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1. WHERE, AND, OR, NOT, IN 2. ORDER BY, ASC, DESC 3. IS NULL 4. LIMIT 5. MIN, MAX, COUNT, AVG, SUM 6. LIKE, WILDCARDS 7. IN BETWEEN 8. JOINs - INNER, LEFT, RIGHT, FULL 9. Subqueries & CTEs 10. UNION 11. GROUP BY 12. HAVING 13. PARTITION BY, OVER 14. LEAD, LAG 15. RANK, DENSE_RANK, PERCENT_RANK 16. ROW_NUMBER, CUME_DIST 17. FIRST_VALUE, LAST_VALUE

Write a sql query to find the second largest number from table table_name and column number.

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WRITE A QUERY TO OUTPUT THE APARTMENTS WHOSE PRICES ARE GREATER THAN THE AVERAGE AND ARE ALSO NOT RENTED ,SORTED BY PRICE COLUMN

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Puzzle: Suppose there are 4 people and they want to pass through a bridge. Only 2 people can go through a bridge at a time and they can travel through a bridge only with a torch and they have only one torch with themselves. Find the minimum time required to pass the bridge by four of them. 1st person takes 1 min, 2nd takes 2 min, 3rd takes 5 min, 4th takes 10 min.

Top 9 Python Libraries for Machine Learning in 2021NumPy.SciPy.Scikit-learn.Theano.TensorFlow.Keras.PyTorch.Pandas.

SQL BASICS