Prerequisite SQL

CREATE TABLE TRUNC_TEST(N1 NUMBER, N2 NUMBER, N3 NUMBER);

INSERT INTO TRUNC_TEST VALUES(1,2,3);
INSERT INTO TRUNC_TEST VALUES(5,4,6);
INSERT INTO TRUNC_TEST VALUES(6,7,8);

SELECT *FROM TRUNC_TEST;

TRUNCATE TABLE TRUNC_TEST;

SELECT *FROM TRUNC_TEST;