The First Normal Form (1NF) in database management, defined by EF Codd, states that a table should not contain multivalued attributes. This means that in a single row, a specific attribute should not hold more than one value. For example, if a student table includes multiple courses for a single student, it violates the 1NF rule. To represent this correctly, the table should be adjusted so that each attribute contains only a single value. A proper representation would involve creating multiple rows for a student who enrolls in more than one course, rather than listing multiple courses in one cell. For instance, if Sai is enrolled in C and C++, the table would have separate entries for each course rather than combining them. To convert an existing table into 1NF, one can decompose the rows while ensuring that attributes such as roll number, name, and course maintain uniqueness. It's important to note that values in certain columns cannot act as primary keys due to repetition. In the given examples, while roll numbers and names repeat, the course attribute does too, meaning it cannot serve as a primary key either. Hence, a proper normalization approach is vital for database design, ensuring that each attribute adheres to the 1NF guidelines.