Tuesday, September 29, 2015

Why database management System is so helpful?

A few of the benefits are itemized as under:

DBMS: Data Consistency

It is very significant to ensure consistency while data transferring to each and every user or Group. It comprises validity, accuracy and integrity of associated data. Furthermore the database should satisfy certain consistent constraints like age, name (unique identifiers), and Roll numbers which has data type and in the specific range. It is very significant to update the database, updating the same results in reliable constraints is checking by the database systems. 

DBMS: Warehouse of Information

The motive of database management system is to store a large amount of data. The data may be of human resource handling; it frequently happens that a regular man uses a database management system, without even understanding, that it is being used. Database management systems are storehouses of information, where large amount of data can be stored. The common instances in commercial applications are record data, personnel data, etc. The best instances for the same would be the address book of a cell phone, digital diaries, etc. Both these tools store data in their internal database.

DBMS: Defining Attributes
The exclusive data field in a table is assigned a primary key. The primary key helps in the recognition of data. It also checks for carbon copies within the same table, thereby reducing data idleness. There are tables, which have a secondary key as well as the primary key. The secondary key is also known as 'foreign key'. The secondary key turns to the primary key of one more table, therefore establishing a relationship among the two tables. 

DBMS: Systematic Storage

The data is stored in the form of tables. The table contains rows and columns. The primary and secondary key aids to eliminate data redundancy, enabling systematic storage of data.

DBMS: Changes to Schema

The table schema can be altered and it is not platform dependent. Consequently, the tables in the system can be edited to add new columns and rows without hampering the applications that depend on that exacting database.

DBMS: No Language Dependence

The database management systems are not language dependent. Therefore, they can be used with various languages and on a variety of platforms. 

DBMS: Table Joins

The data in two or more tables can be incorporated into a single table. This allows to reduce the size of the database and also assists in simple retrieval of data.

DBMS: Multiple Simultaneous Usages

The database can be used at the same time by a number of users. a variety of users can retrieve the same data simultaneously. The data in the database can also be customized, based on the privileges allocated to users.

DBMS: Data Security:

Data is the vital asset. Consequently, there is a need for data security. Database management systems help to maintain the data secured.


DBMS: Privileges

Dissimilar privileges can be given to different users. For instance, some users can edit the database, but are not allowed to delete the contents of the database.


DBMS: Abstract View of Data and Easy Retrieval

DBMS allows easy and suitable reclamation of data. A database user can analyze only the abstract form of data; the difficulties of the internal structure of the database are hidden from him. The data obtained is in user-friendly format.
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