10+ Hitachi Rail STS Interview Questions and Answers

Bureau is a credit reporting agency that collects and maintains credit information on individuals and businesses. Credit score is a numerical representation of an individual's creditworthiness.

• Bureau is a credit reporting agency that gathers credit information from various sources such as lenders, creditors, and public records.

• Credit score is a three-digit number that represents an individual's creditworthiness based on their credit history, including factors like payment his...read more

My value addition will be my extensive experience in sales, strong leadership skills, and proven track record of exceeding targets.

• Extensive experience in sales

• Strong leadership skills

• Proven track record of exceeding targets

SQL is a programming language used for managing and querying databases. Power BI is a business analytics tool for visualizing and analyzing data.

• SQL stands for Structured Query Language and is used to communicate with databases.

• SQL can be used to retrieve, update, and manipulate data in databases.

• Power BI is a data visualization tool that allows users to create interactive reports and dashboards.

• Power BI can connect to various data sources, clean and transform data, and creat...read more

Use SQL query with ORDER BY and LIMIT to extract second highest salary

• Use SQL query: SELECT DISTINCT Salary FROM Employees ORDER BY Salary DESC LIMIT 1, 1

• Make sure to use DISTINCT to handle cases where multiple employees have the same salary

• ORDER BY Salary DESC will sort the salaries in descending order

• LIMIT 1, 1 will skip the first highest salary and return the second highest salary

Types of joins in SQL include inner join, left join, right join, and full outer join.

• Inner join: Returns rows when there is a match in both tables.

• Left join: Returns all rows from the left table and the matched rows from the right table.

• Right join: Returns all rows from the right table and the matched rows from the left table.

• Full outer join: Returns rows when there is a match in either table.