Clustered by and Sorted by dividing the keys into several buckets and then sorting the buckets. Cluster by guarantees that each of the N reducers
Author: SHAFI SHAIK
Hi, this is Shafi Shaik, Microsoft Solutions Specialist in Data platform as well as in Data Management & Analytics. I am a certified associate in Oracle SQL*Plus and extensively trained in MongoDB Administration. My current role is Database administration with hands-on expertise in almost all relational databases namely Microsoft SQL Server, MySQL, Oracle SQL*Plus, PostGreSQL & Teradata. I'm also specialized in database development, warehousing, traditional data analysis and Big Data analysis.
SQOOP Complete Tutorial Part-10
In this session, we’ll work with staging tables while exporting data from HDFS to MySQL. Staging tables are the tables that hold the data temporarily.
SQOOP Complete Tutorial Part-9
Previous articles covered how to move data from a relational database to HDFS and Hive. We’ll now look at how to get the data out
Cluster By Clause in Hive
CLUSTER BY and DISTRIBUTE BY are used mainly with the Transform/Map-Reduce Scripts. However, it might be beneficial in SELECT statements if the output of a
NoSQL – MongoDB – Introduction
NoSQL – Introduction:When we talk about something, we frequently compare it to something else to make it easier to grasp. We bring up the subject
CDH and HDP Legacy Virtual Machines
Beginners can choose from older versions of CDH (from Cloudera) and HDP (from Horton Works) fully functional virtual machines to study and practice big data
Big Data & SQL 