SQL is still the connective tissue of every modern data stack—from cloud warehouses to mobile apps. Recruiters know it, too: employer demand for SQL skills grew 46% year-over-year, according to labour ...

Nearly every major product family needs immediate patching, from Windows to Office to Microsoft Edge, SQL Server, and even ...

Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.

-- Without ORDER BY, previous row has no clear meaning. -- Here previous salary is calculated inside each department only. -- So department becomes the partition/window. -- For every department, ...

-- but all employee rows still remain visible. -- The "window" here is all rows belonging to the same department_id. -- PARTITION BY does NOT merge rows like GROUP BY. -- It only creates separate ...