Disadvantages of Database:

  Although the database system yields considerable advantages  over previous data management approaches, database systems do  carry significant disadvantages. For example:
1. Increased costs:
   Database systems require sophisticated hardware and software        and highly skilled personnel. The cost of maintaining the                    hardware,  software, and personnel required to operate and              manage a  database system can be substantial. Training, licensing, and  regulation compliance costs are often overlooked when database  systems are implemented.
2. Management complexity:
 Database systems interface with many different technologies and  have a significant impact on a company’s resources and culture.  The changes introduced by the adoption of a database system  must be properly managed to ensure that they help advance the  company’s objectives. Given the fact that database systems hold  crucial company data that are accessed from multiple sources,  security issues must be assessed constantly.