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)
);
Answer:
Referencial Integrity Contraint
Explanation:
The referential integrity constraint states that the customer ID i.e (CustID) in the Order table must match a valid CustID in the Customer table. Most relational databases have declarative referential integrity. That is to say, when the tables are created the referential integrity constraints are set up so as to maintain the quality of information.
Your answer is -
B. Folder Is the best place to save it
