National Australia Bank Interview Questions

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Data Structures & Algorithms
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National Australia Bank Interview Questions

Practice for the National Australia Bank interview with these recently asked interview questions.

QuestionTopicDifficulty
SQL
Medium

Given the employees and departments table, write a query to get the top 3 highest employee salaries by department. If the department contains less that 3 employees, the top 2 or the top 1 highest salaries should be listed (assume that each department has at least 1 employee). 

Note: The output should include the full name of the employee in one column, the department name, and the salary. The output should be sorted by department name in ascending order and salary in descending order. 

Example:

Input:

employees table

Column Type
id INTEGER
first_name VARCHAR
last_name VARCHAR
salary INTEGER
department_id INTEGER

departments table

Column Type
id INTEGER
name VARCHAR

Output:

Column Type
employee_name VARCHAR
department_name VARCHAR
salary INTEGER
Behavioral
Medium
SQL
Easy
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National Australia Bank Salaries by Position

Data Engineer*
$102K
Data Engineer
Median: $102K
Mean (Average): $102K
Data points: 1
$46K
$119K
Software Engineer
Median: $88K
Mean (Average): $81K
Data points: 27
$56K
$78K
ML Engineer
Median: $63K
Mean (Average): $66K
Data points: 11

Most data science positions fall under different position titles depending on the actual role.

From the graph we can see that on average the Data Engineer role pays the most with a $101,759 base salary while the ML Engineer role on average pays the least with a $65,736 base salary.

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