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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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Tables and Their Structure (<table>, <tr>, <td>)

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Table of Contents Introduction to HTML Tables The Basic Structure of an HTML Table Table Rows (<tr>) and Table Cells (<td>) Table Headings (<th>) and Caption (<caption>) Colspan and...

Images and the <img> Tag

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Table of Contents Introduction to the <img> Tag The Basic Syntax of the <img> Tag The src Attribute and Image Path The alt Attribute for Accessibility and SEO Controlling...

Links and Anchor Tags

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Table of Contents Introduction to Links and Anchor Tags Creating a Basic Link with the <a> Tag Using the href Attribute Opening Links in a New Tab with...

Lists (Ordered, Unordered, and Description)

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Table of Contents Introduction to HTML Lists Unordered Lists (<ul>) Ordered Lists (<ol>) Description Lists (<dl>) Nested Lists Best Practices for Using Lists in HTML Conclusion 1. Introduction to HTML Lists HTML lists...

Headings, Paragraphs, and Text Formatting

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Table of Contents Understanding Headings in HTML The Importance of Paragraphs in HTML Common Text Formatting Tags Working with Lists: Ordered and Unordered Best Practices for Headings and Paragraphs Text...

HTML Elements, Tags, and Attributes

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Table of Contents Understanding HTML Elements vs Tags The Structure of an HTML Element Types of HTML Tags (Paired vs Self-closing) Common HTML Elements You Should Know Attributes: Adding...

Setting Up Your First Web Page (HTML Boilerplate)

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Table of Contents What is an HTML Boilerplate? Why Use an HTML Boilerplate? Creating Your First Web Page Breaking Down the HTML Boilerplate Line by Line Customizing the Boilerplate Common...

Introduction to the Web, HTML, and the DOM

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Table of Contents What is the Web? How the Web Works Understanding HTML: The Foundation of Web Pages What is the DOM? How HTML and the DOM Interact Key Terminology...

Cloud Monitoring with MongoDB Atlas

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Table of Contents Introduction to MongoDB Atlas Benefits of Using MongoDB Atlas for Cloud Monitoring Key Monitoring Metrics in MongoDB Atlas Setting Up Monitoring in MongoDB Atlas Real-time Performance...

Monitoring and Performance Tuning in MongoDB

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Table of Contents Introduction to MongoDB Monitoring and Performance Tuning Key Performance Indicators (KPIs) for MongoDB MongoDB Monitoring Tools and Techniques Identifying Performance Bottlenecks Indexing and Query Optimization Resource Management...

MongoDB Change Streams and Real-Time Event Listening

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Table of Contents Introduction to Change Streams How Change Streams Work in MongoDB Benefits of Using Change Streams Use Cases for MongoDB Change Streams Implementing Change Streams in Node.js Handling...

MongoDB Transactions in Replica Sets

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Table of Contents Introduction to MongoDB Transactions Why Use Transactions in MongoDB? MongoDB Replica Sets and Transactions How Transactions Work in MongoDB Replica Sets ACID Properties of MongoDB Transactions Example...
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