SQL 批量修改一個字段的值爲另外一個字段的值

1 SELECT createTime,create_time FROM ali_ons_topic WHERE state=2 AND create_time BETWEEN '2016-07-25 14:30:00' AND '2016-07-25 15:20:28'; 2 UPDATE ali_ons_topic SET create_time=createTime WHERE state=

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