Introduction to Teradata

What is Teradata?

Teradata is a RDBMS (relational database management system) which includes below features:

It’s built on completely parallel architecture which means single task will be divided into smaller chunks and compute simultaneously hence faster execution.
Teradata system is a shared-nothing architecture in which each node is independent and self-sufficient. Also each logical processor (AMP) is responsible only for their own portion of database.
Supporting industry standard ANSI SQL to communicate with Teradata.
Teradata database can be accessed by multiple concurrent users from different client applications via popular TCP/IP connection or IBM mainframe channel connection.

There are numerous reasons why clients choose Teradata over other databases.

Linear scalability helps to support more users/data/queries/query complexity without losing performance. When system configuration grows performance increases linearly.
System is built on open architecture, so whenever any faster chip and device are made available it can be incorporated into the already build architecture.
Automatic distribution of data across multiple processors (AMP) evenly. Components divide task into approximately equal pieces so all parts of the system are kept busy to accomplish the task faster.
Supports 50+ petabytes of data.
Provides a parallel-aware Optimizer that makes query tuning unnecessary and get it run efficiently.
Single operation view for a large Teradata multi-node system via SWS (Service Workstation). This is mainly managed by Teradata GSC.
Single point of control for the DBA to manage the database using Teradata viewpoint.
Compatible with large numbers of BI tool to fetch data.

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