WHENEVER SQLERROR EXIT SQL.SQLCODE

CREATE TABLE dds_orders (
  order_id      NUMBER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
  customer_name VARCHAR2(100) NOT NULL,
  region        VARCHAR2(30) NOT NULL,
  seller        VARCHAR2(60) NOT NULL,
  amount        NUMBER(12,2) NOT NULL,
  margin        NUMBER(12,2) NOT NULL
);

