What is the role of DML operators in managing data within a database?

DML (Data Manipulation Language) operators are used to manage data within a database. They allow performing operations such as adding, modifying, deleting, and retrieving data. The main DML commands:

• INSERT — adds new records to a table.
• UPDATE — modifies existing records.
• DELETE — deletes records from a table.
• SELECT — retrieves data from tables.

Example in SQL:

INSERT INTO users (name, age) VALUES ('Ivan', 30);
UPDATE users SET age = 31 WHERE name = 'Ivan';
DELETE FROM users WHERE name = 'Ivan';
SELECT * FROM users;

Thus, DML operators enable efficient management of database contents, providing the ability to modify and retrieve data.