*5 Useful SQL String Functions* 🧵🧠 1️⃣ *UPPER()* Converts text to uppercase. ```sql SELECT UPPER(name) AS upper_name FROM Employees; ``` 2️⃣ *LOWER()* Converts text to lowercase. ```sql SELECT LOWER ...
Most Common SQL Functions YouShould Know 🔢 Aggregate Functions • `COUNT()` – Counts rows ``` SELECT COUNT(*) FROM employees; ``` • `SUM()` – Adds up values ``` SELECT SUM(salary) FROM employees; ``` ...
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