_Click（對象發件人，EventArgs e）如 C：\用戶\約翰文森\文件\的Visual Studio 2015 \網站已\ ProgramAnonymous \ useraccount_details.aspx.cs：線57

這裏是代碼...

public void UpdateUser(string userName, string favProgram, string City, string leastFav, 
     string State, DateTime Date, int userID1) 
    { 
     dbConnection.Open(); 

     string sqlStmt = "UPDATE users SET userName = @username1, " + 
      "favProgram = @favprogram1, " + 
      "city = @city1, " + 
      "state = @state1, " + 
      "leastFavProgram = @leastfavprogram, " + 
      "dateComplete = @datecomplete, " + 
      "WHERE (users.userID = @id)"; 

     OleDbCommand dbCommand = new OleDbCommand(sqlStmt, dbConnection); 

     OleDbParameter param = new OleDbParameter("@username1", userName); 
     dbCommand.Parameters.Add(param); 

     dbCommand.Parameters.Add(new OleDbParameter("@favprogram1", favProgram)); 
     dbCommand.Parameters.Add(new OleDbParameter("@city1", City)); 
     dbCommand.Parameters.Add(new OleDbParameter("@state1", State)); 
     dbCommand.Parameters.Add(new OleDbParameter("@leastfavprogram", leastFav)); 
     dbCommand.Parameters.Add(new OleDbParameter("@datecomplete", Date)); 
     dbCommand.Parameters.Add(new OleDbParameter("@id", userID1)); 

     dbCommand.ExecuteNonQuery(); 

     dbConnection.Close(); 

    }

來源

2017-05-29 John Vinson

您在'WHERE'之前有一個逗號。我投票結束這些只是拼寫錯誤。 –

爲了避免這種討厭的語法錯誤，不構建（串連）從大塊的查詢，使用逐字串把查詢作爲單，可讀字符串：

string sqlStmt = 
     @"UPDATE users 
      SET userName = @username1, 
       favProgram = @favprogram1, 
       city = @city1, 
       leastFavProgram = @leastfavprogram, 
       dateComplete = @datecomplete -- <- no comma ',' should be here 
     WHERE (users.userID = @id)";

這裏有一個簡單的開發過程：打開SQL編輯器，編寫正確的查詢然後把它（複製+粘貼）到@""

來源

2017-05-29 15:00:28

試圖發現語法錯誤

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