Ingres began as a research project at the University of California, Berkeley, starting in the early 1970s and ending in 1985. The original code, like that from other projects at Berkeley, was available at minimal cost under a version of the BSD license. Ingres spawned a number of commercial database applications, including Sybase, Microsoft SQL Server, NonStop SQL and a number of others. Postgres (Post Ingres), a project which started in the mid-1980s, later evolved into PostgreSQL. It is ACID compatible and is fully transactional (including all DDL statements) and is part of the Lisog open-source stack initiative.
We support Ingres directly in our products! You don't need separate drivers and can immediately connect to your database.
It's very easy to copy existing database tables into your Ingres database. Just point Full Convert to your source database, select your target and let it copy things over.
Tutorials showing how to copy data from another database into Ingres:
It may make sense to migrate your data away from Ingres. You may want to do it permanently or just need to share your tables with a collague in a different format.
Tutorials showing how to copy data from Ingres to another database: