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ActiveX Data Objects - ADO

ActiveX Data Objects (ADO) are a collection of COM-based objects developed by Microsoft to facilitate access to databases across various programming languages and platforms. ADO provides a unified interface for working with databases, allowing developers to execute SQL statements, read and write data, and manage transactions.

The main components of ADO include:

  1. Connection: Establishes a connection to the data source and manages connection properties.
  2. Command: Allows the execution of SQL statements or stored procedures on the data source.
  3. Recordset: Contains a result set from a query or stored procedure and enables traversing and editing of records.
  4. Record: Represents a single record in a recordset.
  5. Field: Represents a single field in a record and allows access to its value.

ADO has often been used in the development of Windows applications, especially in conjunction with the Visual Basic programming language. It provides an efficient way to access and manage databases without developers having to worry about the specific details of database connection.


Created 7 Months ago

Regular expressions - Regex

Regular expressions, often abbreviated as "Regex," are sequences of characters that define a search pattern. They are primarily used in text processing to find, extract, or manipulate text patterns. Regular expressions provide a powerful and flexible way to search and manipulate text based on a specific pattern.

With regular expressions, you can, for example:

  1. Search for text patterns: You can search for specific strings that match a defined pattern, such as email addresses, phone numbers, or URLs.

  2. Extract text patterns: You can extract parts of a text that match a specific pattern, such as parsing data from a format.

  3. Replace text patterns: You can replace text patterns in a text with other strings, such as substituting placeholders or removing unwanted characters.

Regular expressions are extremely flexible and allow the use of metacharacters and quantifying expressions to define complex patterns. They are supported in many programming languages and text editors and are a fundamental tool for text manipulation and analysis in software development, data processing, web development, and other fields.

 


Created 7 Months ago

SQL-Injection - SQLI

SQL injection (SQLI) is a type of attack where an attacker injects malicious SQL code into input fields or parameters of a web page, which is then executed by the underlying database. This attack method exploits vulnerabilities in input validation to gain unauthorized access to or manipulate the database.

An example of SQL injection would be if an attacker enters an SQL command like "OR 1=1" into the username field of a login form. If the web application is not adequately protected against SQL injection, the attacker could successfully log in because the injected SQL command causes the query to always evaluate to true.

SQL injection can have various impacts, including:

  1. Disclosure of confidential information from the database.
  2. Manipulation of data in the database.
  3. Execution of malicious actions on the server if the database supports privileged functions.
  4. Destruction or corruption of data.

To protect against SQL injection attacks, web developers should employ secure programming practices, such as using parameterized queries or ORM (Object-Relational Mapping) frameworks to ensure all user inputs are handled securely. Additionally, it's important to conduct regular security audits and promptly install security patches.

 


Created 8 Months ago

Function as a Service - FaaS

Function-as-a-Service (FaaS) is a cloud computing model that allows developers to execute individual functions or code snippets without having to worry about the underlying infrastructure. Essentially, FaaS enables developers to upload and run code in the form of functions without dealing with the deployment, scaling, or management of server infrastructure.

The idea behind FaaS is that developers only need to write and upload the code that fulfills a specific function. The FaaS platform then handles the execution of this code when triggered by events or requests. A typical example of FaaS is using serverless computing in the cloud, where developers deploy functions in the cloud that run only when needed.

Popular FaaS platforms include AWS Lambda by Amazon Web Services, Azure Functions by Microsoft Azure, and Google Cloud Functions by Google. They allow developers to upload and execute code in various programming languages, simplifying application development and scalability without worrying about the underlying infrastructure.

 


Created 10 Months ago

Web Application

A web application is a software application accessible via a web browser and operates over the internet. Unlike traditional software installed on a local computer, a web application runs on a remote server and is accessed through the user's browser.

Web applications can encompass a wide range of functions, from simple interactive pages to complex applications such as social networks, email services, online stores, productivity tools, and more. They often use a combination of different technologies like HTML, CSS, and JavaScript on the client-side (in the user's browser) as well as backend technologies like databases, server-side scripting languages (e.g., Python, PHP, Ruby), and frameworks to support functionality.

Accessing web applications via the browser makes them platform-independent, allowing them to be used from various devices with an internet connection—be it a computer, tablet, or smartphone.


Created 11 Months ago

Programming Language

A programming language is a formal language used to create instructions that a computer can execute. Essentially, it's a set of rules and symbols that allow a developer to communicate to the computer what actions should be performed.There are different types of programming languages developed for various purposes. Some are particularly well-suited for web application development, others for system programming, data analysis, game development, and so on. Each language has its own rules, syntax, and semantics, but ultimately, they all serve the purpose of instructing the computer to perform specific tasks


Created 11 Months ago

Interpreter

An interpreter is a type of computer program that reads, analyzes, and directly executes source code. Unlike a compiler that translates the entire source code into an executable file, the interpreter analyzes the code line by line and executes it directly as it interprets it. This means that an interpreter converts the code into machine code or another executable form during runtime without generating a separate executable file. An interpreter is often used for programming languages like Python, JavaScript, and Ruby to convert the source code into instructions that the computer can execute.


Created 11 Months ago

Directive

In software development, a directive typically refers to a form of instruction or a specific tag used to provide instructions to the compiler, interpreter, or other build systems. These instructions control how the code should be processed or treated. Directives can vary across different programming languages and serve different purposes.

Some examples of directives in software development include:

  1. Preprocessor directives in C/C++: Used to provide instructions to the compiler on how to handle the code before compilation, such as #include to include header files or #define to define macros.

  2. Comment directives: These could be special instructions within the code recognized by specific tools or IDEs to perform certain actions. For instance, comment directives in some development environments might be used to generate automatic documentation.

  3. Statements for the compiler or interpreter: Some languages have specific statements that communicate instructions to the compiler or interpreter on how to process the code. For example, pragma directives in C/C++ that provide specific compiler instructions.

  4. Coding style guidelines: In certain cases, directives might be used to establish particular coding styles or formatting rules for the code, which are then interpreted by tools or analysis programs.

In essence, directives in software development serve to control the development process, establish specific behaviors, or provide special instructions to the compiler/interpreter on how to treat the code.

 


Created 11 Months ago

Garbage Collection

Garbage Collection is a process in many programming languages, including Java, that automatically manages memory in the computer that is no longer needed. When you write a program that allocates memory (for example, creating objects or variables), at some point, you may no longer need that memory.

Garbage Collection automatically identifies and removes such unused memory to free up resources and ensure efficient memory usage. It works by scanning the memory for objects that are no longer referenced or needed. These objects are then marked as "garbage," and the memory is reclaimed for reuse.

In Java, the JVM handles Garbage Collection. It tracks references to objects and identifies when an object is no longer reachable, allowing the memory occupied by that object to be freed. This simplifies programming as developers don't have to manually manage the deallocation of memory that is no longer needed.

 


Created 11 Months ago

Java

Java is a widely used object-oriented programming language developed by James Gosling and his team at Sun Microsystems in the 1990s. It is known for its portability, versatility, and security. Some key features of Java include:

  1. Platform Independence: Java programs can run on different platforms such as Windows, macOS, and Linux because they run within a virtual environment called the Java Virtual Machine (JVM).

  2. Object-Orientation: Java is an object-oriented language, treating everything as an object. This allows for the creation of modular and reusable code blocks.

  3. Robustness and Security: Features like garbage collection (automatic memory management), exception handling, and strong typing enhance the stability of Java programs. Security is ensured through restrictions on code execution.

  4. Widespread Use: Java finds application in various domains, from enterprise software development and web applications (through Java Enterprise Edition) to mobile devices (many Android apps are written in Java) and embedded systems.

  5. Rich Standard Libraries: The Java Standard Library offers a wide range of functionalities for various purposes, including data structures, networking capabilities, graphics, and more.

Java is commonly used for developing applications, websites, mobile apps, and large-scale systems. Due to its portability, security, and versatility, it remains a popular choice among developers worldwide.


Created 11 Months ago
Categories
Object-oriented programming 23 Applications 49 Design Patterns 20 Strategies 96 Continuous Integration - CI 2 Testing 9 Characteristic 41 Protocols 12 Communication 8 Data Structure 5 Version Control 6
PHP 49 Python 1 Ruby 1 TypeScript 2 JavaScript 15 Erlang 2 Java 3 General 3
NoSQL 9 Relational Databases 15 Concepts 4 General 2 Data Warehouse 2 Time Series Databases 1
Terraform 1 Cloud Computing 10 Server 4 Network 25 Virtualization 3 Ansible 1 Architecture 7 Characteristics 1
Cascading Style Sheets - CSS 3 Leaner Style Sheets - LESS 1 Syntactically Awesome Stylesheets - Sass 1
Attack Methods 17 Security Mechanisms 11 Organisations 1 Famous Security Loopholes 3
HTML 1 XML 4 Extensible Hypertext Markup Language - XHTML 1 Markdown 1
CSS 1
Kuenstliche Intelligenz 5
SCRUM 5 General 1 Kanban 1 Extreme Programming - XP 1 Crystal 5 Dynamic Systems Development Method - DSDM 1 Feature Driven Development - FDD 1
Applications 1
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