Essential Concepts for Interview Preparation
Top 10 SQL Concepts for Job Interviews
1. Aggregate Functions (SUM/AVG)
2. Group By and Order By
3. JOINs (Inner/Left/Right)
4. Union and Union All
5. Date and Time Processing
6. String Proces
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Payal Manghnani
Stealth • 11d
Essential Python Topics for Data Analysts 😄👇
- Data Structures: Lists, Dictionaries, Sets, and Tuples.
- NumPy: Array manipulation for numerical operations.
- Pandas: Data manipulation and analysis with DataFrame.
- Data Cleaning: Handling missin