How the user requests for the required data is handled by DBMS explain with the help of example?

In a DBMS, the user requests for data by submitting queries written in a structured query language (SQL). These queries are then processed by the DBMS to locate and retrieve the requested data from the database tables. For example, a user can request all records of employees who work in a specific department by writing a SQL query that specifies the department's name and selects the relevant data fields. The DBMS then executes this query, retrieves the matching data from the database, and presents it to the user.