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:
Explanation:
There are all sorts of possibilities for, say, inserting new technologies into existing processes. But most of these improvements are incremental. They are worth doing; in fact, they may be necessary for survival. No self-respecting airline, for instance, could do without an application that lets you download your boarding pass to your mobile telephone. It saves paper, can't get lost and customers want it.
But while it's essential to offer applications like the electronic boarding pass, those will not distinguish a company. Electronic boarding passes have already been replicated by nearly every airline. In fact, we've already forgotten who was first.
Answer: The correct answer is A. I just answered this question myself!
Answer:
Visual.
Explanation:
Some programmers include scroll bars, title bars, buttons, and menus in a program simply by adding them to a layout through a process called visual programming.
A visual programming language is also commonly referred to as graphics user interface builder (GUI builder) and can be defined as a programming tool that avails programmers the ability to develop software programs (applications) using graphical elements and figures rather than texts alone.
Some examples of visual programming language are executable UML, Blockly, Kodu, Alice, Lego mindstorms, Gamemakers etc.
