Final answer:
A right join between employees and sales transactions tables shows all the sales transaction records with matching employee data when available; sales without corresponding employees will display null for employee fields.
Step-by-step explanation:
A right join between two tables in a database, such as the employees (left table) and sales transactions (right table), would show all records from the right table (sales transactions), and the matched records from the left table (employees). If there are any records in the sales transactions table that do not have corresponding entries in the employees table, those records will still be shown, but with null values in the fields from the employees table.
For example, if the sales transactions table has records of sales made by various employees and the employees table lists all employees, a right join would show every sale, including those made by employees who may no longer work at the company (hence they are not listed in the employees table anymore).