Grokking SQL for Tech Interviews
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1. High Performing Employees (Easy)
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Problem Statement

Table: Employee
Each row in this table represents an individual employee, detailing their unique ID, name, department they belong to, and their salary.

+-------------+---------+
| Column Name | Type    |
+-------------+---------+
| empId       | int     |
| name        | varchar |
| department  | varchar |
| salary      | int     |
+-------------+---------+
empId is the primary key for this table.
Each row of this table contains information about an employee, including their name, department, and salary.

Table: Performance

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