Question

我通过我的c＃代码在sql表中插入行，该代码调用了一个存储过程。

C＃代码：

SqlCommand myCommand = thisConnection.CreateCommand();
                myCommand.CommandText = "FederationUpdateCTRAndImpressionCountsForAllYPIds";
                myCommand.CommandType = CommandType.StoredProcedure;
                myCommand.Parameters.Add("@bid", SqlDbType.UniqueIdentifier);
                myCommand.Parameters.Add("@uid", SqlDbType.UniqueIdentifier);
                myCommand.Parameters.Add("@imp", SqlDbType.VarChar);
                myCommand.Parameters.Add("@ctr", SqlDbType.VarChar);

                while (myfederationReader.Read())
                {                      
                    myCommand.Parameters["@bid"].Value = myfederationReader["BusinessId"];
                    myCommand.Parameters["@uid"].Value = myfederationReader["UId"];
                    myCommand.Parameters["@imp"].Value = myfederationReader["Impression"];
                    myCommand.Parameters["@ctr"].Value = myfederationReader["CTR"];                    
                    rowsAffected = myCommand.ExecuteNonQuery();                        
                }

存储过程：

CREATE PROCEDURE [dbo].[FederationUpdateCTRAndImpressionCountsForAllYPIds]
    @bid uniqueidentifier,
    @uid uniqueidentifier,
    @imp varchar(255),
    @ctr varchar(255)
AS  BEGIN   
    UPDATE  BasicBusinessInformation
    SET     BasicBusinessInformation.CTR = @ctr , BasicBusinessInformation.Impression = @imp
    WHERE   BasicBusinessInformation.BusinessId = @bid AND  BasicBusinessInformation.UId = @uid 
    END

执行它时，会报告以下错误：

过程没有参数和参数提供

Answer 1

尝试清除命令参数

[C#] 
public bool ExportAndClear() {
SqlParameter[] myParamArray = new SqlParameter[myCmd.Parameters.Count - 1];
myCmd.Parameters.CopyTo(myParamArray, 0);
myCmd.Parameters.Clear();
return true;
}

Answer 2

尝试在触发此命令之前从阅读器获取数据像

1)Fetch data from reader and store in list or datatable
2)For loop on list or datatable
3)in for loop fire this command

Answer 3

尝试移动以下

SqlCommand myCommand = thisConnection.CreateCommand();
                myCommand.CommandText = "FederationUpdateCTRAndImpressionCountsForAllYPIds";
                myCommand.CommandType = CommandType.StoredProcedure;
                myCommand.Parameters.Add("@bid", SqlDbType.UniqueIdentifier);
                myCommand.Parameters.Add("@uid", SqlDbType.UniqueIdentifier);
                myCommand.Parameters.Add("@imp", SqlDbType.VarChar);
                myCommand.Parameters.Add("@ctr", SqlDbType.VarChar);

在while循环中，看看你是否得到不同的结果。

存储过程的SQL错误

3 个答案: