In a DBMS and C++ Lab context, finding the registration numbers and owner names generally refers to retrieving selected records from a database table using an SQL query. Suppose a database contains a table named `Vehicle` with fields such as `Registration_No`, `Owner_Name`, `Vehicle_Type`, and `Model`. The registration number uniquely identifies a vehicle, while the owner name identifies the person who owns it. If the requirement is only to display registration numbers and owner names, the appropriate SQL command is: ```sql SELECT Registration_No, Owner_Name FROM Vehicle; ``` The `SELECT` statement is used to retrieve data from one or more columns of a database table. Here, `Registration_No` and `Owner_Name` are the required columns, while `Vehicle` is the table from which the information is obtained. The semicolon indicates the end of the SQL statement. For example, consider the following records in the `Vehicle` table: ```text Registration_No Owner_Name ----------------- ---------------- DL01AB1234 Rahul Sharma MH12CD5678 Priya Singh UP32EF9012 Amit Kumar KA05GH3456 Neha Verma ``` Executing: ```sql SELECT Registration_No, Owner_Name FROM Vehicle; ``` will produce: ```text Registration_No Owner_Name ----------------- ---------------- DL01AB1234 Rahul Sharma MH12CD5678 Priya Singh UP32EF9012 Amit Kumar KA05GH3456 Neha Verma ``` Thus, the query extracts only the required attributes rather than displaying all the information stored in the table. If the table contains additional fields such as address, phone number, vehicle price, or registration date, those fields will not be displayed because they have not been specified in the `SELECT` clause. In DBMS, this operation is an example of projection, where particular columns are selected from a relation. It is an important feature of relational databases because users generally require only specific information from a large collection of records. Selecting only necessary fields reduces unnecessary output and makes the result easier to understand. If the table has a different name, the query can be modified accordingly. For example, if the table is named `OwnerVehicle`, the query becomes: ```sql SELECT Registration_No, Owner_Name FROM OwnerVehicle; ``` Similarly, if the column names are `RegNo` and `OwnerName`, the query would be: ```sql SELECT RegNo, OwnerName FROM Vehicle; ``` The exact column and table names must correspond to the database schema. Sometimes the requirement may be to find the registration number and owner name of a particular vehicle. In that case, a `WHERE`