08 2016 档案

Unable to load native-hadoop library for your platform

摘要：#HADOOP VARIABLES STARTexport JAVA_HOME=/home/yang/jdk1.7.0_80export HADOOP_HOME=/home/hadoop/hadoop-2.7.2export PATH=$PATH:$HADOOP_HOME/binexport PAT 阅读全文

posted @ 2016-08-24 11:39 南岗V哥 阅读(152) 评论(0) 推荐(0)

查出重复的数据---------oracle

摘要：select chcod, count(1) from a group by chcod having count(1) > 1 阅读全文

posted @ 2016-08-17 10:26 南岗V哥 阅读(110) 评论(0) 推荐(0)