Data Engineering Interview Kit (Handwritten Notes) with AZ IT Solutions

140 data engineering interview questions, each with a model answer, written as easy-to-follow handwritten-style notes with diagrams, memory tricks and common interview traps.

Inside (85-page PDF):

• 70 SQL questions: joins, window functions, CTEs, dedup, SCD, gaps & islands, tuning
• 50 PySpark & Delta Lake questions: skew, AQE, caching, UDFs, MERGE, streaming
• 20 real-world design scenarios
• Likely follow-ups, a 14-day prep plan and a last-night revision sheet

Instant PDF download. Licensed for personal use only.