-- https://docs.oracle.com/en/database/oracle/oracle-database/23/sqlrf/ALTER-TABLE.html
CREATE TABLE students (last_name VARCHAR2(20), id NUMBER);
INSERT INTO students VALUES('Dodd', 364);
INSERT INTO students VALUES('de Niro', 132);
INSERT INTO students VALUES('Vogel', 837);
INSERT INTO students VALUES('van der Kamp', 549);
INSERT INTO students VALUES('van Der Meer', 624);