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“The more you praise and celebrate your life, the more there is in life to celebrate.” - Oprah Winfrey 阅读全文
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需要参考: [Oracle]Recovering the primary database's datafile using the physical standby, and vice versa (Doc ID 453153.1) 阅读全文
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为了调查Oracle 的故障,可以通过设置event ,来了解详细的状况。方法如下:■ 如果使用 SPFILE, To enable it:1. Check the current event setting status:SQL> show parameter event;2. Add an ev 阅读全文
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[Oracle]为何Archivelog 没有马上被删除客户设置了 Archivelog 的 deletion policy 是 CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON ALL STANDBY; 所以,他认为只要在Standby 端提交了 阅读全文
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外部文件导入到Hive的例子: [training@localhost ~]$ cd ~[training@localhost ~]$ pwd/home/training[training@localhost ~]$ [training@localhost ~]$ vim customers.txt 阅读全文
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[Spark][Hive]Hive的命令行客户端启动: [training@localhost Desktop]$ chkconfig | grep hive hive-metastore 0:off 1:off 2:off 3:on 4:on 5:on 6:offhive-server2 0:of 阅读全文
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[Spark][python]以DataFrame方式打开Json文件的例子: [training@localhost ~]$ cat people.json{"name":"Alice","pcode":"94304"}{"name":"Brayden","age":30,"pcode":"943 阅读全文
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PageRank 程序: file contents: page1 page3page2 page1page4 page1page3 page1page4 page2page3 page4 def computeContribs(neighbors,rank): for neighbor in ne 阅读全文
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[Python]Python 使用 for 循环的小例子: In [7]: for i in range(5): ...: print "xxxx" ...: print "yyyy" ...: xxxxyyyyxxxxyyyyxxxxyyyyxxxxyyyyxxxxyyyy 阅读全文
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Spark Python 索引页 为了查找方便,建立此页 RDD 基本操作: [Spark][Python]groupByKey例子 阅读全文