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Teradata Parallel Data Pump

Teradata Parallel Data Pump Reference - Teradata Developer ...

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Glossary<br />

A<br />

abend: Abnormal END of a task. Termination of a task prior to its completion because of an<br />

error condition that cannot be resolved by the recovery facilities that operate during<br />

execution.<br />

abort: In <strong>Teradata</strong> SQL, a statement that stops a transaction in progress and backs out<br />

changes to the database only if the conditional expression associated with the abort statement<br />

is true.<br />

account The distinct account name portion of the system account strings, excluding the<br />

performance group designation. Accounts can be employed wherever a user object can be<br />

specified.<br />

access module: A software component that provides a standard set of I/O functions to<br />

access data on a specific device.<br />

Acquisition Phase: Responsible for populating the primary data subtables of the work<br />

tables. <strong>Data</strong> is received from the host, converted into internal format, and inserted into the<br />

work tables. The work tables are sorted at the end of the acquisition phase and prior to the<br />

application phase.<br />

administrator:<br />

A special user responsible for allocating resources to a community of users.<br />

AMP: Access Module Processor. A vproc that receives steps from a PE and performs<br />

database functions to retrieve or update data. Each AMP is associated with one vdisk, where<br />

the data is stored. An AMP manages only its own vdisk and not the vdisk of any other AMP.<br />

ANSI: American National Standards Institute. ANSI maintains a standard for SQL. For<br />

information about <strong>Teradata</strong> compliance with ANSI SQL, see SQL Fundamentals.<br />

Application Phase: Responsible for turning rows from a work table into updates, deletes,<br />

and inserts and applying them to a single target table.<br />

architecture: A definition and preliminary design which describes the components of a<br />

solution and their interactions. Architecture is the blueprint by which implementers construct<br />

a solution that meets the defined needs.<br />

ASCII: American Standard Code for Information Interchange. Pronounced as-key. A<br />

character set used primarily on personal computers.<br />

B<br />

BTEQ: Basic <strong>Teradata</strong> Query. A utility that allows users on a workstation to access data on<br />

<strong>Teradata</strong> <strong>Data</strong>base, and format reports for both print and screen output. A CLI program used<br />

<strong>Teradata</strong> <strong>Parallel</strong> <strong>Data</strong> <strong>Pump</strong> Reference 261

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