SQL Server:查询执行中的对象名称无效 [英] SQL Server: invalid object name in query execution

问题描述

我正在尝试执行Insert语句，但始终收到无效的对象名称错误.

I'm trying to execute an Insert statement, but keep getting a Invalid object name error.

这是我的代码:

public string addNewComment(int userID, int pageID, string title, string comment)
{
    string query = "INSERT INTO dbo.nokernok_kommentarer (userID, pageID, commentTitle, comment) " +
    "VALUES ("+ userID +", "+ pageID +", '"+ title +"', '"+ comment +"')";

    adapter.InsertCommand = new SqlCommand(query, connection);

    //ExecuteNonQuery retuens number of rows affected
    int numRows = adapter.InsertCommand.ExecuteNonQuery();
    return numRows.ToString();
}

这是我的错误消息:

System.Data.SqlClient.SqlException:无效的对象名称'dbo.nokernok_kommentarer'.在System.Data.SqlClient.SqlConnection.OnError(SqlException例外，布尔值breakConnection)位于System.Data.SqlClient.SqlInternalConnection.OnError(SqlException例外，布尔值breakConnection)位于System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObjectstateObj)在System.Data.SqlClient.TdsParser.Run(RunBehaviorrunBehavior，SqlCommand cmdHandler，SqlDataReader dataStream，BulkCopySimpleResultSetbulkCopyHandler，TdsParserStateObjectstateObj)在System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(字符串methodName，布尔异步)，位于System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult结果，字符串methodName，布尔值sendToPipe)System.Data.SqlClient.SqlCommand.ExecuteNonQuery()在development.DAL.nokernokDAL.addNewComment(Int32userID，Int32 pageID，字符串标题，字符串注释)中C:\ Inetpub \ wwwroot \ naaf \ DAL \ nokernok.cs:line49

System.Data.SqlClient.SqlException: Invalid object name 'dbo.nokernok_kommentarer'. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at development.DAL.nokernokDAL.addNewComment(Int32 userID, Int32 pageID, String title, String comment) in C:\Inetpub\wwwroot\naaf\DAL\nokernok.cs:line 49

有人可以帮我弄清楚为什么我会收到此错误吗?

Can anyone help me figure out why I get this error?

更新

我应该使用正确的数据库，因为以下查询有效:

I should be using the correct database, because the following query works:

    public DataSet getSchools(string countyCode)
    {
        DataSet ds = new DataSet();
        string query = "SELECT * FROM nokernok_skoler WHERE kommunekode LIKE '" + countyCode.Substring(0, 2) + "%' ORDER BY enhetsnavn";
        adapter.SelectCommand = new SqlCommand(query, connection);
        adapter.Fill(ds);
        return ds;
    }

我的连接字符串如下:

SqlConnection connection = new SqlConnection();
SqlDataAdapter adapter = new SqlDataAdapter();

// class constructor
public nokernokDAL()
{
    connection.ConnectionString = EPiServer.Global.EPConfig["EPsConnection"].ToString();
    connection.Open();
}

推荐答案

您可能在错误的数据库中.在连接字符串中包含初始目录:

You're probably in the wrong database. Include an initial catalog in your connection string:

Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername; ...
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^

或指定一个三部分名称:

Or specify a three part name:

INSERT INTO myDataBase.dbo.nokernok_kommentarer
            ^^^^^^^^^^

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