LeetCode 627: Swap Salary Solution
Master LeetCode problem 627 (Swap Salary), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
627. Swap Salary
Problem Explanation
Explanation:
To swap the values in the 'sex' column from 'f' to 'm' and vice versa, we can use a single update statement with a CASE statement in SQL. We can update the 'sex' column based on its current value - changing 'f' to 'm' and 'm' to 'f' in the process. This solution does not require any intermediate temporary tables.
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Solution Code
# Write your Java solution here
String sqlQuery = "UPDATE Salary SET sex = CASE WHEN sex = 'f' THEN 'm' ELSE 'f' END";Try It Yourself
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