Copper Distributed Data Interface. Implementation of FDDI protocols over STP and UTP cabling. CDDI transmits over relatively short distances (about 100 meters), providing data rates of 100 Mbps using a dual-ring architecture to provide redundancy. Based on the ANSI Twisted-Pair Physical Medium Dependent (TPPMD) standard. Compare with FDDI.

International organization jointly founded in 1991 by Cisco Systems, NET/ADAPTIVE, Northern Telecom, and Sprint that develops and promotes standards-based implementation agreements for ATM technology. The ATM Forum expands on official standards developed by ANSI and ITU-T, and develops implementation agreements in advance of official standards.

Transact-SQL is a language containing the commands that are used to administer instances of SQL Server; to create and manage all objects in an instance of SQL Server; and to insert, retrieve, modify, and delete data in SQL Server tables. Transact-SQL is an extension of the language defined in the SQL standards published by the International Organization for Standardization (ISO) and the American National Standards Institute (ANSI). A Transact-SQL statement is a set of code that performs some action on database objects or on data in a database. SQL Server supports three types of Transact-SQL statements: DDL, DCL, and DML. A DDL statement supports the definition or declaration of database objects such as databases, tables, and views. Three DDL commands: create, alter and drop.

connection management. FDDI process that handles the transition of the ring through its various states (off, active, connect, and so on), as defined by the ANSI X3T9.5 specification.

Fiber Distributed Data Interface. LAN standard, defined by ANSI X3T9.5, specifying a 100-Mbps token-passing network using fiber-optic cable, with transmission distances of up to 2 km. FDDI uses a dual-ring architecture to provide redundancy. Compare with CDDI and FDDI II.