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I applied via Referral and was interviewed before Mar 2023. There were 2 interview rounds.
Mutable data structures can be modified after creation, while immutable data structures cannot be changed once created.
Mutable data structures allow for in-place modifications, while immutable data structures require creating a new instance when modifications are needed.
Examples of mutable data structures include lists, dictionaries, and sets in Python.
Examples of immutable data structures include tuples and strings in
I was interviewed before Mar 2023.
3 to 4 SQL queries based upon tables
Optimizing queries involves using indexes, limiting the number of columns retrieved, avoiding unnecessary joins, and using appropriate data types.
Use indexes on columns frequently used in WHERE clauses
Limit the number of columns retrieved to only those needed
Avoid unnecessary joins by denormalizing data when possible
Use appropriate data types to minimize storage and improve query performance
I applied via Naukri.com and was interviewed in Jul 2021. There were 3 interview rounds.
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