Given a table Employee which has columns name and salary, write an SQL query to find the employee with the second highest salary.
1074Given a table of Player which contains Sno and player name, write a query which finds all possible Table Tennis doubles pairings.
1404Given an array of size n+1 which contains all the numbers from 1 to n.Find the number which is repeated in O(n) time.How do you proceed with the same with floating numbers from 0 to 1 instead of 1 to n?
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