Real questions from top companies in SQL
Identify consecutive numbers in a column (at least 3 consecutive).
If manual partitions are created in a Hive data-warehouse table directory, and you query records from those partitions, will you see the data? If not, how can this be fixed?
Implement a CASE WHEN condition - medium difficulty
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
Indexing – Types and Benefits?
Indexing: When to Use and Avoid
Integration of Snowflake with external data sources such as S3, GCS, and Blob Storage?
Joins: Different types and their use cases
Kafka Basics - architecture, topics, partitions, producers, consumers, Zookeeper
Kafka Partitioning: How would you ensure even load distribution across Kafka partitions in a high-volume system?
Lead and Lag in SQL Using PySpark DataFrame API
List the different types of joins in SQL.
Managed Table vs External Table
Managed vs Unmanaged Tables
Materialized View - explain and use cases
Merge two dictionaries and remove keys with null values.
Motivation for Joining Snowflake?
Nested and Repeated Fields in BigQuery
No Column Names in CSV - how to handle
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