Daily Archives: July 17, 2015


Real Time Hadoop Interview Questions from Various interviews Hive – Where do you use Internal or Managed table? What scenarios? In your resume, what do you mean by, “monitoring & managing MapReduce jobs”? Explain? Interviewer’s Project: How to modify the RDBMs’ Nested SQL queries into Hadoop framework using Pig. Sqoop: […]

Real Time Hadoop Interview Questions From Different Readers


Hadoop Testing Tools MRUnit  – Java framework that helps developers unit test Hadoop Map reduce jobs. Mockito –  Java Framework, similar to MRUnit for unit testing Hadoop Map reduce jobs. PigUnit – Java framework that helps developers unit test Pig Scripts. HiveRunner – An Open Source unit test framework for hadoop hivequeries based […]

Hadoop Testing Tools


This post is about basic String Functions in Hive with syntax and examples. Creating Table in HIVE: [crayon-58828a7cdbe77190123363/] String Functions and Normal Queries: [crayon-58828a7cdbe81524658922/] ASCII ASCII Function converts the first character of the string into its numeric ASCII value. [crayon-58828a7cdbe85153961014/]  CONCAT The CONCAT function concatenates all the strings/columns. [crayon-58828a7cdbe88734800256/] [crayon-58828a7cdbe8b127219715/] [crayon-58828a7cdbe8d089720142/] […]

String Functions in Hive