Java Web

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This section dives into the world of relational and non-relational databases, teaching you how to visually represent database structures.

We'll dive deep into relational databases, giving you a thorough understanding of essential concepts. This includes topics like foreign keys, various ON DELETE options, and the different types of relationships.

Ready to build a database? This section will hone your skills, emphasizing the importance of a well-structured database for peak performance. Here, you'll grasp the fundamental principles of crafting user-friendly databases.

I det här avsnittet kommer du att lära dig hur man grupperar och hanterar data effektivt. Vi kommer att introducera GROUP BY-operatören för att gruppera data. Dessutom kommer du att lära dig hur man filtrerar grupperad data med hjälp av HAVING-operatören.

Du kommer att lära dig om nästlade underfrågor, hur man skapar dem och hur man använder dem effektivt.

Här kommer du att lära dig hur man kombinerar flera tabeller, vilket gör att du kan arbeta med en enhetlig tabell och förenkla skapandet av frågor.

Lär dig grunderna i Data Definition Language (DDL) och Data Manipulation Language (DML) i SQL, inklusive hur man skapar, ändrar och tar bort database objects, samt hur man infogar, uppdaterar och tar bort data inom tables.

Why do we need a database? How does the interaction between a database and code work? What tools are used for different types of databases? You will learn all about this in this section!

This section will tell you how to set up and use Hibernate. You will learn how this framework works, what ORM is, and how to work with databases efficiently. You will also learn to write basic operations with a connected database, demonstrating your skills in practice!

In this section, we will complete work on the project's foundation for employee management in the company. We will add the remaining operations and one more entity.

Utforska webben inre funktioner. Lär dig hur data färdas över nätverk, upptäck protokollens roll och lös mysterierna med IP-adresser och domännamn. Få en övergripande förståelse för hur webbläsare och servrar kommunicerar för att leverera webb-innehåll.

Upptäck kraften i taggar för att strukturera innehåll, från rubriker och stycken till listor och tabeller. Lär dig hur du förbättrar elementen med attribut.

Kärnan i HTML-dokumentstrukturen. Lär dig komponenterna i ett HTML-dokument, inklusive doctype-deklarationen, head och body. Förstå syftet med varje element och hur de bidrar till den övergripande strukturen på en webbsida.

Gör en webbsida mer tilltalande med hjälp av media som bilder, ljud och video. Arbeta med strukturerad tabulär data i form av tabeller.

Utforska mångsidigheten hos HTML-formulär. Lär dig att designa intuitiva och användarvänliga formulär genom att utnyttja viktiga koncept och tekniker. Upptäck hur formulär möjliggör användarinteraktion och dataöverföring på webbplatser.

You’ll learn the basics of backend development, including how the HTTP protocol works and the differences between HTTP and HTTPS. You’ll also study HTTP status codes and data formats like JSON and XML for transferring information between client and server.

In this section, we will dive into the essential concepts of backend development using Spring. We will cover various topics, including an introduction to Spring, the principles of Inversion of Control (IoC) and Dependency Injection (DI), the structure of a Spring Boot project, Spring MVC, three-tier architecture, and task management. Each chapter will build upon the previous one to provide a comprehensive understanding of backend development in a Spring environment.

This section covers the fundamentals and practical implementation of RESTful APIs, starting with the theoretical understanding of REST and its core principles. It also includes building your own API, working with DTOs, handling exceptions, integrating Swagger for documentation, and testing the API.

This section covers the basics of working with relational databases, including connection setup, migrations, and interaction with Object-Relational Mappers (ORM) using JPA and Hibernate. It discusses how to integrate databases with Spring Boot applications and explores key aspects of transaction management to ensure data integrity. The goal of this section is to enhance your database skills and promote their effective use in application development.

This section focuses on testing backend applications and covers essential topics such as the fundamentals of testing, unit testing using JUnit, and integration testing. It also explores the use of mock objects with the Mockito library to create effective and isolated tests. This section will help developers understand the importance of testing and learn how to utilize tools to enhance the quality and reliability of their applications.

This section provides an introduction to Redis, highlighting its core features and common use cases. You’ll learn how to install Redis on different platforms, including Windows and macOS, and get familiar with the basics of connecting to and starting the Redis server.

Here, we explore the essential Redis commands for managing and manipulating data effectively. You'll learn how to set, retrieve, increment, and delete data using commands like SET, GET, EXISTS, INCR, DECR, and tackle practical tasks to apply these concepts in real-world scenarios.

Here, you will learn about key Redis data types, including Lists, Sets, Sorted Sets, and Hashes. You will explore their functionality and practical applications through focused exercises designed to reinforce your understanding of each data type.

You'll explore advanced features of Redis, including managing key lifecycles, executing transactions, and leveraging the Pub/Sub messaging system. Additionally, you'll learn essential security practices to safeguard your Redis environment against unauthorized access.

This section introduces the fundamentals of caching and demonstrates how to configure Redis as a cache in a Spring application. It covers key caching annotations and practical examples of caching queries in web applications, concluding with a summary of the main concepts.