Found 6723 Articles for Database

Introduction PostgreSQL is a powerful, open-source object-relational database system that is widely used for enterprise-level applications. It boasts extensive features and capabilities, including support for advanced data types, scalability, reliability, and security. With PostgreSQL, users can store vast amounts of structured data with ease. PostgreSQL is one of the most popular database management systems available today. It was first released in 1989 as an open-source project and has since become the go-to choice for many organizations worldwide due to its robustness, flexibility, and scalability. Being an open-source project means that it is free to use and can be modified by ... Read More

Introduction Redis is a widely used open-source, in-memory data structure store, used as a database, cache, and message broker. It is designed to handle a large set of data structures with high performance and flexibility. Redis Cluster is a distributed implementation of Redis that provides high availability and scalability through partitioning the dataset across multiple nodes. Prerequisites Understanding of Kubernetes Architecture Before diving into deploying Redis Cluster on Kubernetes, it is crucial to have a basic understanding of Kubernetes architecture. This involves knowing the main components of a Kubernetes cluster, such as nodes, pods, and services. Understanding how these ... Read More

Introduction RabbitMQ is a messaging broker that allows different applications to communicate with each other by sending and receiving messages. It provides a reliable and scalable way to handle messaging between systems. On the other hand, Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. With Kubernetes, you can easily deploy and manage your applications in a cloud-native environment. Preparing for Deployment Setting up a Kubernetes cluster Before deploying RabbitMQ on Kubernetes, it is necessary to set up a Kubernetes cluster. A Kubernetes cluster is made up of one or more ... Read More

Introduction MongoDB is a popular, open-source NoSQL database that is designed to store and manage unstructured data. It provides high performance, scalability, and flexibility for modern applications. On the other hand, Docker is a containerization platform that enables developers to package their applications and dependencies into portable containers that can run consistently across different environments. It simplifies the software delivery process by providing a lightweight, isolated runtime environment for applications. Setting up the Environment Installing Docker on the local machine Before setting up MongoDB, it's important to install Docker on your local machine. Docker is a containerization platform ... Read More

Introduction When it comes to cloud computing, there are two primary options: virtualized servers and bare metal servers. A virtual server runs on top of a hypervisor, which is essentially a layer of software that sits between the physical hardware and the operating system. In contrast, a bare metal server runs directly on the physical hardware without any intervening layers. A bare metal cloud server combines the benefits of both models. It provides dedicated hardware resources like a traditional bare metal server, but it's provisioned and managed through an API or web interface like a virtual server in ... Read More

In this article, we will understand the concept of Kerberos and Radius and the difference between them. The three main components of Kerberos are the computer that contains the database, the ticket−granting server, and the authentication server. RADIUS does not store data in a specific format but rather talks with a central database. Kerberos is used to verify the identity of users and services before allowing them to access sensitive information. The verification methods used by the application layer protocols of Kerberos are ticket−based encryption methods. What is Kerberos? Kerberos comes under the application layer which is the topmost layer ... Read More

Long Polling and WebSocket are both technologies used for real−time data transfer between a client and a server. They provide a way for the client to receive updates from the server in real−time, allowing for more interactive and responsive web applications. The main difference between them is that long polling sends the request to the client or receiver and waits until a response is received which means one−way communication. On the other hand, WebSockets are used to send the data in both directions simultaneously. What is Long Polling? In long polling, until it has information to send back to the ... Read More

Dataset.from_tensors and Dataset.from_tensor_slices are methods in the TensorFlow library that are used to create datasets. Dataset.from_tensor creates a dataset from a single tensor whereas Dataset.from_tensor_slices creates data set by slicing a tensor along the first dimension. In this article, we will understand the difference between the two methods and how they are used in different use cases. from_tensor from_tensor_slices Creates a dataset from a single tensor Creates a dataset by slicing a tensor along the first dimension Useful for small datasets that can fit in memory Useful for large datasets that ... Read More

Hive was developed by Facebook. It is used for analytics and MapReduce jobs. It can read, write, and manage large datasets. Hive can replace traditional database operations. Hive uses indexing to make queries more efficient, and it can work with compressed data stored in the Hadoop ecosystem. In this article, we will discuss Dynamic Partitioning and operations on Dynamic Partition in Hive. Apache Hive Apache Hive is a warehousing system. It is used to perform operations on structured data. It is widely used for analytics and MapReduce jobs. Apache Hive provides functionality for reading, writing, and managing large datasets. One ... Read More

Oracle Label-Based Security (OLS) is a feature of the Oracle Database that provides fine-grained access control over sensitive data based on security labels. This feature enables organizations to enforce access control policies based on the sensitivity of the data rather than the traditional approach of user roles and privileges. In this article, we will discuss how Oracle Label-Based Security works and its benefits. Oracle Label-Based Security Oracle Label-Based Security works by assigning a security label to each row of data in a table. The label identifies the sensitivity level of the data, such as confidential, secret, or top secret. Each ... Read More