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The readers-writers problem relates to an object such as a file that is shared between multiple processes. Some of these processes are readers i.e. they only want to read the data from the object and some of the processes are writers i.e. they want to write into the object.The readers-writers problem is used to manage synchronization so that there are no problems with the object data. For example - If two readers access the object at the same time there is no problem. However if two writers or a reader and writer access the object at the same time, there ... Read More
The all pair shortest path algorithm is also known as Floyd-Warshall algorithm is used to find all pair shortest path problem from a given weighted graph. As a result of this algorithm, it will generate a matrix, which will represent the minimum distance from any node to all other nodes in the graph.At first the output matrix is same as given cost matrix of the graph. After that the output matrix will be updated with all vertices k as the intermediate vertex.The time complexity of this algorithm is O(V3), here V is the number of vertices in the graph.Input − ... Read More
We can convert an array to arraylist using following ways.Using Arrays.asList() method - Pass the required array to this method and get a List object and pass it as a parameter to the constructor of the ArrayList class.Collections.addAll() method - Create a new list before using this method and then add array elements using this method to existing list.Iteration method - Create a new list. Iterate the array and add each element to the list.Example import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.List; public class Tester { public static void main(String args[]) { String[] array ... Read More
A schedule is serialized if it is equivalent to a serial schedule. A concurrent schedule must ensure it is the same as if executed serially means one after another. It refers to the sequence of actions such as read, write, abort, commit are performed in a serial manner.ExampleLet’s take two transactions T1 and T2, If both transactions are performed without interfering each other then it is called as serial schedule, it can be represented as follows −T1T2READ1(A)WRITE1(A)READ1(B)C1READ2(B)WRITE2(B)READ2(B)C2Non serial schedule − When a transaction is overlapped between the transaction T1 and T2.ExampleConsider the following example −T1T2READ1(A)WRITE1(A)READ2(B)WRITE2(B)READ1(B)WRITE1(B)READ1(B)Types of serializabilityThere are two types ... Read More
Process Control Block is a data structure that contains information of the process related to it. The process control block is also known as a task control block, entry of the process table, etc.It is very important for process management as the data structuring for processes is done in terms of the PCB. It also defines the current state of the operating system.Structure of the Process Control BlockThe process control stores many data items that are needed for efficient process management. Some of these data items are explained with the help of the given diagram −The following are the data ... Read More
In this article, we are going to study Rename and Alias. Both these have their specific role when we talk in terms of DBMS. Renaming and aliases to the elements of the database provide a layer of abstraction and make the attributes of the relation presentable for the viewer. Mostly, Database store crucial information the concepts of renaming and aliasing plays an important role in representing data with efficiency. Let's gain an understanding of these concepts, their syntax, and the difference between them. What is Alias? Alias is an alternative name given to a column in the database Management System. This practice ... Read More
When faced with knowledge gaps, our innate reaction is to utilize search engines as a source of information. This is because we're well aware that the answers to our queries can be found there; the key lies in using accurate keywords for our searches. Both Database Queries and Keyword Queries are revolved around the retrieval of information. This article endeavors to assist you in comprehending the distinction between these two notions. Let's explore and gain an understanding of these concepts one by one. What is Keyword Queries? They are used to get information from the web. In this concept, the ... Read More
As individuals, we often save our data on devices like laptops and phones, but rarely do we consider the databases that underlie these storage systems. Databases are the place where organizations can easily store their data. DBMS is used to manage the database. In this article, we will study the two specific databases NoSQL and Traditional Database. However, their designs diverge, resulting in distinct approaches to data storage and retrieval. Let's explore the below article which gives you depth of understanding about the key differences in each of them. What is a NoSQL Database? When we say NoSQL it sounds ... Read More
Introduction In the energy industry, effectively managing customer data is vital for delivering personalized services and enhancing customer satisfaction. Salesforce, a leading customer relationship management (CRM) platform, provides powerful solutions for energy companies to streamline their customer data management processes. This article delves into the various aspects of using Salesforce to efficiently manage customer data in the energy sector, resulting in improved operational efficiency and an enhanced customer experience. The Importance of Customer Data Management in the Energy Industry Understanding Customer Needs and Preferences In the energy industry, gaining a deep understanding of customer needs and preferences is essential for delivering tailored energy solutions. ... Read More
Introduction In today's fast-paced business environment, sales teams are constantly seeking ways to improve their efficiency and productivity. With the rapid advancement of technology, artificial intelligence (AI) and machine learning (ML) have emerged as powerful tools to automate and streamline sales tasks. Salesforce, a leading customer relationship management (CRM) platform, has integrated AI and ML capabilities into its suite of products, enabling sales professionals to optimize their workflows and drive better results. In this article, we will explore the intersection of Salesforce and machine learning and how this integration is revolutionizing the sales process. Understanding Machine Learning Machine learning is a subset of AI ... Read More