PPT Slide

Legacy Data Access Challenges

• Some data will live outside the OR-DBMS
  • Older DBMSs (both relational & pre-relational)
  • Specialized data stores (documents, images, ...)
  • Applications (i.e., legacy transactions)

• Object-relational middleware is the answer!
  • Table functions can handle simple cases now
  • Distributed OR query engine (a la DataJoiner) can mediate between new applications and legacy data
  • Resulting appearance is that of an integrated OR database, accessible via SQL3 APIs and OO tools

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