J. j. keller & associates, inc. Interview Questions

Overview

since our beginning as a one-man consulting firm in 1953, j. j. keller has grown to become the most respected name in safety and compliance. serving over 600,000 customers — including 90% of the fortune 1000 — we provide the compliance and safety solutions and services businesses need. as the trusted source for dot / transportation, osha / workplace safety, human resources, construction safety, and hazmat regulation compliance products, professionals everywhere rely on our expertise to help reduce risk, comply with government regulations, and follow best practices. we also offer a large selection of services and web-based applications to help you manage everything from log auditing, hours of service data and csa program administration to hr programs, osha safety and workers'​ compensation. j. j. keller has the experience and understanding needed to successfully partner with government organizations at all levels. for example, we are proud to provide products and services for several fe

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J. j. keller & associates, inc. Interview Questions

Practice for the J. j. keller & associates, inc. interview with these recently asked interview questions.

QuestionTopicDifficulty
SQL
Easy

Write a SQL query to select the 2nd highest salary in the engineering department.

Note: If more than one person shares the highest salary, the query should select the next highest salary.

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
salary INTEGER
SQL
Medium
Data Structures & Algorithms
Easy
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