Drawbacks of using file systems to store data Data redundancy and inconsistency Multiple file formats,duplication of information in different files Database Difficulty in accessing data systems Need to write a new program to carry out each new task provide solutions to Data isolation-multiple files and formats all these problems ■Integrity problems Integrity constraints (e.g.account balance 0)become part of program code,Hard to add new constraints or change existing ones ■ Concurrent access by multiple users ■ Security problem„Data redundancy and inconsistency Multiple file formats, duplication of information in different files „Difficulty in accessing data Need to write a new program to carry out each new task „ Data isolation — multiple files and formats „ Integrity problems Integrity constraints (e.g. account balance > 0) become part of program code, Hard to add new constraints or change existing ones „ Concurrent access by multiple users „ Security problem … Drawbacks of using file systems to store data Database systems provide solutions to all these problems