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 ...

We've also listed the best SQL online courses ... MySQL is increasingly in competition with other database types, not least PostgreSQL and non-relational databases such as NoSQL, Microsoft ...

Extended support for Oracle Database 19c will last until 2032, with caveats. Still no news of an on-prem edition of Oracle Database 23ai. Data must be protected no matter where it's stored or how ...

A Visual History of Guerrilla Warfare From 1775 to 2012 The interactive Invisible Armies Insurgency Tracker presents a database of insurgencies from 1775 to 2012. It supplements the comprehensive ...

Slideshows ...

The Met Police is set deploy permanent live facial recognition cameras on street furniture in Croydon from summer 2025, but local councillors say the decision – which has taken place with no ...

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 ...