Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Cassandra is developed by the Apache Software Foundation. It is a NoSQL database management system. Cassandra utilizes a wide column store to efficiently handle large volumes of data across multiple commodity servers. It is an open-source platform. It offers high availability without a single point of failure. Cassandra is written in Java. The distributed architecture of Apache Cassandra allows for scalability, fault tolerance, and high availability. Nodes are an essential concept in Apache Cassandra's distributed architecture. In this article, we will discuss an overview of nodes in Apache Cassandra, their types, operations, and adding/removing nodes in Apache Cassandra. Node in ... Read More
The concept of deferred update in database management systems (DBMS) involves postponing the actual updates to the database on disk until a transaction successfully completes its execution and reaches the commit point. During the execution of a transaction, updates are only recorded in the log and in the cache buffers. Once the transaction reaches its commit point and the log is forcefully written to disk, the updates are then recorded in the database. If a transaction fails before reaching its commit point, there is no need to undo any operations because the database on disk remains unaffected. As a result, ... Read More
New storage systems are designed to handle large volumes of data. These new storage systems provide reliable, scalable, and cost-effective storage solutions. In this article, we will discuss three of the most significant recent developments in storage systems Storage Area Networks Storage Area Network (SAN) is a high-speed network of online storage peripherals. These are configured as nodes to allow for flexible attachment and detachment from servers. SANs have become essential for organizations with high storage demands and are preferred over RAID systems as they offer many-to-many connectivity and better isolation capabilities. SAN providers supply their own proprietary topologies. ... Read More
Generating strings that include characters and numbers is a common task in programming. Java provides several ways to generate such strings, and in this article, we will discuss some of the ways to generate strings using characters and numbers in Java. We will cover different approaches to generate random strings and string permutations using characters and numbers. Approach 1: Using Random Class to Generate Random Strings The Random class in Java provides a convenient way to generate random numbers and characters. We can use this class to generate random strings by generating a sequence of random numbers and mapping them ... Read More
Data is the lifeline of businesses. With the increasing amount of data being generated and stored, businesses need a reliable and efficient storage solution. One such solution is Network Attached Storage (NAS). In this article, we will discuss the role of Network Attached Storage in Database Management Systems (DBMS), its components, advantages and disadvantages, and use cases. Network Attached Storage in DBMS As we create more and more digital data, we need storage solutions that are fast economically. Network Attached Storage (NAS) devices are a type of storage that are used for this purpose. These are like servers, but ... Read More
Introduction Radiation can be defined as a form of electromagnetic wave that can travel through a vacuum or any other medium. They have both particles as well as wave nature. Since they can travel in a vacuum so, they can travel through space and can reach us and can even penetrate various substances including the human body. Radiations can be natural like cosmic rays or can be man-made like X-rays. Long-term exposure to radiation can be lethal and can even induce cancer in humans therefore, it is very important to protect ourselves from such radiation which can be lethal, ... Read More
Partition By clause can be used to improve query performance. It reduces storage requirements, and improves data manageability. By partitioning a large table, queries that access only a small subset of the data can be executed more quickly. Partitioning can also improve backup and restore times. In this article, we will discuss the Partition By clause in MySQL with syntax and various examples. Introduction The purpose of a PARTITION BY clause is to group rows of a table into separate partitions. This is particularly helpful when performing calculations on specific rows within a partition using other rows from the same ... Read More
Normalization is a process of organizing data in a database to reduce redundancy and improve data consistency. Primary keys are really important in organizing information in a database. They help to make sure that every row in a table has a unique identification so that nothing gets mixed up or lost. In this article, we will discuss different normal forms based on primary keys and their importance in ensuring data consistency. Introduction Let's discuss how we make sure that data in databases is organized properly. We use something called "functional dependencies" to help us do this. Each table in ... Read More
Introduction It was earlier described by Beadle and Tatum that a gene is the part of DNA that determines or codes the primary sequence of some final gene product which can be an enzyme, a polypeptide, or an RNA. On the other hand, as the name suggests, pseudogene or false genes are also segments of DNA but unfortunately do not code for any protein. Since they are of no use in the DNA they are sometimes referred to as Junk genes. They have structural resemblance and are also believed to be derived from functional genes, but they do not ... Read More
Introduction Living organisms produce a variety of proteins for various functions. The type of protein to be produced depend on the function it has to perform, the need of the protein, and its interaction with other proteins. This entire set of proteins that are produced in a living system is called Proteome. The study of Proteome is referred to as Proteomics. Proteomes are important as they are the building blocks of the living system that they form the structural and functional entity of cellular life. The study of proteomics is important as it provides a better understanding of the proteins, ... Read More