How do I use DELETE queries in SQL?

How do I use DELETE queries in SQL?

To use a DELETE query in SQL, you can use the syntax: DELETE FROM table_name WHERE condition; This will remove records that meet the specified condition.

Can you give me an example of a DELETE query?

Sure! If you have a table called 'employees' and you want to delete an employee with the ID of 5, you would write: DELETE FROM employees WHERE id = 5;.

What happens if I don't use a WHERE clause?

If you omit the WHERE clause, all records in the table will be deleted. For example, DELETE FROM employees; will remove all employees.

Is there a way to undo a DELETE operation?

Once a DELETE operation is executed, it cannot be undone unless you have a backup or are using a transaction that you can roll back.