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TeradataTeradata is a relational database management system created by NCR Corporation. It is a massively parallel processing system running a shared nothing architecture. The main point with the Teradata DBMS is that it is linearly and predictably scalable in all dimensions of a database system workload (data volume, breadth, number of users, complexity of queries), which is why it is used a lot in very large scale data warehousing applications. Teradata runs its own operating system, NCR UNIX SVR4 MP-RAS, a variant of System V UNIX from AT&T and on Microsoft Windows 2000 servers. Teradata DBMS often stand by themselves and are used through ODBC by applications typically running on a different operating system such as Microsoft Windows or other flavors of UNIX. The first and foremost customer of this DBMS is Wal-Mart, who run their central inventory and other financial systems on Teradata. Other Teradata customers include companies like Dell, Continental, National Australia Bank and Fedex. The main competitors are other high-end vendors such as DB2 from IBM, Oracle, and Netezza. External links
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