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Data redundancy

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When the same data are stored in many places?

Data redundancy


Data are information about people places and things that can be measured with numbers?

Data is not information. Data are the individual elements such as names, addresses, dates and so on. It is not just numbers. Information can be derived from data. So a list of ages is data. Information would be things like the average of those ages or the highest age. Dates of birth are data. Finding how many people out of the list were born in April is information.


What kind of information can be stored in a database?

Strictly speaking, no information is stored in a database, data is. There is a difference. Data is things like names, addresses, dates of birth etc. Information is what you can get from that data. So if you have a list of dates of birth, it does not specifically say who is the oldest person. By looking through the data, you can find that information. You could get a total of how many people have their birthday in a particular month. The data will not say something like "There are 7 people who were born in the month of February." All that is there is the list of actual dates of birth. You can derive that information from the database. Data is stored in different forms, such as plain text, numbers, dates, times, logical data


Explain Internal Level of a database?

The third level of the architecture is the internal level. The internal view is a low level representation of the entire database; it consists of many occurrences of each of many types of internal record. "Internal record" is the ANSI/SPARC term for the construct that we have been calling a stored record.


What are data models in dbms?

A data model is a collection of concepts that can be used to describe the structure of a database. Data models can be broadly distinguished into 3 main categories- 1)high-level or conceptual data models (based on entities & relationships) It provides concepts that are close to the way many users perceive data. 2)lowlevel or physical data models It provides concepts that describe the details of how data is stored in the computer. These concepts are meant for computer specialist, not for typical end users. 3)representational or implementation data models (record-based,object-oriented) It provide concepts that can be understood by end users. These hide some details of data storage but can be implemented on a computer system directly.

Related Questions

When the same data are stored in many places?

Data redundancy


How data was stored before MS Access?

Microsoft Access was not the first database, so there were many database programs before it that would have held data and there are many database programs now. Data is of course stored in paper form too.


How many layers of data can be stored on one side of BD-ROM?

2


How many bit data can be stored in one memory location of 8086 microprocessor?

8


How many decimal places are added to the data in a Microsoft Excel?

You can choose how many you want. The standard settings have no decimal places or two decimal places.


How many register in computer?

There are 14 Regiters in the computer where data is stored which is currently being process


How many layers of data can be stored on a one side DVD?

up to 2 per side


Does The Fibonacci sequence occurs in nature?

Yes, it occurs in many places. Some examples are branching in trees and pine cones.


Who keep the declaratuion of independence?

The Decleration of Independence has been stored in many places over the years. It is currently stored in the National Archives in Washington, DC.


For how many years data remains stored in server?

the data remain for ever unless and until it is deleted by someone...thts one of the advantage of servers


What the mean of data archieves?

A data archive is information stored in other locations to be retrieved later. Data can be archieved in many formats and on many types of storage devices. FOr more information on file storage, visit Answers.com


How is data warehouse different from a database?

A database is a storage of data in its most generic form. Data stored in a data might be used for data warehouse, CRM or many other types of data management uses. A simple database is used in many common computer applications from virus checkers, where data is stored about every known computer virus, to movie editing software where video clips are stored in a database as they are edited. A data warehouse describes a specific type of database application that is usually used for analytics. Data warehouse also implies some set of processes for the data within, as well as some business value from the analytics. A data warehouse could be a a collection of databases related to the analytical mission.