Databases and types of databases


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Databases and types of databases

  2. 2. Disclaimer: This presentation is prepared by trainees of baabtra as a part of mentoring program. This is not official document of baabtra –Mentoring Partner Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt . Ltd
  4. 4. A collection of interrelated data stored together to serve multiple applications
  5. 5. WHY USE DATABASE..??? Reduces data redundancy Controls data inconsistency Facilitates sharing of data Ensures data security
  6. 6. RELATIONAL DATABASE A relational database is an organized storage of data in tables. Tables consist of rows and columns. The columns constitute the attributes. The rows constitute tuples. Relational schema or relational data model.
  7. 7. DOCUMENT ORIENTED DATABASE A computer program designed for storing, retrieving and managing document oriented information. It does not require that every record contain the same fields
  8. 8. Document 1 { FirstName: "Bob", Address: "5 Oak St.", Hobby: "sailing" } Document 2 { FirstName: "Jonathan", Address: "15 oak Pnt Road", Children: [ {Name: "Michael", Age: 10}, {Name: "Jennifer", Age: 8}, {Name: "Samantha", Age: 5}, {Name: "Elena", Age: 2} ] }
  9. 9. Document oriented database
  10. 10. EMBEDDED DATABASE The databases consist of data developed by individual end users. Examples of these are collection of documents, spreadsheets, presentations, multimedia and other files.
  11. 11. Embedded Database
  12. 12. GRAPH DATABASE  A graph database is a database that uses graph structures with nodes, edges, and properties to represent and store data. Storage system that provides index-free adjacency. Every element contains a direct pointer to its adjacent elements.
  13. 13. Graph Database
  14. 14. HYPERTEXT DATABASES Hypertext databases are particularly useful for organizing large amount of disparate information. For example they are useful for maintaining online encyclopaedias
  15. 15. Hypertext Database
  16. 16. OPERATIONAL DATABASE Operational databases are used to store the detail operations of an organization. It distinctly represents different operations within an organization.
  17. 17. Operational Database
  18. 18. DISTRIBUTED DATABASE A database in which storage devices are not all attached to a common processing unit. It may be stored in multiple computers located in the same physical location , or, May be dispersed over a network of interconnected computers.
  19. 19. Distributed Database
  20. 20. FLAT FILES The flat file style of database are ideal for all small amounts of data that needs to be human readable or edited by hand
  21. 21. Flat Files
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