WHENEVER SQLERROR EXIT SQL.SQLCODE

CREATE TABLE dds_employees (
  employee_id NUMBER PRIMARY KEY,
  first_name  VARCHAR2(50) NOT NULL,
  last_name   VARCHAR2(50) NOT NULL,
  email       VARCHAR2(80) NOT NULL,
  manager     VARCHAR2(80),
  ssn         VARCHAR2(30),
  salary      NUMBER(12,2),
  phone       VARCHAR2(30)
);

