Explanation:
Both Primary Key and Candidate Key are the attributes that are used to access tuples from a table. These (Primary key and Candidate key) are also can be used to create a relationship between two tables.
- A Candidate Key can be any column or a combination of columns that can qualify as a unique key in the database. Each Candidate Key can qualify as a Primary Key.
- A Primary Key is a column or a combination of columns that uniquely identify a record. The primary key is a minimal super key, so there is one and only one primary key in any relationship.
<em> The main difference between them is that a primary key is unique but there can be many candidate keys. </em>
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Answer:
ipconfig
Explanation:
ipconfig (short for <em>internet protocol configuration</em>) is a command line tool used for determining the network connection configuration of a computer. Some of these configuration information are;
i. the IP address of the computer
ii. default gateway address
iii. subnet mask
iv. Media Access Control (MAC) address.
<h3>a= hybrid computer can perform the function of both analog and digital computer</h3>