

I started to implement the code where I inject the DbContext but I don't know how to deal with the usings in this case. I would like to have the different libraries in my application testable. I created a custom library over it, called DatabaseApi and it is mentioned in the title as "Api", where I query the data and map it to datacontract objects. So, I have an ORM layer implemented by EF6 where the objects are described and Ef does what its business, etc. Higher impact of failure: Failure is highly impacted the database because in most of the organization, all the data stored in a single database and if the database is damaged due to electric failure or database corruption then the data may be lost forever.I would like to ask some help regarding Dependency Injection and, I think, architectural approach.

Complexity: Database system creates additional complexity and requirements.Size: It occupies a large space of disks and large memory to run them efficiently.Cost of Hardware and Software: It requires a high speed of data processor and large memory size to run DBMS software.multiple user interface: It provides different types of user interfaces like graphical user interfaces, application program interfaces.
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Backup: It provides backup and recovery subsystems which create automatic backup of data from hardware and software failures and restores the data if required.Reduce time: It reduces development time and maintenance need.Easily Maintenance: It can be easily maintainable due to the centralized nature of the database system.Data sharing: In DBMS, the authorized users of an organization can share the data among multiple users.Controls database redundancy: It can control data redundancy because it stores all the data in one single database file and that recorded data is placed in the database.It can view the database from different viewpoints according to the requirements of the user.It is used to provide security of data.It is used to support manipulation and processing of data.It can reduce the complex relationship between data.It contains ACID properties which maintain data in a healthy state in case of failure.DBMS contains automatic backup and recovery procedures.

