Final answer:
To find a student record by id in SQL, use the SELECT statement on the appropriate table, such as 'SELECT * FROM students WHERE id = 123456789;'. The query retrieves all information for the student with that particular id.
Step-by-step explanation:
The SQL statement to find the student record with a specific id, such as 123456789, requires reference to the table that contains the student information. Presuming the table is named students, the SQL statement would be:
SELECT * FROM students WHERE id = 123456789;
This query selects all columns (*) from the students table where the id column matches the value 123456789. Ensure that the table name and column names correspond to those in your actual database schema.