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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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Kafka in Microservices Architecture: Building Scalable Event-Driven Systems

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Table of Contents Introduction to Kafka in Microservices Why Kafka Over REST for Microservices? Key Concepts of Event-Driven Microservices Kafka as an Event Backbone Microservice Communication Patterns Using Kafka Designing...

Apache Kafka with Node.js: A Deep Dive into Event Streaming

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Table of Contents What is Apache Kafka? Why Use Kafka with Node.js? Kafka Architecture Overview Setting Up Kafka Locally or with Docker Installing Kafka Clients for Node.js Producing Messages to...

Serverless Architecture with Node.js: A Deep Dive

Kumar Prafull -
Table of Contents What is Serverless Architecture? Why Use Node.js for Serverless? Key Components of a Serverless Application Serverless Providers: AWS Lambda, Azure Functions, Google Cloud Functions Building Your...

Real-time GraphQL with Subscriptions in Node.js

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Table of Contents What Are GraphQL Subscriptions? Real-time vs Traditional Data Fetching WebSockets and GraphQL Setting Up GraphQL Subscriptions in Node.js Using Apollo Server with Subscriptions Broadcasting Events with PubSub Example:...

Optimizing GraphQL Performance in Node.js

Kumar Prafull -
Table of Contents Introduction to GraphQL Optimization Common GraphQL Performance Challenges Query Caching Response Caching with Apollo Server Batching and Dataloader Avoiding N+1 Query Problems Pagination Strategies Persisted Queries Query Complexity Analysis and...

Deep Dive into GraphQL with Node.js

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Table of Contents Introduction to GraphQL Why Use GraphQL with Node.js? Setting Up the Node.js Environment for GraphQL Basic Concepts of GraphQL Queries Mutations Subscriptions Setting Up a Simple GraphQL Server with...

Building Command-line Tools with Node.js

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Table of Contents Introduction to Command-Line Tools Why Use Node.js for Command-Line Tools? Setting Up the Node.js Environment for CLI Tools Building a Simple Command-Line Tool with Node.js Handling...

Advanced Patterns and Architecture in Node.js

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Table of Contents Introduction to Advanced Node.js Patterns and Architecture Design Patterns in Node.js Singleton Pattern Factory Pattern Observer Pattern Module Pattern Asynchronous Programming Patterns Promises and Async/Await Callback Hell and How to...

Caching in Node.js

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Table of Contents Introduction to Caching in Node.js Why Caching is Important Types of Caching In-memory Caching Distributed Caching Persistent Caching Basic In-Memory Caching with Node.js Using Redis for Caching in Node.js Cache...

Advanced Error Handling in Node.js

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Table of Contents Introduction to Advanced Error Handling in Node.js Understanding Synchronous vs Asynchronous Errors Error Handling in Callbacks Promises and Error Handling Error Handling with async/await Custom Error Classes...

Node.js and Cloud Deployment

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Table of Contents Introduction to Cloud Deployment for Node.js Why Use the Cloud for Node.js Applications? Popular Cloud Providers for Node.js Deployment Setting Up Cloud Environment for Node.js Deploying...

Microservices with Node.js

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Table of Contents Introduction to Microservices Architecture Benefits of Using Microservices in Node.js Core Concepts of Microservices Setting Up a Node.js Microservices Architecture Creating Individual Services Communication Between Services Building Microservices...
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