Real questions from top companies in SQL · easy
Slowly Changing Dimension (SCD) Type 4 - describe hybrid approach
Stored Procedures in SQL
Strategies for working with busy team leads?
Tasks where the candidate faced failure and lessons learned.
Tell us about a project where you optimized an existing process or pipeline. What was the impact?
Use cases for internal staging in Snowflake?
Using Airflow to trigger and manage ETL jobs?
What are Assert Transformations, and where are they used?
What are the benefits and drawbacks of using compression encodings in Redshift?
What are your expectations for the role beyond the salary?
What if another company offers a better salary—would you stay or leave?
What is BigQuery Cache?
What is the difference between Data Lakehouse, Delta Lake, and a Data Warehouse?
What is the difference between SELECT, COUNT(*), and COUNT(1)?
What is the purpose of Delta format, and how does it differ from Parquet in terms of storage and querying?
What is the stored procedure syntax and execution?
What is your notice period, and are you interviewing elsewhere?
When can you start if selected?
Where to store secret keys?
Write SQL query for sum of marks grouped by student.
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