Is it possible to add a new record to a table that lacks a primary key?

Technically, in databases, you can add a record to a table without a primary key if the DBMS allows it. However, the absence of a primary key is considered bad practice because it ensures data uniqueness and integrity.

If the table does not have a primary key, you can insert a new record with a standard SQL query:

INSERT INTO table_name (column1, column2) VALUES (value1, value2);

But it is important to understand that without a primary key:

• It is difficult to uniquely identify records.
• Duplicates may occur.
• Some ORM tools and utilities may not work correctly.

Therefore, it is recommended to add a primary key, even if it is an artificial identifier (for example, an auto-incrementing field).