Answer:
i need this for a challenge
Explanation:
Answer:
Explanation:
Duplicate tuples are not allowed in a relation because the specifications of the constraints of the regional integrity are violated, especially the main constraint that states that there can be no identical values for the attributes of two tuples at any database relation state.
Also, duplicate tuples are not allowed in a relation due to the fact that they lead to redundancy of the data base which in turn, slowing down the speed of the database when data processing such as inserting, querying, updating, deleting, etc are being performed.
Answer:
A well design input screen should:1.Be titled2.Navigation aids should be used
Explanation:
Answer:
Option E Components that interact to produce information
Explanation:
Information system is a system to collect, analyze and disseminate information. An information system consists of five components that work with each other to produce information:
- Computer hardware - physical machine that works with information
- Computer software - a set of computer instructions that tell computer hardware how to perform a task
- Telecommunications - components that connect a group of hardware as to establish a network. This usually includes WiFI technology.
- Databases and data warehouses - the place where the digital data are kept and retrieved.
- Human resources and procedures - human expertise that run the system by following some standard procedures.
Answer:
The simplest of table parameters are rows, columns, page number, alternate row, column header, Table title, etc.
Explanation:
The simplest table parameter is as being mentioned above. Its, however, important to understand what are the parameters. Parameters are the features of an object that defines its behavior. Various parameters are the behaviors of the object hence, and here it is the table and the behavior of the table is being described with the parameters. There are so many other parameters that one can think of related to tables. And we should make a list of them for future studies. Font size, Font color, border, etc are some more from the huge list.
