(inconsistency- unchanging)
example:-
If a student want to make change in his records, the changes must be made in each and every pages that needs changes..
ex:- if a student changes his address, the new address must be changed in all applications in the institution that require address. The changes doesn't occur automatically in all pages when it is made in one page.
Redundancy
Redundancy - Repetative storage of data leading to possible multiple versions and/or ill utilisation of data storage capacity. Inconsistency - Failure to adhere to standardised storage of data; usage of varying formats, non-confirmation to standardised/defined methods to store similar/related data.
Data redundancy
System data duplication, or denormalization, causes excess use of redundant storage, excess time processing queries, and possible inconsistency when de-normalized data is changed in one place but not the other. (Any one else have examples? Please enhance this answer. Thank you.)
Data that has been processed by a computing system but not yet organized into information.
• Data duplication• Data inconsistency or update/deletion/insertion anomalies• Data integrity errors (due to data inconsistency)• Inconsistent search results in multi-value fields
Data inconsistency exists when different and conflicting versions of the same data appear in different places. Data inconsistency creates unreliable information, because it will be difficult to determine which version of the information is correct. (It's difficult to make correct - and timely - decisions if those decisions are based on conflicting information.) Data inconsistency is likely to occur when there is data redundancy. Data redundancy occurs when the data file/database file contains redundant - unnecessarily duplicated - data. That's why one major goal of good database design is to eliminate data redundancy.
Redundancy
Redundancy - Repetative storage of data leading to possible multiple versions and/or ill utilisation of data storage capacity. Inconsistency - Failure to adhere to standardised storage of data; usage of varying formats, non-confirmation to standardised/defined methods to store similar/related data.
Data inconsistency
Data redundancy Lack of data redundancy Data inconsistency Data security
Duplication of data is data redundancy. It leads to the problems like wastage of space and data inconsistency.
* Data redundancy and inconsistency. * Data isolation * Problem in atomicity of data * Difficulty to access data. * Security Problems
Advantages provided by a database system are : a) Redundancy of data is reduced. b) Secured data. c) Controlled data inconsistency. d) Integrated data. e) Standardized data
To integrate has two separate meanings. It might mean simply that different sets of data are put together. It can also refer to a mathematical process which is part of the calculus.
It Occures When The Same data Dosent Matches Each Other In Various Relations(Tables) take an exp of this,suppose a publisher request for change his address is stored in a book as well as , if address of publisher is not modified in any of two field than the same publisher will have diff. address into diff. field .This is known as data inconsistency
Inconsistencies is the plural of inconsistency