Big Data & SQL

Apache Pig Architecture

Apache Pig is a high-level framework for developing Hadoop-based apps. Pig Latin is the name of the platform’s language. Pig’s Hadoop jobs can be run

You can apply an alias to tables, columns, or column expressions when you enter their names in a query. When making further references to the

In OLTP databases, DELETE is one of the most commonly used DML commands. When it comes to OLAP databases, however, DELETE is used less frequently.

In OLTP databases, UPDATE is one of the most commonly used DML commands. When it comes to OLAP databases, however, UPDATE is used less frequently.

The Impala SQL dialect has a number of common features as well as certain additions for Big Data use cases such as data loading and

In Apache Impala, similar to Hive, the LOAD command can be used to import data into tables. The source files might be in text, csv,

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