oracle 批量修改某个字段的值
http://topic.csdn.net/u/20101103/11/e63adf9a-1d65-487c-a694-4110275c55b1.html
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update tablename set colnumname=replace(colnum,'http://10.81.168.168:7002','http://127.0.0.1:9080')
