Apple Data Manipulation (SQL/Python) Questions (Updated 2025) | PracHub

Apple Data Manipulation (SQL/Python) Interview Questions

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Detect sessions and gaps using SQL LEAD

Write a single ANSI-SQL query that (a) assigns per-user session_ids when the gap between consecutive events exceeds 30 minutes, (b) computes session_s...

Data Manipulation (SQL/Python)

Analyze TSV File for User Page Visits and Patterns

visits +-----------+-----------+------+ | person_id | timestamp | page | +-----------+-----------+------+ | 1 | 100 | A | | 1 ...

Data Manipulation (SQL/Python)

Compute and Rank Store Revenue by Region Using Pandas

Sales +------------+---------+------------+--------+---------+ | date | store_id| product_id | units | revenue | +------------+---------+------...

Data Manipulation (SQL/Python)

Software Engineer

Explain Python lists, dicts, and concurrency

Explain the differences between Python lists and dictionaries (maps), including common operations and their average time complexity, iteration order g...

Data Manipulation (SQL/Python)