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Data Warehousing Concepts in SQL: Understanding Star and Snowflake Schemas

Table of Contents Introduction What Is a Data Warehouse? OLTP vs OLAP: The Need for Warehousing Key Components of a Data Warehouse What Is Dimensional Modeling? Facts and Dimensions Explained The...
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SQL with APIs and JSON Fields in PostgreSQL: Working with Semi-Structured Data

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SQL for Data Engineering: ETL Concepts and Building Scalable Data Pipelines

Table of Contents Introduction What Is Data Engineering and Why SQL Matters Understanding ETL (Extract, Transform, Load) SQL’s Role in Each ETL Stage Data Sources: Raw Data Ingestion with...
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SQL for Data Analysis: Deep Dive into KPIs and Cohort Analysis

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Error Handling in SQL: Managing Exceptions and Ensuring Reliable Transactions

Table of Contents Introduction Why Error Handling Matters in SQL Types of Errors in SQL Syntax Errors vs Runtime Errors Understanding Transaction Errors Rollbacks for Safe Error Recovery Error Handling in...

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Stored Procedures and Functions in SQL: Encapsulating Logic for Reuse and Automation

Table of Contents Introduction What Are Stored Procedures and Functions? Benefits of Using Stored Routines Stored Procedures vs Functions: Key Differences Syntax for Creating Stored Procedures Executing a Stored Procedure Parameters...

Triggers in SQL: Automating Database Behavior

Table of Contents Introduction What Is a Trigger in SQL? Why Use Triggers? Types of Triggers Syntax of a Trigger BEFORE vs AFTER Triggers INSERT, UPDATE, and DELETE Triggers Trigger Events: Row-Level...

Using Constraints in SQL: NOT NULL, UNIQUE, CHECK, and DEFAULT

Table of Contents Introduction What Are Constraints in SQL? Why Use Constraints? NOT NULL Constraint UNIQUE Constraint CHECK Constraint DEFAULT Constraint Combining Multiple Constraints Adding Constraints to Existing Tables Dropping Constraints Naming Constraints for Clarity Column-Level...

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Your First Python Program (Hello World and Beyond)

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Table of Contents Introduction Setting Up Your Python Environment Writing Your First Python Script Printing "Hello, World!" Breaking Down the Code Running Python Programs Using the Terminal or Command Prompt Running Python...

Installing Python, VSCode, PyCharm, and Jupyter Notebook

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Table of Contents Introduction Installing Python on Your System Windows Installation macOS Installation Linux Installation Setting Up Visual Studio Code (VSCode) for Python Installing PyCharm IDE Installing Jupyter Notebook Verifying Your Development Environment Best...

Introduction to Python and Why Learn It

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Table of Contents Introduction What is Python? Key Features of Python Why is Python So Popular? Python’s Versatility Across Industries Career Opportunities with Python Python vs Other Programming Languages Challenges and Misconceptions...

Understanding Data Privacy and Security Compliance: GDPR, CCPA, HIPAA, and More

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Compliances like GDPR (General Data Protection Regulation) and others are legal frameworks designed to ensure data privacy, security, and responsible data handling by organizations....

Building a Responsive Landing Page

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Table of Contents: Introduction to Landing Pages Planning Your Landing Page Defining the Goal of the Landing Page Target Audience Choosing the Right Technology Stack Setting Up the Project Structure Creating...

Building a Personal Portfolio Website

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Table of Contents: Introduction to Portfolio Websites Planning Your Portfolio Website Identifying the Purpose Target Audience Choosing the Right Technology Stack Setting Up the Project Structure Creating the HTML Structure Header and...

How to Structure Large CSS Projects

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Table of Contents: Why CSS Project Structure Matters Key Principles for Structuring CSS Projects Maintainability Scalability Reusability Performance Organizing CSS with Preprocessors (Sass, SCSS) Folder Structure for Large CSS Projects CSS Methodologies BEM (Block,...

Deep Dive into Advanced Concepts of CSS Preprocessors (SCSS, Sass)

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Table of Contents: Revisiting Sass/SCSS Syntax: A Deeper Look Advanced SCSS Features and Techniques Inheritance and @extend Dynamic Import with @use and @forward Advanced Nesting Techniques Sass Functions and Mixins...

Introduction to Preprocessors (SCSS, Sass)

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Table of Contents: What Are CSS Preprocessors? Why Use Preprocessors? Introduction to Sass What is Sass? Benefits of Using Sass SASS vs SCSS Key Differences Syntax Examples Setting Up Sass/SCSS Installing Sass Compiling Sass to...

Utility-First CSS and Atomic Design

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Table of Contents: What is Utility-First CSS? Principles of Utility-First CSS Small, Reusable Classes Composition over Inheritance Easier to Override and Customize Introduction to Atomic Design Building Blocks of Atomic Design Atoms Molecules Organisms Templates Pages How...

Naming Conventions in CSS (BEM, SMACSS)

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Table of Contents Introduction The Need for CSS Naming Conventions What is BEM? BEM Structure Benefits of BEM BEM Example What is SMACSS? SMACSS Categories SMACSS Naming Approach SMACSS Example BEM vs SMACSS: Key Differences Choosing...

CSS Reset vs Normalize.css

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Table of Contents Introduction What is a CSS Reset? Why Use a CSS Reset? Common CSS Reset Techniques What is Normalize.css? Why Use Normalize.css? Key Differences Between CSS Reset and Normalize.css Which...
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