What is Pig used for in Hadoop?
Table of Contents
What is Pig used for in Hadoop?
Pig is a high level scripting language that is used with Apache Hadoop. Pig enables data workers to write complex data transformations without knowing Java. Pig’s simple SQL-like scripting language is called Pig Latin, and appeals to developers already familiar with scripting languages and SQL.
What is Pig and its uses?
Pigs are found and raised all over the world, and provide valuable products to humans, including pork, lard, leather, glue, fertilizer, and a variety of medicines. Most pigs raised in the United States are classified as meat-type pigs, as they produce more lean meat than lard, a fat used in cooking.
Is Pig part of Hadoop?
Pig operates on the Hadoop platform, writing data to and reading data from the Hadoop Distributed File System (HDFS) and performing processing by means of one or more MapReduce jobs. Apache Pig is available as open source.
What is Pig in big data computing?
Apache Pig is an abstraction over MapReduce. It is a tool/platform which is used to analyze larger sets of data representing them as data flows. Pig is generally used with Hadoop; we can perform all the data manipulation operations in Hadoop using Pig.
What is pig in oil and gas?
The pig is a cleaning device that is pumped through the pipeline under pressure. Thus, contaminations are conveyed out of the piping. In the oil and gas industry, usually pipelines with large diameters are in use. There, the pigging technology is not only needed for cleaning tasks.
What are features of pig?
The Features of Apache Pig are as follows,
- Rich set of operators. Apache pig has a rich collection set of operators in order to perform operations like join, filer, and sort.
- Ease of Programming.
- Optimization opportunities.
- Extensibility.
- User Define Functions (UDF’s)
- Handles all types of data.
- ETL (Extract Transform Load)
What is pigging and Decoking?
USA DeBusk offers pigging and decoking services for refining and chemical processing applications. This mechanical cleaning service removes fouling that accumulates on the inner walls of furnace coils, boilers and piping systems.
What is pig launching?
Procedures. Pig launchers are used to launch the pig into the pipeline, and pig receivers are used to receive the pigs after they have made a successful run. The choice of these pig traps will depend on the type of pig to be run and pipeline design conditions.
What is the difference in Pig and SQL?
Apache Pig Vs SQL Pig Latin is a procedural language. SQL is a declarative language. In Apache Pig, schema is optional. We can store data without designing a schema (values are stored as $01, $02 etc.)