Date: 15 Jun 93 14:55:48 GMT Hi there, since I've never seen 'Symbolics' or 'Statice' in comp.database.object, this might be interesting: A few days ago, Symbolics announced the availability of a beta- release of their ODBMS 'Statice' on Unix platforms. It is quite powerful and tightly integrated within Common Lisp. Currently, Symbolics and LUCID are supported. People (like me) used to Symbolics' Genera development environment can continue to use Statice there (where it has been already successfully employed in 'real world' applications) and now also use it on Unix Workstations. (Those are the cheaper boxes, I guess). Both kinds of platforms can be freely intermixed in a network. Statice is based on standards of Lisp: CLOS and CLIM (Common Lisp Object System, resp. Common Lisp Interface Manager) Here's the address of Symbolics in Germany; they're mostly responsible for Statice on Unix: Symbolics Systemhaus GmbH Mergenthalerallee 77 6236 Eschborn (til June 31) 65760 Eschborn (from July 1) Tel. (49) 6196-47220, Fax (49) 6196-481116 Contact person is Dr. Thomas Neumann (TN@symbolics.de). Also: "Update Database Schema" brings an existing database into conformance with a modified schema. Changes are classified as either compatible (lossless, i.e., completely information-preserving) or incompatible (i.e., potentially information-losing in the current implementation). Basically, any change is compatible except for the following: -- If an attribute's type changes, all such attributes extant are re-initialized (nulled out). Note that Statice permits an attribute to be of type T, the universal type. Such an attribute can then take on any value without schema modification or information loss. -- If a type's inheritance (list of parents) changes, the type must be deleted and re-created, losing all extant instances of that type. This is Statice's most serious current limitation. The simplest workaround is to employ a database dumper/loader (either the one supplied by Symbolics or a customized one) to save the information elements and then reload them into the modified schema. [Lawrence G Mayka <lgm@IExist.ATT.COM>] > UniSQL UniSQL offers a state-of-the-art suite of integrated object-oriented database systems and application development products which can be used separately or together to support complex development projects which use object-oriented development techniques, integrate sophisticated multimedia data, and require true multidatabase access to relational and object-oriented databases. The UniSQL product suite includes: UniSQL/X Database Management System; UniSQL/M Multidatabase System; and UniSQL/4GE Application Development Environment User interfaces include: C++, C, Object SQL, SmallTalk, and ODBC Database interfaces include: Ingres, Oracle, Sybase, UniSQL/X, and EDA/SQL UniSQL offers: - A wide selection of user interfaces including C++, SmallTalk, C, Microsoft's ODBC, both embedded (static and dynamic) and interactive Object SQL, and UniSQL and 3rd-party development tools. - Mission-critical database features such as a high-level query language (SQL/X), cost-based query optimization, automatic transaction management, automatic concurrency control, dynamic schema evolution, dynamic authorization, physical disk structuring options, and installation tuning parameters. - The UniSQL Multimedia Framework which provides natural and uniform database system support for all types of large unstructured data objects. The Multimedia Framework also provides for seamless integration of multimedia devices such as fax machines, CD jukeboxes, satellite feeds, image compression boards, etc. - The UniSQL/M Multidatabase System enables developers to manage a collection of multi-vendor databases -- Ingres, Oracle, Sybase, DB2, UniSQL/X, and others -- as a single federated database system with full object-oriented capabilities. UniSQL has well over 150 customers around the world, the majority of which are using UniSQL database products for mission-critical applications which require object-oriented, multimedia, post-relational, and heterogeneous database capabilities. A typical UniSQL customer is a Fortune 500 company, a commercial software developer, or government organization that is using UniSQL database products to: - support mission-critical application development projects which are being developed using object-oriented programming languages and development techniques, - support applications which must integrate many different types of corporate data -- text and documents, tabular data, images and audio, engineering drawings, GIS data, procedural data (programs), etc. -- into a single application context. - support the full object-oriented development paradigm using existing relational database systems such as Ingres, Oracle, Sybase, and DB2. - logically integrate one or more relational and object-oriented databases to form a single, homogenized database server which supports both relational and object-oriented facilities. In September 1992, UniSQL was selected by the Petrotechnical Open Software Corporation (POSC) -- over more than 25 other industry vendors -- to provide database technology which is being used by POSC in their development of a new data management specification for the oil & gas industry. Also during 1992, because of its powerful multimedia capabilities, UniSQL was selected by the MIT AthenaMuse Consortium on multimedia as the consortium's multimedia database system. During the DB/EXPO '93 Conference and Exhibition, UniSQL was chosen in competition with major industry database vendors as a finalist in the ``RealWare Awards''. The ``RealWare Awards'' honor companies that have had a major impact in the user community. UniSQL was founded in May 1990 by Dr. Won Kim, President and CEO, delivering the UniSQL/X DBMS in March of 1992. With its world-class database research and architectural team, UniSQL has perfected what the database industry has sought since the mid-1980s: a fully object-oriented data model that is a natural conceptual outgrowth of the popular relational model. Both the UniSQL/X DBMS and the UniSQL/M Multidatabase System represent the first of a powerful new generation of client-server database systems that support the full object-oriented paradigm yet retain all of the strengths and capabilities of relational database systems including support for ANSI-standard SQL. UniSQL currently has 45 employees and is privately owned and managed by Dr. Kim. The company has secured long-term funding from NTT Data Communications Systems Corp. (NTT Data), a $2 billion company, which is Japan's foremost systems integrator and UniSQL's exclusive distributor in Japan. For more information, contact: UniSQL, Inc. 9390 Research Blvd., II-200 Austin, Texas 78759-6544 Tel.: 512/343-7297 Tollfree: 800/451-DBMS Fax.: 512/343-7383 And: From: jonh@unisql.UUCP (Jon Higby) Newsgroups: comp.databases,comp.databases.theory,comp.databases.object,comp.objectGo Back Up