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Data Base Architecture:

  • A database architecture is represented as DBMS Design.
  • Helps to design, develop, implement and maintain the database management system.
  • Database system that can be divided into individual components which can be modified, changed, replaced and altered can be achieved by using DBMS Architecture.
  • Components of database can also be understood by this architecture.
  • Critical information can be stored in a database which helps to access the data quickly and securely.

Types of DBMS Architecture:

One Tier Architecture:

  • It is a simplest architecture in which client, server, and database are in the same system.
  • Database is directly available to the user in this architecture. User can directly use the DBMS.
  • Any modification done in this architecture will be directly done on the database. It does not provide any tool for the users.
  • This type of architecture is used for the local application development, where programmers can directly communicate with the database for speedier response.

Two Tier Architecture:

  • It is a database architecture where the presentation layer runs on client and data is stored on a server called second tier.
  • It is not exposed to user directly and provides security to the database.
  • It provides direct and speed communication.
  • It i s same as the basic client server. In this architecure applications on the client end can directly interact with database at the server side.
  • At the client end the user interfaces and application programs are executed.
  • Query processing and transaction management functions are done by the server.
  • To communicate with the DBMS, client-side application establishes a connection with the server side.

 

 

Three Tier Architecture:

  • Contains another layer between the client and server. In this architecture, communication between client to server is not possible.
  • Client end application interacts with application server which further communicates with the database.
  • In the application server, end user does not have any idea about the existence of the database
  • The database also has no idea about any other user beyond the application.
  • The 3-Tier architecture is used in case of large web application.

 

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