Apache Pig

    • Apache Pig is used to creating programs that runs on Apache Hadoop.
    • Pig Latin is a language.
    • It execute in Hadoop jobs,MapReduce, Apache Tez, or Apache Spark
Big Data
The programming from the Java MapReduce idiom into a notation which makes MapReduce high level, similar to SQL for relational database management systems.
  • The user-defined functions (UDFs) called Pig Latin user can write in Java, Python, JavaScript, Ruby or Groovy.
Creating your first pig script

Advantages of Pig

  • Reusing the code
  • Quick development
  • Less lines of code
  • Type checking and Schema etc.

Simple program for pig:

  • Map: The data element consisting the data type chararray where element has pig data type include complex data type
  • Example- [city’#’bang’,’pin’#560001].
  • The city and pin are data element mapping the values here.

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