asp 求助！！！急急急 - Web 开发 / ASP

错误如下：
Microsoft OLE DB Provider for SQL Server 错误 '80040e14'  
第 1 行: '=' 附近有语法错误。  
/detail.asp，行 11
代码：
<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>
<!--#include file="Connections/con_bbs.asp" -->
<%

set Command1 = Server.CreateObject("ADODB.Command")
Command1.ActiveConnection = MM_con_bbs_STRING
Command1.CommandText = "UPDATE dbo.bbs_main SET hits =hits+1 where main_id ="&request("main_id")
Command1.CommandType = 1
Command1.CommandTimeout = 0
Command1.Prepared = true
Command1.Execute()

%>
真心求教！！！谢谢！！！{{----