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1. Define the term 'Data Wrangling. Data Wrangling is the process wherein raw data is cleaned, structured, and enriched into a desired usable format for better decision making. It involves discoverin…
✅ Basic Level (Focuses on fundamental concepts and operations in SQL, including syntax, basic commands, and the definitions of key terms.) 1. Explain the difference between drop and truncate. 2. What…
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1. Define the term 'Data Wrangling. Data Wrangling is the process wherein raw data is cleaned, structured, and enriched into a desired usable format for better decision making. It involves discoverin…
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🧠 SQL Interview Question (Self Join + Salary Comparison) 📌 employees(emp_id, manager_id, salary) ❓ Ques : 👉 Find employees whose salary is higher than their manager’s salary. 🧩 How Interviewer…
