这是我的ms sql 语句，想问问高手如何优化 才能避免数据库死锁。
sql0="SELECT tbuser.username, tbnianji.nianji, tbbanji.banji, tbpower.power FROM tbuser INNER JOIN ((tbpower INNER JOIN tbbanji ON tbpower.banjiid = tbbanji.banjiid) INNER JOIN tbnianji ON tbpower.nianjiid = tbnianji.nianjiid) ON (tbuser.banji = tbbanji.banji) AND (tbuser.nianji = tbnianji.nianji) WHERE (((tbuser.username)='"&username&"'));"
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Microsoft OLE DB Provider for ODBC Drivers 错误 '80004005'
[Microsoft][ODBC SQL Server Driver][SQL Server]事务（进程 ID 58）与另一个进程已被死锁在 lock 资源上，且该事务已被选作死锁牺牲品。请重新运行该事务。
/kaoshi.asp，行 190
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建议你使用table hint -- WITH (NOLOCK), 如果允许read uncommitted的话