4585. Department Top Three Salaries with DENSE_RANK (Part 43)
SQL QueriesIndexing & Optimization
### Problem #4585: Department Top Three Salaries with DENSE_RANK (Part 43)
**Domain:** `SQL & Databases` | **Topic Focus:** `SQL Queries, Indexing & Optimization`
Implement an optimized, production-grade solution for **Department Top Three Salaries with DENSE_RANK (Part 43)**.
### Requirements:
1. Your code must handle boundary inputs, edge cases, and maintain optimal time & space complexity.
2. In production, this logic scales to high-throughput environments.
3. Return the exact computed result.
Example 1:
Input: Sample Input #4585
Output: Output 1
Explanation: Demonstrates correct execution for SQL Queries in SQL & Databases.
Constraints:
- Time Complexity: Optimal for standard production loads.
- Space Complexity: O(1) auxiliary or O(N) linear storage.
- Ensure memory safety, clean error propagation, and zero race conditions.
Integrity: 100%
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Input Arguments:
Test Case 1 for #4585
Expected Output:
Output 1