Query to Find Monthly Salary of Employee if Annual salary is Given?

• Interview Question:-

How to find Monthly Salary of Employee from Employee table if annual salary is given?

• Answer:

   select Employee_name,Salary/12 as ‘Monthly Salary’ from employee;

• Explaination of Query :

As this query is really very simple to look but in this simple query we are explaining the concept of aliases.Following are the steps of executing this Query:

• step1:

      Select * from Employee;

Output:

Employee_num	Employee_name	Department	Salary
1	Amit	OBIEE	680000
2	Rohan	OBIEE	550000
3	Rohit	OBIEE	430000

• Step2 :

After this  We need to fetch only 2 columns from the Employee table.So following is the query to fetch required columns:

   Select Employee_name,Salary from Employee;

Output:

Employee_name	Salary
Amit	680000
Rohan	550000
Rohit	430000

• Step3:Fetch the actual records from query

select Employee_name,Salary/12 as ‘Monthly Salary’ from employee;

Output:

Employee_name	Monthly Salary
Amit	56667
Rohan	45833
Rohit	35834

Here in above query we are taking alias for Salary column.Alias concept is very useful to give the business meanings (as per requirements) to the table column.We will directly divide the column which has number,float,double or any other numeric datatype.In above example we have considered the datatype as integer number so results of query has been rounded off.So In SQL you can directly divide salary by 12 so that you will Find Monthly Salary of Employee.There is no need to use calender functions,Month functions in Oracle.

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