Essential debugging with a Local Spark Cluster on Windows
Vishal Jadhav Are you looking to master Apache Spark troubleshooting, hi, but find that local mode hides real-world errors? Running Spark in local mode executes everything in a single JVM. This setup…
data-engineering
Top 10 Data Engineering Skills Every Company Needs in 2026
Most in demand skills for data engineers in 2026
What Is Data Engineering? A Complete Guide for 2026
Data Engineering has become one of the most essential disciplines in today’s data-driven world. Whether you’re a student, a beginner exploring tech, techie or someone interested in how companies use…
Data Modeling – How to design it?
Data modeling is a structured approach to designing and organizing data for a database or system. Here are the key steps: 1. Identify Business RequirementsUnderstand the purpose of the data…
GCP BigQuery
Following are the most important topics in bigquery. This is also important topics in a perspective of GCP Profession Data Engineer exam. BigQuery basic concepts wildcard tables _table_suffix External Table…
How to handle skewed data in PySpark?
How Do You Handle Skewed Data in PySpark? This is a critical PySpark interview question! Here’s the breakdown: ✅ What is Skewed Data? A skewed partition in Spark occurs when…
Catalyst Optimizer: Predicate Pushdown in Apache Spark
if in your code/query if you are filterring the data at the end, Catalyst optimizer (in prediction pushdown) will apply filtering on input or source and then do the other…
SCD Types Explained with Examples
Slowly Changing Dimensions (SCD) are used in data warehousing to manage historical changes in dimension tables. There are several types of SCDs, each handling data changes differently. Types of SCDs…
PySpark with Databricks – Complete Data Engineering Guide
PySpark Interview Questions (lec 6) How to read files in spark? You are going to see how to read different file formats in pyspark. first, you need to create the…
How Would You Handle Skewed Data in PySpark? (Part 2 – Alternative Approaches)
📌 Updated Guide Available: Check out our comprehensive updated guide on this topic: How to Handle Skewed Data in PySpark – Complete Guide Handling skewed data in PySpark is crucial…