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SQL vs. NoSQL Databases The choice between SQL and NoSQL impacts how your application stores, scales, and manages data. SQL (Relational Databases) SQL databases use a structured, table-based format with rows and columns. They rely on a predefined schema, meaning you must define the data structure before adding any information. Strengths: Excellent for complex queries, multi-row transactions, and maintaining strict data integrity (ACID compliance). Best Use: Financial systems, accounting software

SQL Challenge 1 🔥 Nay thử sức một chút với SQL cực kì basic nhé: Tìm mức lương cao thứ hai trong bảng Salary. Hãy ấn dừng video và tự viết truy vấn trước khi xem đáp án nhé ✅ #dataanalytics #DA #SQL #sql #fyp