UPDATE crawl_weibo_data t1, lz_temp_channel t2 SET t1.channel_unique_id = t2.channel_unique_id WHERE t1.channel=t2.channel AND t1.pub_time > 1551369600000 AND t1.pub_time
< 1556640000000 AND t1.channel_unique_id = 'DMR';
UPDATE crawl_weibo_data t1, lz_temp_channel t2 SET t1.channel_unique_id = t2.channel_unique_id WHERE t1.channel=t2.channel AND t1.pub_time > 1551369600000 AND t1.pub_time
< 1556640000000 AND t1.channel_unique_id = 'DMR';
本文标题:update t1,t2
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