Dapper 查询表是否存在的问题

     internal class Table
    {
        public string COUNT { get; set; }
    }

 lock (DbBase.LockDb)
            {
                using (DbBase db = new DbBase())
                {
                    Table Msg=null;
                    Msg = db.Conn.Query<Table>("select COUNT(*) from sqlite_master where [type]='table' and [name]=@name", new { name = "DBVersion" }).ToList().FirstOrDefault(); 
                                        Console.Write(Msg.COUNT);
                }
            }

这写的不对嘛？怎么查询为空

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