LLD - Design — Hotel Booking System
A search filter query returns no results unexpectedly. Which is the most likely cause?
A search filter query returns no results unexpectedly. Which is the most likely cause?
medium📝 Analysis Q6 of Q15
Step-by-Step Solution
Solution:
Step 1: Analyze filter combination logic
Filters combined with AND require items to match all conditions.Step 2: Reason about empty result
If no item matches all filters, result is empty.Final Answer:
Filters are combined with AND but no item matches all -> Option CQuick Check:
AND filters with no match = empty result [OK]
Quick Trick: No results often mean AND filters exclude all [OK]
Common Mistakes:
MISTAKES- Assuming OR filters cause empty results
- Blaming database status without checking filters
- Thinking index size causes no results
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