关联其它表进行update数据

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update DY_GUIDE set DY_GUIDE.TRAVELID=DMS_TRAVEL_AGENCY.ID
From DY_GUIDE
LEFT JOIN DMS_TRAVEL_AGENCY on DMS_TRAVEL_AGENCY.CHINESE_NAME=DY_GUIDE.WORKUNIT
where DMS_TRAVEL_AGENCY.PID > 0 and DMS_TRAVEL_AGENCY.CHINESE_NAME is not null and DMS_TRAVEL_AGENCY.CHINESE_NAME != ''
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