Real questions from top companies in SQL
How do these policies affect query performance?
How do tumbling window triggers ensure data consistency in batch processing?
How do you convert 3 rows into one column in SQL?
How do you count occurrences in a column in SQL?
How do you create a new table with the same structure as an existing one?
How do you design a scalable and fault-tolerant data warehouse on a cloud platform?
How do you find duplicates in a table based on one or two columns?
How do you get new records from a table/file without a modified column? Discuss approaches like hashing or row comparison.
How do you grant access for views?
How do you handle NULL values in a SQL query to avoid incorrect results?
How do you handle negotiations if your expected salary isn't met?
How do you handle schema evolution in data lakes or data warehouses?
How do you handle situations where you disagree with feedback from others?
How do you insert columns between others?
How do you integrate with an on-premises SQL Server without using SHIR?
How do you interact with Google BigQuery using Python?
How do you keep a specific column on top in SQL?
How do you make data ingestion fast with 5 tables of 50k records?
How do you monitor and debug skewed partitions?
How do you monitor consumer lag in Kafka, and how can you reduce it?
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