Real questions from top companies
Design a financial database system focusing on database models, schema design, partition keys, and query optimization techniques.
Design a relational data model for a sales database, incorporating normalization techniques
Design a structure (data model) that allows efficient querying of movies based on multiple search criteria (title, genre, actor, director).
Design the data model for an ETL pipeline that ingests data from a database and loads it into Snowflake
Designing backend architecture for SQL Warehouse?
Designing scalable data models - explain approach
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Difference Between Truncate/Delete and Union/Union All – Performance and Usage
Discuss a project where you balanced business goals with technical constraints.
Discuss a project where you significantly impacted performance or cost optimization.
Discuss a project where you significantly improved the performance of a data pipeline.
Discuss a situation where you had to balance technical priorities and business goals.
Discuss how you handled null values or unstructured data in your previous projects.
Discuss strategies for handling schema evolution in data warehouses.
Does BigQuery support indexes? If not, why?
Does a Common Table Expression store data? If not, how does it function in SQL?
Duplicate characters in a string (e.g., '123a!' to '112233aa!!').
ER Modeling vs. Dimensional Modeling?
Error Handling in T-SQL - TRY...CATCH, THROW, RAISEERROR
Explain BigQuery Architecture.
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