Real questions from top companies in SQL · hard
Features of NoSQL Databases
Given a CSV file with raw customer transactions, design an ETL pipeline that cleans data, aggregates total sales by region and product, and loads into target table
How can you automate data insertion into BigQuery using Python?
How did you manage a situation where you lacked knowledge for a task?
How do you design a scalable and fault-tolerant data warehouse on a cloud platform?
How do you handle situations where you disagree with feedback from others?
How does AQE optimize join operations dynamically?
How does it differ from static partition pruning?
How to Use Dataflow with BigQuery
How would you design a data model for an e-commerce platform?
How would you optimize a SQL query for better performance when working with large datasets?
In Python, process a large CSV in chunks and remove duplicate records based on email and timestamp.
Indexing - True/False question on indexes and query optimization
Kafka Basics - architecture, topics, partitions, producers, consumers, Zookeeper
Motivation for Joining Snowflake?
NoSQL Database - Cassandra fundamentals
Optimization Techniques Beyond Repartitioning and Caching
Optimization techniques - partitioning, caching, broadcast joins, bucketing
Optimization: Performance tuning strategies and temporal tables
Query Optimization Strategies
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