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SDSai Dinesh Kondalearningdataengineering.hashnode.devJan 24 · 3 min read

From Software Testing to Data Engineering: My Learning Journey

Introduction I’m currently working as a Software Tester, and I’m starting this blog to document my journey into Data Engineering. This is not a blog written by an expert.It’s written by someone who is learning seriously, step by step, and wants to un...

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DYDeepankar Yadavbytesofdeepankar.hashnode.devDec 22, 2025 · 4 min read

Postmortem of Spark Executor's death

A question I kept coming back to while comparing Spark with BigQuery was this: If Spark executors write shuffle data to disk, and that disk still exists, why can’t other executors read that data when one executor dies? At first glance, it feels lik...

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AKAbhishek Kumarabhi1213.hashnode.devNov 1, 2025 · 37 min read

Learning PySpark with Databricks

https://spark.apache.org/docs/latest/api/python/reference/pyspark.pandas/series.html Why PySpark? PySpark allows you to use Python — the most popular data language — to write Spark applications. It’s widely used in Data Engineering, Data Analytics,...

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JPJidhun Puthuppattujidhun.hashnode.devAug 29, 2025 · 4 min read

Data Integration and Transformation Tools: A Comprehensive Exploration

In modern data-driven ecosystems, organizations rely on diverse sources of data—ranging from transactional systems and IoT devices to social media feeds and cloud platforms. To extract meaningful insights, this heterogeneous data must be integrated, ...

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IEIslam Elbannapractical-software.comMay 17, 2025 · 5 min read

Mastering Apache Spark SQL: Create Complex Queries with Common Table Expressions CTE (WITH Clause)

Apache Spark SQL uses SQL capabilities to process large-scale structured data. One powerful feature in modern SQL is the WITH clause, supported in Spark SQL as Common Table Expressions (CTE). CTE offer a more organized, readable, and often more effic...

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MAMuhammad Atif Hafeezdatabrickssparksqlscdtype2.hashnode.devFeb 21, 2025 · 5 min read

Implementing SCD Type 2 Using Spark SQL and Delta Tables

In this blog, I will walk you through a straightforward approach to implementing Slowly Changing Dimension (SCD) Type 2 using Spark SQL and Delta Tables. This method ensures atomicity and maintains the history of records effectively. Introduction to ...

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SBShreyash Bantebigdatageek.devAug 22, 2024 · 4 min read

Apache Spark Architecture

Apache Spark’s architecture is a cornerstone of its ability to efficiently process large-scale data. It is designed around the concept of distributed computing, which enables it to process massive datasets quickly and reliably across a cluster of com...

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KRKumar Rohitkrohit-de.hashnode.devAug 15, 2024 · 13 min read

Hello Spark on Minikube

Minikube is a beginner-friendly tool that lets you run a Kubernetes cluster on your local machine, making it easy to start learning and experimenting with Kubernetes without needing a complex setup. It creates a single-node cluster inside a virtual m...

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MKMehul Kansalmehulkansal.hashnode.devAug 12, 2024 · 7 min read

Week 12: Mastering Hive 📈

Hey fellow data engineers! 👋 This week's blog explores the architecture of Hive, offering insights into its components like data storage and metadata management. It also covers the different types of tables Hive supports, essential optimizations for...

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TLTurboline LTDblog.turboline.aiJul 10, 2024 · 4 min read

AI-Based Data Transformation: A Comparison of LLM-Generated PySpark Code (Using Mistral & Google Gemini Advanced)

Mistral Le Chat Mistral's Le Chat didn't have the functionality to upload CSV files, so I couldn't generate a transformation code. I could have built a lightweight ingestion process using Mistral API and Langchain. However, that was out of scope for ...

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#sparksql

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Trending tags this week

From Software Testing to Data Engineering: My Learning Journey

Postmortem of Spark Executor's death

Learning PySpark with Databricks

Data Integration and Transformation Tools: A Comprehensive Exploration

Mastering Apache Spark SQL: Create Complex Queries with Common Table Expressions CTE (WITH Clause)

Implementing SCD Type 2 Using Spark SQL and Delta Tables

Apache Spark Architecture

Hello Spark on Minikube

Week 12: Mastering Hive 📈

AI-Based Data Transformation: A Comparison of LLM-Generated PySpark Code (Using Mistral & Google Gemini Advanced)