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Corporations
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∙ 10y ago
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What are three key economic questions?
The three key economic questions are: What to produce? How to produce it? Who will consume it?
A nations plan for answering the key economic problems is called its economic?
Economic System
What is strong entities vs weak entities?
The table that has primary key is strong entity and the table that has no primary key is weak entity
What three key economic decisions must every economic system make?
The three key economic decision of every economic system are price, how much to produce, and where to sell the product. This follows the principles of the laws of supply and demand.
Which of the following is not an economic goal that influences how societies answer the three key economic questions?
In order to know which of the following is not an economic goal that influences how societies answer the three key economic questions one would need to know the answer choices.
Which field MS Access will not allow you to delete?
A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.
What are the key roles or niches that organism fill in their habitat?
The key roles or niches that organisms fill in their habitat are producers, primary and secondary consumers (herbivores, carnivores and omnivores), predators, prey, scavengers and decomposers.
Can super key be as primary key?
I think super key is treated as the primary key because in a table their will be only one primary key.
What are the importance of primary key?
Importance of primary key
What does the primary key in a data base do?
We know that primary key is the one that is not null and is always unique. A primary key uniquely identifies a record in a table.
What are the advantage of primary key?
Primary key that is used to identify a record uniquely. Primary key is a key that always unique and not null. A system generated primary key is called surrogate key.Primary key is the one which is always unique and not null. Advantage of primary key that it helps in identifying a tuple uniquely.
What is the primary key for the properties table?
Primary key is to set property ID as the primary key for the properties table.
How you create or assign primary key?
A primary key is never null and is also unique . Example of primary key is create table emp (ecode integer NOT NULL PRIMARY KEY);
Why do you designate one of the candidate key of relation to be the primary key?
We designate one of the candidate key of a relation to be a primary key because that primary key is use for any foreign key references.
Candidate key and primary key differnece?
All Primary keys are definitely Candidate Keys. A Candidate key is one which can be used as a Primary key that is not null and unique. That is one of the candidate keys can be chosen as a primary key.A Candidate key is a Unique Key and it can be used to find out any particular Tuple (row) in a table. The following are the differences between A Candidate key and a Primary Key: 1) A Unique key can be null but not a Primary key 2) On a table we can have only 1 primary key but 'N' number of unique keys.
What is the primary function of education as a social institution?
The primary function of education as a social institution is to transmit knowledge, skills, and cultural values from one generation to the next. It also helps in socializing individuals, providing opportunities for personal development and promoting social mobility. Education plays a key role in shaping individuals and preparing them to contribute to society.
Can a primary key refer to a whole table?
No, a primary key do not refers to the whole table .A primary key refers to a field in the table that is not null and unique.
