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 denne seksjonen vil du lære hvordan du grupperer og håndterer data effektivt. Vi vil introdusere GROUP BY-operatøren for å gruppere data. I tillegg vil du lære hvordan du filtrerer grupperte data ved hjelp av HAVING-operatøren.

Du vil lære om nestede underforespørsler, hvordan du oppretter dem, og hvordan du bruker dem effektivt.

Her vil du lære hvordan du kan kombinere flere tabeller, slik at du kan jobbe med en samlet tabell og forenkle opprettelsen av spørringer.

Lær det grunnleggende om Data Definition Language (DDL) og Data Manipulation Language (DML) i SQL, inkludert hvordan du oppretter, endrer og sletter databaseobjekter, samt hvordan du setter inn, oppdaterer og sletter data i tabeller.

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.

Utforsk hvordan nettet fungerer. Lær hvordan data reiser over nettverk, oppdag rollen til protokoller, og løs mysteriene med IP-adresser og domenenavn. Få en overordnet forståelse av hvordan nettlesere og servere kommuniserer for å levere nettinnhold.

Oppdag kraften i koder for å strukturere innhold, fra overskrifter og avsnitt til lister og tabeller. Lær hvordan du kan forbedre elementene med attributter.

Kjernen i HTML-dokumentstrukturen. Lær komponentene i et HTML-dokument, inkludert doctype-erklæringen, head og body. Forstå formålet med hvert element og hvordan de bidrar til den overordnede strukturen på en nettside.

Gjør en nettside mer tiltalende ved hjelp av media som bilder, lyd og video. Arbeid med strukturert tabulær data i form av tabeller.

Utforsk allsidigheten til HTML-skjemaer. Lær å designe intuitive og brukervennlige skjemaer ved å utnytte nøkkelkonsepter og teknikker. Oppdag hvordan skjemaer muliggjør brukerinteraksjon og datasending på nettsteder.

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.