資料庫連結失敗!

SELECT TOP 1 HN_Title, HN_From, HN_Source, HN_Date, HN_Content FROM LY_HotNews WHERE HN_Serial = 539 AND HN_Available = 1 AND HN_ON = 1 ORDER BY HN_SortNumber DESC

System.Data.OleDb.OleDbException: Could not use ''; file already in use. at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.OleDb.OleDbConnection.Open() at ccioo.Data.DB.ExecuteReader(String myQuery)