Oracle Database Architecture and Administration

Posted by on Oct 6, 2024 in Computers | 0 comments

Disk Access Speed vs. RAM Access Speed

· RAM ~ 10^-9 seconds
· Disk ~ 10^-3 seconds

RMAN Backup and Recovery

RMAN (Recovery Manager) handles the management of backups and restoring data files, archive logs, and control files. It can be used for complete or incomplete recovery of a database.

GRANT, REVOKE, System Privileges, and Object Privileges

System privileges allow users to perform specific actions in the database, such as creating a tablespace.

Object privileges allow users to access and manipulate

Read More

Database Management Systems (DBMS) and File Processing: A Comprehensive Guide

Posted by on Oct 6, 2024 in Computers | 0 comments

Database Management System (DBMS)

DBMS (Database Management System) is software designed to store, manage, and retrieve data efficiently. It acts as an intermediary between the user and the database, allowing users to create, read, update, and delete data in a structured way. DBMS ensures that data is organized and accessible while providing features like data integrity, security, and concurrency control.

Need for DBMS

  • Data Redundancy Reduction: DBMS minimizes the duplication of data by integrating
Read More

Essential C Programs: Examples & Code

Posted by on Oct 6, 2024 in Computers | 0 comments

Essential C Programs with Examples

1. Largest of Three Numbers

This program finds the largest among three numbers using the ternary operator.

largest = (x > y) ? (x > z ? x : z) : (y > z ? y : z);

2. Quadratic Equation Solver

This program solves a quadratic equation using the quadratic formula.

#include #includeint main() { double a, b, c, discriminant, root1, root2;printf("Enter coefficients a, b, c: "); scanf("%lf %lf %lf", &a, &b, &c);discriminant = b * b - 4 * a * c;if (discriminant

Read More

JavaScript Fundamentals and DOM Manipulation

Posted by on Oct 5, 2024 in Computers | 0 comments

calculator.js

let string = "";
let buttons = document.querySelectorAll('.button');
let inputBox = document.getElementById('inputBox');
let outputBox = document.getElementById('outputBox');

Array.from(buttons).forEach((button) => {
    button.addEventListener('click', (e) => {
        if (e.target.innerHTML == '=') {
            try {
                string = eval(string);
                outputBox.value = string;
            } catch (error) {
                outputBox.

Read More

Unity Game Development: Publishing, Scripting, and Rendering

Posted by on Oct 3, 2024 in Computers | 0 comments

Steps for Publishing in Unity

  1. Prepare Project:
    • Optimize game, fix errors, set build and player settings.
  2. Build the Project:
    • Go to File > Build Settings, choose platform, and click Build.
  3. Platform-Specific Publishing:
    • PC: Compress the build, upload to Steam or itch.io.
    • Android: Build APK/AAB, upload to Google Play Console.
    • iOS: Build via Xcode, upload to App Store Connect.
    • WebGL: Build and upload to web server or platforms like itch.io.
  4. Test the Build:
    • Ensure the game runs well on target platforms.
  5. Submit
Read More

Direct3D Rendering and Graphics Techniques

Posted by on Oct 3, 2024 in Computers | 0 comments

Direct3D Rendering Pipeline

The Direct3D rendering pipeline transforms 3D models into 2D images. Key stages include:

  1. Application Stage: Prepares data (models, textures, shaders) and sends commands to the GPU.
  2. Input Assembly: Organizes vertex data into primitives (points, lines, triangles).
  3. Vertex Shader: Processes each vertex, transforming positions and applying effects.
  4. Rasterization: Converts vertices into pixels.
  5. Pixel Shader (Fragment Shader): Computes the final color for each pixel.
  6. Output Merger:
Read More