big data

Hive DDL Commands Create Database Statement A database in Hive is a namespace or a collection of tables. hive> CREATE SCHEMA userdb;…

Hive DML Commands To understand the Hive DML commands, let’s see the employee and employee_department table first. LOAD DATA hive> LOAD DATA…

Hive Join Let’s see two tables Employee and EmployeeDepartment that are going to be joined. Inner joins Select * from employee join…

Hive Sort By vs Order By Hive sort by and order by commands are used to fetch data in sorted order. The…

HIVE Partitioning Table partitioning means dividing table into some parts based on values of a particular column like date or country, segregate…

Hive Commands Hive supports Data definition Language(DDL), Data Manipulation Language(DML) and User defined functions. Hive DDL Commands create database drop database create…

Apache Pig Installation In this section, we will perform the pig installation. Pre-requisite Java Installation – Check whether the Java is installed…

Apache Hive Installation In this section, we will perform the Hive installation. Pre-requisite Java Installation – Check whether the Java is installed…

Big Data Characteristics Big Data contains a large amount of data that is not being processed by traditional data storage or the…

HBase MemStore The MemStore is a write buffer where HBase accumulates data in memory before a permanent write. Its contents are flushed…