PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. It allows you to write procedural logic, such as loops, conditionals, and functions, directly into the SQL commands. This tutorial will guide you through the basics of PL/SQL with examples. Table of Contents Introduction to PL/SQL PL/SQL…
Web scraping is the process of extracting data from websites. Python provides powerful libraries like requests and BeautifulSoup that make it easy to scrape web pages. In this tutorial, we'll cover the basics of web scraping using Python. Prerequisites Basic knowledge of Python Installation of Python (3.x recommended) Installation of requests and BeautifulSoup libraries:…
Go, often referred to as Golang, is a powerful and efficient programming language created by Google. It's known for its simplicity, readability, and excellent support for concurrency. In this tutorial, we'll cover the basics of Go with examples to get you started. 1. Installation To get started with Go, you'll need to install it…
In this tutorial, we'll explore how to use Python to interact with a MySQL database. We'll cover connecting to a database, performing basic CRUD (Create, Read, Update, Delete) operations, and handling errors. We'll assume you have Python installed on your system along with the mysql-connector-python library. Installation First, make sure you have mysql-connector-python installed.…
Cypress is a modern end-to-end testing framework designed to provide an easy and reliable way to test your web applications. In this tutorial, we'll cover the basics of Cypress and how to get started with writing tests. We'll go through installation, creating test files, writing tests, and running them. Prerequisites Basic understanding of JavaScript…
The @DependsOn annotation is used to express explicit dependencies between Spring beans. When you use @DependsOn, Spring ensures that the specified beans are initialized before the bean with the @DependsOn annotation. Prerequisites Make sure you have the following installed: Java JDK (8 or later) Maven (for building the project) Your favorite Java IDE (IntelliJ…
Spring Boot is a powerful framework for building Java applications with minimal configuration. WireMock is a library for stubbing and mocking web services for testing purposes. In this tutorial, we will integrate WireMock with Spring Boot to demonstrate how you can create and test RESTful services with ease. Table of Contents Introduction to Spring…
Welcome to our guide on leveraging the Spring Boot @Lazy annotation to optimize your application's performance and resource management. In this comprehensive exploration, we'll delve into the benefits and implementation of lazily initializing beans in Spring Boot projects. 1. Adding @Lazy Annotation Let's say we have a simple Spring Boot application with a couple…
In this tutorial, we will create a Spring Boot application and secure it using JWT (JSON Web Tokens) with JWS (JSON Web Signature) and JWK (JSON Web Key) in Spring Security OAuth2. Prerequisites Basic understanding of Spring Boot and Spring Security JDK installed on your machine Maven or Gradle installed Step 1: Setup a…
Getting Started with Groovy Groovy is a powerful, optionally typed and dynamic language that runs on the Java Virtual Machine (JVM). It combines the best features of Java with dynamic programming languages like Python and Ruby. Groovy is often used for scripting tasks, rapid application development, and as a general-purpose language for JVM projects.…