PPT Slide
OR-DBMS Technology Status
- Many OR-DBMS research results
- Postgres, EXODUS, Starburst, ...
- OODB query processing research
- Commercial systems exist today
- IBM DB2 CS (V2.1) and CA-Ingres
- User-defined types & functions, large objects, triggers
- Illustra, UniSQL/X
- Early providers of ADTs, row objects, inheritance
- IBM DB2 UDB, Informix, Oracle
- "Universal server" products contain subsets of all this stuff
- Standards right around the corner
- SQL3 is "hardening" and has an object part with structured types, table hierachies, user-defined functions and methods, object views, ....