Introduction to the CentOS Jenkins installation tutorial Jenkins is an open-source software package for continuous software development. It is used to automate the build, test, delivery, and deployment parts of an application. Jenkins is based on Java and provides assistance in every part of the software development process. How do I install Jenkins on CentOS?…
Are you preparing for a SQL developer interview? Then you’ve come to the right place. This guide will help you improve your SQL skills, regain your confidence, and be ready for work! In this collection of SQL Common Interview Questions and Answers, you’ll find a collection of authentic interview questions from companies like Google, Oracle,…
An introduction to the collection of the best database management systems A database management system (DBMS) allows users to create, retrieve, update, and manage data in a database. A DBMS also ensures data security and reduces redundancy. What are the best database management systems? Which database management system is best? This article lists the 25 best database…
In recent years, with the gradual transformation of digital technology, trillions of bytes of data are generated every second. Some experts rightly say – “Data is the new oil!” ”。 User-generated data comes in many forms – this data is generated through social media browsing, binge-watching movies, shopping through online portals, online banking transactions, etc….
MongoDB is a cross-platform, document-oriented, non-relational (i.e., NoSQL) database program. It is an open-source document database that stores data in the form of key-value pairs. What is a MongoDB query? MongoDB queries are used to specify selection filters via query operators while retrieving data from a collection via the db.find() method. We can easily filter…
Introduce MySQL is a popular open-source database application that stores and structures data in a meaningful and easily accessible way. For large applications, the sheer volume of data can cause performance issues. How Do I Optimize a MySQL Database? This guide provides some tuning tips on how to improve the performance of your MySQL database. prerequisite…
The update() method updates the value in an existing document in the MongoDB collection. When you update a document, the values of the _id fields remain the same. By default, db.collection. update() method to update a single document. Include the option multi:true to update all documents that match a given query. This method can be used for a…
The insertMany() function is used to insert multiple documents into a collection. It accepts a series of documents to be inserted into a collection. Installation of the Mongoose module: File name :index.js Steps to run the program: The project structure will look like this: Make sure the mongoose module is installed with the following command: npm install…
This tutorial describes how to deploy PostgreSQL on Kubernetes PostgreSQL is a reliable and robust relational database system with ACID-compliant transactions. It’s designed to handle workloads of all sizes, making it ideal for personal use and large-scale deployments such as data warehouses, big data servers, or web services. Deploying PostgreSQL on Kubernetes creates a scalable…
Date and time types and functions in SQLite: SQLite is a relational database management system (RDMS) that is architected in a very simple way because it has no servers and stores data on the operating system of the local machine running it. SQLite supports different date and time features that can help manage dates and…
- 1
- 2