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What’s Wrong with Data Validation — and How It Relates to the Liskov Substitution Principle
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What’s Wrong with Data Validation — and How It Relates to the Liskov Substitution Principle

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6 min read
What Is a Primary Key in SQL? Learn with Examples
Cover image for What Is a Primary Key in SQL? Learn with Examples

What Is a Primary Key in SQL? Learn with Examples

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3 min read
Big Data Fundamentals: hive example

Big Data Fundamentals: hive example

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5 min read
Big Data Fundamentals: hive

Big Data Fundamentals: hive

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6 min read
Big Data Fundamentals: kafka with python

Big Data Fundamentals: kafka with python

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6 min read
Accessing Data With Django MongoDB Backend: Queries to Aggregation Pipelines

Accessing Data With Django MongoDB Backend: Queries to Aggregation Pipelines

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12 min read
The Unofficial Snowflake Monthly Release Notes: June 2025

The Unofficial Snowflake Monthly Release Notes: June 2025

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17 min read
Big Data Fundamentals: kafka tutorial

Big Data Fundamentals: kafka tutorial

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6 min read
Big Data Fundamentals: kafka example

Big Data Fundamentals: kafka example

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6 min read
What I'm Using in NodeJS to Bypass Cloudflare Challenge and Turnstile
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What I'm Using in NodeJS to Bypass Cloudflare Challenge and Turnstile

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6 min read
How to Duplicate a Table in MySQL

How to Duplicate a Table in MySQL

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2 min read
How to Discover or Organize Lakehouse & Apache Iceberg Meetups
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How to Discover or Organize Lakehouse & Apache Iceberg Meetups

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5 min read
Big Data Fundamentals: flink with python

Big Data Fundamentals: flink with python

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6 min read
CouchDB Data Modelling: Prefer Smaller Documents
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CouchDB Data Modelling: Prefer Smaller Documents

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2 min read
rsql: Your Universal Command-Line SQL Interface

rsql: Your Universal Command-Line SQL Interface

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3 min read
Part 1:What Exactly Is Data?

Part 1:What Exactly Is Data?

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2 min read
Mocks, Stubs, and Contract Testing: Explanation with Examples

Mocks, Stubs, and Contract Testing: Explanation with Examples

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2 min read
Big Data Fundamentals: flink project

Big Data Fundamentals: flink project

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5 min read
📌 Enumerate(): A Concept Every Python Learner Should Know

📌 Enumerate(): A Concept Every Python Learner Should Know

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2 min read
Big Data Fundamentals: spark project

Big Data Fundamentals: spark project

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6 min read
Building a Real-Time Data Pipeline using Binance Websocket API, PySpark, Kafka and Grafana
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Building a Real-Time Data Pipeline using Binance Websocket API, PySpark, Kafka and Grafana

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9 min read
Big Data Fundamentals: data sharding with python

Big Data Fundamentals: data sharding with python

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6 min read
🚀💥 Goodbye Airflow, Hello Dagster — Future-Proof Your Pipelines in 2025

🚀💥 Goodbye Airflow, Hello Dagster — Future-Proof Your Pipelines in 2025

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1 min read
Privacy in DePIN: Hardware Enclaves, Data Risks & Real-world Solutions

Privacy in DePIN: Hardware Enclaves, Data Risks & Real-world Solutions

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1 min read
🚨💸 Kafka vs Pub/Sub in 2025: How €600k Vanished Overnight — And How Pub/Sub Saved the Day

🚨💸 Kafka vs Pub/Sub in 2025: How €600k Vanished Overnight — And How Pub/Sub Saved the Day

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1 min read
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