LastName alphabetically between "Brooks" and "Gray"?
Interviewer Expectations for this Question
01
Core Competency
Assesses fundamental understanding of SQL & Databases conventions, runtime behavior, and memory/performance considerations.
02
Evaluation Criteria
Hiring managers look for precision, avoidance of ambiguous jargon, and ability to explain trade-offs under real production conditions.
Comprehensive Model Answer
Verified Solution
To select records alphabetically between two string boundaries, use the BETWEEN operator:
SELECT *
FROM Customers
WHERE LastName BETWEEN 'Brooks' AND 'Gray'
ORDER BY LastName ASC;
### Collation Warning:
String range ordering is governed by the database table's collation (e.g. whether uppercase letters precede lowercase, or whether accented characters are sorted together). Furthermore, a name like 'Gray' will match, but 'Grayson' will not because 'Grayson' is alphabetically greater than `'Gray'"".
Candidate Response Strategy & Interview Tips
- Start with a concise one-sentence summary: Deliver a direct, confident answer first before expanding into nuances.
- Demonstrate real-world trade-offs: Discuss where this approach excels and when you would avoid it in production systems.
- Discuss complexity & edge cases: Proactively explain time/space complexity or boundary conditions (null values, scale limits).
- Prepare for interviewer follow-ups: Technical hiring panels frequently probe deeper into concurrency, backward compatibility, or alternative libraries.