What consulting groups are available for the Oracle product?

Ellison was inspired by the paper written by Edgar F. Codd on relational database systems named A Relational Model of Data for Large Shared Data Banks. He had heard about the IBM System R database from an article in the IBM Research Journal provided by co-founder Ed Oates, also based on Codd's theories, and wanted Oracle to be compatible with it, but IBM stopped this by keeping the error codes for their DBMS secret. He founded Oracle in 1977 under the name Software Development Laboratories. In 1979 SDL changed its name to Relational Software, Inc. (RSI). In 1983, RSI was renamed Oracle Systems to more closely align itself with its flagship product Oracle database with Robert Miner as senior programmer.