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.

Tässä osiossa opit ryhmittelemään ja hallitsemaan tietoja tehokkaasti. Esittelemme GROUP BY -operaattorin tietojen ryhmittelyyn. Lisäksi opit suodattamaan ryhmiteltyjä tietoja HAVING-operaattorin avulla.

Opit sisäkkäisistä alikyselyistä, kuinka luoda niitä ja kuinka käyttää niitä tehokkaasti.

Tässä opit yhdistämään useita tauluja, mikä mahdollistaa työskentelyn yhtenäisen taulun kanssa ja yksinkertaistaa kyselyjen luomista.

Opi SQL:n tietojen määrittelykielen (DDL) ja tietojen käsittelykielen (DML) perusteet, mukaan lukien kuinka luoda, muokata ja poistaa tietokantaobjekteja sekä kuinka lisätä, päivittää ja poistaa tietoja taulukoissa.

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.

Tutki verkon sisäistä toimintaa. Opi, miten data kulkee verkkojen läpi, tutustu protokollien rooliin ja selvitä IP-osoitteiden ja verkkotunnusten mysteerit. Saa korkeatasoinen ymmärrys siitä, miten verkkoselaimet ja palvelimet kommunikoivat toimittaakseen verkkosisältöä.

Tutustu tunnisteiden voimaan sisällön jäsentämisessä, otsikoista ja kappaleista listoihin ja taulukoihin. Opi, kuinka voit parantaa elementtejä attribuuteilla.

HTML-dokumentin rakenteen ydin. Opi HTML-dokumentin osat, mukaan lukien doctype-ilmoitus, head ja body. Ymmärrä kunkin elementin tarkoitus ja miten ne vaikuttavat verkkosivun kokonaisrakenteeseen.

Tee verkkosivusta houkuttelevampi median, kuten kuvien, äänen ja videon avulla. Työskentele jäsennellyn taulukkomuotoisen datan kanssa taulukoiden muodossa.

Tutustu HTML-lomakkeiden monipuolisuuteen. Opi suunnittelemaan intuitiivisia ja käyttäjäystävällisiä lomakkeita hyödyntämällä keskeisiä käsitteitä ja tekniikoita. Selvitä, kuinka lomakkeet mahdollistavat käyttäjän vuorovaikutuksen ja tietojen lähettämisen verkkosivustoilla.

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.