Answer:
c. This would reduce the number of tuples to involve in the join resulting in a more efficient query.
Explanation:
SQL or structured query language is a database querying language used to communicate or interact with databases. A database query could be as simple as returning all the columns from a database table to complex like joining several query results which in turn forms an algebra expression.
Every query statement or expression is executed with time, execution time needs to be minimized for efficiency, so, a well-arranged and reduced joining in the query improves the efficiency of the query.
Answer: Storage
Explanation:
Storage means means saving data in computer memory. Memory refers to the location which is meant for short-term data, while storage is the part of the computer system that allows an individual to store and also access data on long-term basis.
It should be noted that typically, storage usually comes in form of a hard drive or a solid-state drive.
Answer:
Examine the sources cited by the website
Explanation:
Due to the ability for everyone to create a website, and that there are no governing standards on the quality of information given on websites, it is important when conducting research to ensure that the sources on the web are up to date, accurate, and provide an objective view
Therefore, it is important to go through and examine the website critically using the the following criteria
1) The website coverage
2) The currency of the website's information
3) Weather the website is objective or not
4) The identity of the author of the website and the ability to contact the author
5) The accuracy of the information contained in the website
