Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Introduction Primary indexing is a crucial component of database management systems as it greatly enhances the efficiency of retrieving data. Its main objective is to establish a primary key and index. Which in turn enables quick and precise searches. By assigning a unique identifier to each record and creating an index. Primary indexing permits rapid access to specific data. Not only does it improve the overall performance of the system but it also facilitates efficient operations such as record insertion and updates while minimizing disk input/output operations. In this era of digital advancements primary indexing is an essential ... Read More
An algorithm is defined as a finite set of instructions that, if followed, performs a particular task. All algorithms must satisfy the following criteria - Input An algorithm has zero or more inputs, taken or collected from a specified set of objects. Output An algorithm has one or more outputs having a specific relation to the inputs. Definiteness Each step must be clearly defined; Each instruction must be clear and unambiguous. Finiteness The algorithm must always finish or terminate after a finite number of steps. Effectiveness All operations to be accomplished must be sufficiently basic that they can be ... Read More
Introduction This article discusses the printing of prime numbers between two given values using PL/SQL. It emphasizes the importance of efficiency, precision, readability, maintainability, and error handling in software development. Optimized algorithms and data structures are employed to efficiently identify prime numbers. The use of meaningful variable names, proper indentation, and comments enhances code comprehension and adheres to coding best practices. Error handling and validation are crucial for producing reliable software solutions. The article highlights that there is an infinite number of prime numbers, underscoring the need for efficient algorithms. The focus is on providing a comprehensive and engaging ... Read More
Introduction In the age of technology we live in today. Preserving our personal information and maintaining our privacy has become an urgent concern. Our digital footprints encapsulate valuable information which can be leveraged by opportunistic entities solely for their own gain; inevitably triggering concerns regarding the safeguarding of our privacy rights and personal records. Just like an ecosystem needs preservation for its longevity. Protecting our digital footprints from external threats is crucial. The consequences of unregulated access to personal data can have serious implications such as targeted advertising and identity theft. It has undeniably become a matter of utmost importance ... Read More
Overview For organizations grappling with database unavailability issues there are considerable challenges that can impact their operational efficiency as well as financial outcomes not to mention the importance of having access to real time information. Given that databases function as repositories for important data any delay or inability in accessing this crucial information can result in far reaching consequences. Operational efficiency gets hampered when employees lack access to necessary data resulting in diminished productivity and frustrated customers. Financial implications include missed chances of generating revenue. Costs associated with repairs or upgrades. And long-term harm to a companys reputation and ... Read More
Tossing a coin is flipping a coin into the air and letting it fall back down. When you toss a coin, it's like a game where you can choose heads or tails, and the side that lands facing up is the result. This method is used when we want to make decisions or settle things randomly. Problem Statement Create a Java program to simulate the flipping of a coin 10 times, recording the number of times the result is "heads" and "tails". Output Chances = 10 Heads: 3 Tails: 7 Algorithms Step-1: Create an instance of the "Toss" ... Read More
Overview Production databases are crucial for storing and retrieving data in organizations. SQL queries are essential for efficiently retrieving specific information from these databases. The article aims to equip readers with practical knowledge for working with production databases using SQL queries. Understanding SQL Queries and Relational Databases Relational databases provide a structured framework for organizing and storing data efficiently. Data modeling techniques, including normalization, help in designing effective databases. Understanding these concepts is essential for writing SQL queries that retrieve information accurately and efficiently from complex databases. Let’s dive into a few real world examples − Example 1 Creating ... Read More
To remove CSS property using JavaScript, it can be helpful in various aspects like removing unnecessary style property, increase the performance, can be easily maintained and and debugging becomes easier. In this article we are having a div element and in some approaches p element on which some CSS properties have veen applied. Our task is to remove applied CSS property using JavaScript. Approaches to Remove CSS property using JavaScript There are various ways to remove CSS property using JavaScript, here is a list of approaches with step wise explaination and complete example codes. Using ... Read More
Hoverable dropdown is dropdown that opens when we hover on that dropdown. This kind of dropdown are mostly used on header menu. If the user hover over on any element of the header menu then it will automatically open and render the content of that dropdown. Steps to Create Hoverable Dropdown Before proceeding to create a hoverable dropdown we will create a dropdown structure first using HTML. Step 1 - Add HTML: Here we will create dropdown structure for that we can use , or any element. here in this article we will use the button element. ... Read More
The problem stated that we have to add two properties of the JSON object and count its occurrences. For example we have name and age properties in JSON then group them in a single property and count their occurrences. What is JSON? JSON (Javascript Object Notation) is lightweight data to transfer between devices. It is human readable and writable data. JSON is in the form of key-value pairs. Keys are strings to define values. In JSON each entry is separated by a semicolon. For example - {“name” : “Peter”}, in this example name is a key and Peter ... Read More