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An open, scalable RDBMS that is portable to more than 80 hardware and operating system platforms, from desktop systems to mainframes and supercomputers. Adaptable multithreaded server architecture delivers scalable performance for large numbers of users on all hardware architectures, including SMPs and loosely coupled multiprocessors. Offers concurrency control with full, unrestricted row-level locking and contention-free queries. It provides a cost-based query optimizer and a resource limiter. Applications can run round-the-clock, because system functions such as backup, recovery, and database administration occur online without interrupting transaction processing. Developers and users can treat a physically distributed database as a single logical database. A single SQL statement can query data from multiple databases and perform complex joins. Provides SQL and procedural data access from almost any source with the SQL*Connect and Open Gateway product families. Runs on all major hardware and operatingsystem platforms, including more than 40 Unix, VMS, MVS, VM, HP MPE/XL, Siemens, ICL, OS/2, Macintosh, and NetWare platforms.ÄàòàÎáúÿâëåíèÿ=1996 ÊÎÌÏÀÍÈÈ