Vishal Jadhav Python Question asked me in interview [Coding + Theroy]
Coading + DSA Questions
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 Requirements Understand the purpose of the…
GCP BigQuery
Following are the most important topics in bigquery. This is also important topics in a perspective of GCP Profession Data Engineer exam.
Pyspark Top 100 Interview Question – Crack any interview
๐ฃ๐ฟ๐ฒ๐ฝ๐ฎ๐ฟ๐ฒ ๐ณ๐ผ๐ฟ ๐๐ต๐ถ๐ ๐พ๐๐ฒ๐๐๐ถ๐ผ๐ป ๐ฎ๐ป๐ฑ ๐ฐ๐ฟ๐ฎ๐ฐ๐ธ ๐ฎ๐ป๐ ๐ถ๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐! ๐ฃ๐๐ฆ๐ฝ๐ฎ๐ฟ๐ธ ๐๐ฎ๐๐ถ๐ฐ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐พ๐๐ฒ๐๐๐ถ๐ผ๐ป๐ ๐ฅ๐๐ (๐ฅ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ ๐๐ถ๐๐๐ฟ๐ถ๐ฏ๐๐๐ฒ๐ฑ ๐๐ฎ๐๐ฎ๐๐ฒ๐) ๐ฆ๐ฝ๐ฎ๐ฟ๐ธ ๐ฆ๐ค๐ ๐ฆ๐ฝ๐ฎ๐ฟ๐ธ ๐ฆ๐๐ฟ๐ฒ๐ฎ๐บ๐ถ๐ป๐ด ๐๐ฑ๐๐ฎ๐ป๐ฐ๐ฒ๐ฑ ๐๐ผ๐ป๐ฐ๐ฒ๐ฝ๐๐ ๐๐ถ๐น๐ฒ ๐๐ผ๐ฟ๐บ๐ฎ๐๐ ๐ฎ๐ป๐ฑ ๐๐ฎ๐๐ฎ ๐ฆ๐ผ๐๐ฟ๐ฐ๐ฒ๐ ๐ฎ๐ฑ๐๐ฎ๐ป๐ฐ๐ฒ๐ฑ ๐น๐ฒ๐๐ฒ๐น
Hive tutorial and interview preparation
Internal tables vs External table Meta store vs metadata Difference between different file format
What Are Accumulators, and How Do They Work?
What Are Accumulators, and How Do They Work? This is a most frequently asked PySpark interview question! Hereโs the breakdown: What Are Accumulators? How Do They Work? Example: Pro Tip:…
๐ช๐ต๐ฎ๐ ๐ถ๐ ๐๐ต๐ฒ ๐๐ฎ๐๐ฎ๐น๐๐๐ ๐ข๐ฝ๐๐ถ๐บ๐ถ๐๐ฒ๐ฟ, ๐ฎ๐ป๐ฑ ๐๐ผ๐ ๐๐ผ๐ฒ๐ ๐๐ ๐ช๐ผ๐ฟ๐ธ?
๐ก PySpark Interview Prep: ๐ช๐ต๐ฎ๐ ๐ถ๐ ๐๐ต๐ฒ ๐๐ฎ๐๐ฎ๐น๐๐๐ ๐ข๐ฝ๐๐ถ๐บ๐ถ๐๐ฒ๐ฟ, ๐ฎ๐ป๐ฑ ๐๐ผ๐ ๐๐ผ๐ฒ๐ ๐๐ ๐ช๐ผ๐ฟ๐ธ? This is a must-know PySpark interview question! Hereโs the breakdown: โ ๐ช๐ต๐ฎ๐ ๐ถ๐ ๐๐ต๐ฒ ๐๐ฎ๐๐ฎ๐น๐๐๐ ๐ข๐ฝ๐๐ถ๐บ๐ถ๐๐ฒ๐ฟ?…
How to handle skewed data in PySpark?
๐๐ผ๐ ๐๐ผ ๐ฌ๐ผ๐ ๐๐ฎ๐ป๐ฑ๐น๐ฒ ๐ฆ๐ธ๐ฒ๐๐ฒ๐ฑ ๐๐ฎ๐๐ฎ ๐ถ๐ป ๐ฃ๐๐ฆ๐ฝ๐ฎ๐ฟ๐ธ? This is a critical PySpark interview question! Hereโs the breakdown: โ ๐ช๐ต๐ฎ๐ ๐ถ๐ ๐ฆ๐ธ๐ฒ๐๐ฒ๐ฑ ๐๐ฎ๐๐ฎ? – Skewed data occurs when some partitions…
Given a code – How Catalyst Optimizer Works in This Code?
You have the following code. Explain how the catalyst optimizer works in the code? Explain in detail PySparkโs Catalyst Optimizer is a powerful query optimizer used by Spark SQL to…
Catalist optimizer : Prediction pushdown
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…