SELECT LAST_NUMBER FROM ALL_SEQUENCES WHERE SEQUENCE_NAME = 'seq_name';
ALTER SEQUENCE seq_name INCREMENT BY 100; -- Value to reach desired value - 1
SELECT seq_name.nextval FROM dual; -- Reinitialize value to desired
ALTER SEQUENCE seq_name INCREMENT BY 1; -- Back to init step
SELECT schema.seq_name.NEXTVAL FROM dual;
INSERT INTO table_name (VALUE1) VALUES (
schema.seq_name.NEXTVAL AS VALUE1
);