TheThis followingis Databasea Management'''comparison Systemsof object-relational database management systems''' (DBMSsORDBMSs). have Each system has at least some [[object-relationalfeatures databaseof managementan system|[[object-relational features.database]]; Theythey vary widely in their completeness and the approaches taken.
The following tables compare general and technical information; for a number of [[object-relational database management system]]s. Pleaseplease see the individual products' articles for further information. This article is not all-inclusive ornor necessarily up to date. Unless otherwise specified in footnotes, comparisons are based on the stable versions without any add-ons, extensions or external programs.
