In this video you will understand the use of unix command for daily dba life. you will find this command useful while while working on dba environment. 1. To Cleanup trace files more than n days old $ find $DBA/$ORACLE_SID/bdump/*.trc -mtime +n -exec rm {} \; 2. To get the value of all environment variables. …
During the class you will go through the following hadoop contents. Linux (Ubuntu/Centos) – Tips and Tricks Introduction to Big Data and Hadoop Hadoop ecosystem concepts Hadoop MapReduce concepts and features Hive concepts Oozie workflow concepts Sqoop Data Ingestion Flume Agents Real Time tools like Hue, Putty, FileZilla, Cloudera Manager Real Time Projects Hadoop Cluster …
Apache Spark SQL is a Spark module to simplify working with structured data using DataFrame and DataSet abstractions in Python, Java, and Scala. These abstractions are the distributed collection of data organized into named columns. It provides a good optimization technique. Using Spark SQL we can query data, both from inside a Spark program and …