Web Reference: Complete the study plan to win the badge! Welcome to Day 1 of our 30-day SQL challenge series! In this video, we dive into the world of SQL queries by tackling a LeetCode problem. May 13, 2025 · Write an SQL query to retrieve the unique ID and name of each employee. If an employee does not have a unique ID, return NULL in the unique_id column. Return the result in any order. Example 1:...
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