What are the advantages of dbms
Answers
The Different Advantages of DBMS
1. Improved data sharing
The
DBMS helps create an environment in which end users have better access
to more and better-managed data. Such access makes it possible for end
users to respond quickly to changes in their environment.
2. Improved data security
The
more users access the data, the greater the risks of data security
breaches. Corporations invest considerable amounts of time, effort, and
money to ensure that corporate data are used properly. A DBMS provides a
framework for better enforcement of data privacy and security policies.
3. Better data integration
Wider access to well-managed data promotes an integrated view of the organization’s operations and a clearer view of the big picture. It becomes much easier to see how actions in one segment of the company affect other segments.
4. Minimized data inconsistency
Data inconsistency exists when different versions of the same data appear in different places. For example, data inconsistency exists when a company’s sales department stores a sales representative’s name as “Bill Brown” and the company’s personnel department stores that same person’s name as “William G. Brown,” or when the company’s regional sales office shows the price of a product as $45.95 and its national sales office shows the same product’s price as $43.95. The probability of data inconsistency is greatly reduced in a properly designed database.
5. Improved data access
The DBMS makes it possible to produce quick answers to ad hoc queries. From a database perspective, a query is a specific request issued to the DBMS for data manipulation—for example, to read or update the data. Simply put, a query is a question, and an ad hoc query is a spur-of-the-moment question. The DBMS sends back an answer (called the query result set) to the application. For example, end users, when dealing with large amounts of sales data, might want quick answers to questions (ad hoc queries) such as:
- What was the dollar volume of sales by product during the past six months?
- What is the sales bonus figure for each of our salespeople during the past three months?
- How many of our customers have credit balances of 3,000 or more?
6. Improved decision making
Better-managed
data and improved data access make it possible to generate
better-quality information, on which better decisions are based. The
quality of the information generated depends on the quality of the
underlying data. Data quality is a comprehensive approach to promoting
the accuracy, validity, and timeliness of the data. While the DBMS does
not guarantee data quality, it provides a framework to facilitate data
quality initiatives.
7. Increased end-user productivity
The availability of data, combined with the tools that transform data into usable information, empowers end users to make quick, informed decisions that can make the difference between success and failure in the global economy.
Advantages of DBMS:-)
1)User friendly:-)
Once the data stored in DBMS the effort of programming reduces. One just need to know commands to access the data from the DBMS in a desired way.
2)Efficiency :-)
When a data file requires a modification in a file processing system, then all application using that file need to be written again, but in DBMS, the DBMS manages the creative modification and access to data more efficiency than a file processing system.
3) Data Reduency :-)
DBMS allows table to link with each other, thus minimise the need of duplication of data.
4) Data security:-)
DBMS provides greater level of data security then the user file processing system. With a DBMS , the sensitive data can be isolated in separate segment that prevent unauthorised application from seeing it .
5) Data inconsistency :-)
Tables in a DBMS are linked, changes in data in one table automatically updated in all other tables.