Database Tutorials
The database is an organized collection of related data or information that is treated as a single unit. The main purpose of the database is to store, collect, and retrieve…
Big Data Tutorial
“Big data” refers to datasets whose size is beyond the ability of typical database software tools to capture, store, manage, and analyze. Here the size of the data is subjective…
What is MAC Address?
MAC or Media Access Control address is a hardware address that is assigned to a network interface controller/(NIC) that is used in the same network segment. They are mostly used…
What are Linux Processes?
What is a Process? A process is an active or a running instance of a program. When we run a command in Linux using a command line or using a…
What is Heartbeat in Hadoop Framework?
What is HeartBeat? In Hadoop framework heartbeat is a signal that is sent by DataNode to NameNode and also by Task Tracker to the Job tracker. DataNode sends the signal…
What is Speculative Execution in Hadoop?
Speculative execution is a way of coping with individual machine performance. There might be many machines in large clusters with a hundred or thousands of machines, that are not performing…
What is ETL (Extract, Transform and Load) Process?
Understanding ETL (Extract, Transform, and Load) ETL is an abbreviation of the Extract, transform, and load. It is a process that is used to extract data from various sources and…
What is SQL Alias?
What does alias mean in SQL? SQL (Structured Query Language) aliases are used for giving a temporary name to a column or a table for the purpose of a particular…
What is an Edge Node? Hadoop Cluster, Database, and Applications
What does Edge Node Mean? An edge node is a computer that provides an interface for communicating with other nodes in case of cluster code. Edge nodes are also called…
Important Big Data Terms Everyone Should Know
When someone works with Big data, they need to have knowledge of many concepts and terms. I will introduce some of the important data terms everyone working with Big data should know.
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