24 Nov 2025
đź“…Day 18 of my #SQL21DayChallenge with @IndianDataClub x @dpdzero
Learned UNION & UNION ALL to combine result sets.
Challenge: Build a unified list of patients staff from surgery/emergency with ID, name, type, and service—ordered by type, service, and name.
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24 Nov 2025
📅Day 17 of my #SQL21DayChallenge with @IndianDataClub x @dpdzero 🚀
Learned subqueries in SELECT & derived tables.
Built a report showing services’ total admissions, difference from avg, and rank (Above/Avg/Below).
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