Answer:
See explaination
Explanation:
CREATE TABLE CATEGORY
(
cid int NOT NULL,
description varchar2(1000),
PRIMARY KEY (cid)
);
CREATE TABLE PRODUCT
(
pid int NOT NULL,
description varchar2(1000),
cid int,
price int,
p_size varchar2(1),
CONSTRAINT chk_price CHECK (price>0),
CONSTRAINT chk_size CHECK (p_size in ('S','M','L')),
CONSTRAINT fk_cid FOREIGN KEY (cid) REFERENCES CATEGORY(cid)
);
In my opinion i think it is A
False. a placeholder can hold everything
Answer:
An email is a digital message sent electronically from one computer to one or more other computers. Emails are flexible and can be used for giving instructions, serving as documentation, providing confirmation, communicating rules and procedures, making recommendations, providing a status update, making an inquiry.
