This repository showcases how to design and optimize databases—SQL ... relationships and large datasets. It highlights real-world approaches for schema design, query formulation, and performance ...

CREATE INDEX idx_patient_name ON Patients(last_name, first_name); CREATE INDEX idx_admission_dates ON Admissions(admission_date, discharge_date); CREATE INDEX idx_patient_admission ON ...

All analyses and maps are progressively updated (see the update schedule) over the following six months, as new data becomes available and as the data in the climate database are improved through ...