"A programming interface for programmers to create MapReduce jobs within Hadoop." (Jason Williamson, "Getting a Big Data Job For Dummies", 2015)
"A programming language designed to handle any type of data. Pig helps users to focus more on analyzing large datasets and less time writing map programs and reduce programs. Like Hive and Impala, Pig is a high-level platform used for creating MapReduce programs more easily. The programming language Pig uses is called Pig Latin, and it allows you to extract, transform, and load (ETL) data at a very high level. This greatly reduces the effort if this was written in JAVA code; PIG is only a fraction of that." (Benoy Antony et al, "Professional Hadoop®", 2016)
"An open-source platform for analyzing large data sets that consists of the following: (1) Pig Latin scripting language; (2) Pig interpreter that converts Pig Latin scripts into MapReduce jobs. Pig runs as a client application." (Oracle)
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