> No idea where you are getting that from, SQL has always been supported My mistake. I did some research and I found [this page](http://www.oehive.org/VersionH

> No idea where you are getting that from, SQL has always been supported My mistake. I did some research and I found [this page](http://www.oehive.org/VersionHistory.html http://www.oehive.org/VersionHistory.html) which says that SQL-89 support was added in 1988, but SQL-92 support wasn't added until 2000. But even so, SQL-89 is very anemic and not very expressive compared to SQL-92 (I'm thinking primarily of the support for different types of JOIN expressions), and the fact it took them 8 years to add SQL-92 support is telling (consider that MS Access 97 supported most of SQL-92). I can't find any information suggesting that Progress/OpenEdge implements later standards like SQL-1999 and SQL-2003 which add features I use on an almost daily-basis (recursive CTEs and window functions respectively). > my point was it was direct and inline access to data Doesn't that place architecture-based restrictions on performance though - how well does concurrency and transactions work in their OLTP model?