通过ODBC执行SQL参数化StoredProcedure的 [英] Execute Parameterized SQL StoredProcedure via ODBC

问题描述

从C＃WinForms应用程序，我必须执行一个参数化存储过程MS SQL防爆preSS服务器上。数据库连接的工作原理，程序仍然可以正常工作，但我得到一个错误信息：

From within a C# WinForms app I must execute a parameterized Stored Procedure on a MS SQL Express Server. The Database Connection works, the Procedure works either, but I get an Error Message:

42000：缺少参数'@KundenEmail

42000: Missing Parameter '@KundenEmail'

虽然我敢肯定，我正确地添加参数。也许你们中的一些可以看看 - 我不知道该怎么寻找任何更多...

although I'm sure I added the parameter correctly. Maybe some of you could have a look - I don't know what to search for any more...

OdbcConnection ODBCConnection = new OdbcConnection();

try
{
    ODBCConnection.ConnectionString = ODBCConnectionString;
    ODBCConnection.Open();
}
catch (Exception DatabaseConnectionEx)
{
    if (ODBCConnection != null)
        ODBCConnection.Dispose();

    // Error Message

    return null;
}

OdbcParameter ODBCParameter = new OdbcParameter("@KundenEmail", OdbcType.NChar, 50);
ODBCParameter.Value = KundenEmail;

OdbcCommand ODBCCommand = new OdbcCommand("getDetailsFromEmail", ODBCConnection);
ODBCCommand.CommandType = CommandType.StoredProcedure;
ODBCCommand.Parameters.Add(ODBCParameter);

DataTable DataTable = new DataTable();

OdbcDataAdapter ODBCDatadapter = new OdbcDataAdapter(ODBCCommand);
ODBCDatadapter.Fill(DataTable);
ODBCDatadapter.Dispose();

ODBCConnection.Close();
ODBCConnection.Dispose();

这是我得到的错误信息：

This is the error message I get:

错误[4200] [微软] [ODBC SQL Server]将程序或方法       getDetailsFromEmail'预计'@ KundenEmail'参数，这       未提供。

ERROR [4200][Microsoft][ODBC SQL Server]The Procedure or method 'getDetailsFromEmail' expects the '@KundenEmail'-parameter, which was not supplied.

嗯，我错过了连接字符串

Ah, I missed the connection string

private static String ODBCConnectionString = "Driver={SQL Server};Server=TESTSRV\\SQLEXPRESS;Database=TestDatabase;";

任何想法？先谢谢了。

Any ideas? Thanks in advance.

推荐答案

嗯 - 我现在设法解决这个问题我自己，从MSDN文档编制一些帮助

Well - I now managed to solve the problem on my own, with some help from the MSDN-documentation.

正确的语句来执行存储过程通过ODBC如下：

The correct statement to execute a stored procedure via ODBC is as follows:

OdbcCommand ODBCCommand = new OdbcCommand("{call getDetailsFromEmail (?)}", ODBCConnection);
ODBCCommand.CommandType = CommandType.StoredProcedure;
ODBCCommand.Parameters.AddWithValue("@KundenEmail", KundenEmail);

不过 - 感谢您的帮助和Thorsten

Nevertheless - thanks for your help Thorsten.

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