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Advanced SQL Tutorial | Practice SQL Queries with Data #sqltutorial #sqlroadmap #sql #database
SQL Functions: CASE, DECODE, COALESCE, NVL, NVL2, NULLIF – Real-Time Interview Questions In this video, we explore all the key SQL functions including CASE, DECODE, COALESCE, NVL, NVL2, and NULLIF. Each function is explained in detail with practical data examples to help you understand their usage effectively. Whether you're preparing for a ...
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