Month: February 2017

PIG QUICK NOTES: Pig latin – is the language used to analyze data in Hadoop using Apache Pig. A RELATION is outermost structure of Pig Latin data model. and it is bag where- -A bag is collection of Tuples -A tuple is an ordered set of fields -A field is a piece of data Pig Latin –Statements While processing data using Pig Latin, statements are the basic constructs. 1. These statements work with relations. They include expressions and schemas. 2. Every statement ends with a semicolon (;). 3. We will perform various operations using operators provided by Pig Latin, through statements. 4. Except LOAD and STORE, while performing all other operations, Pig Latin statements take a relation as input and produce another relation as output. 5. As soon as you enter a Load statement in the Grunt...