Re: user defined column functions?
Date: Tue, 11 Mar 2003 19:20:17 +0000
Oracle 9 current supports User-Defined Aggregates (UDAGs in Oracle-speak). See http://hippocrates.tops.gwu.edu/oracle/server.901/a- 88856/c14ordb.htm#437280
Microsoft is planning to implement them (UDAggs in MS-speak) after Yukon and the integration of the .NET CLR with the SQL Server engine. See http://research.microsoft.com/~jamesrh/TalksAndPapers/Berkeley.ppt
IBM has funded research through UCLA on this (UDAs in IBM-speak), although with the backlog of clean-up work needed in DB2 to fully transition from the mainframe legacy, its not clear when this might be implemented. See http://www.cs.ucla.edu/~zaniolo/papers/dbpl99.pdf
-- Posted via http://dbforums.comReceived on Tue Mar 11 2003 - 20:20:17 CET