INTRODUCTION TO TERADATA

What is the Teradata Database?Teradata is a relational database management system (RDBMS) that is:

• Teradata is an open system, running on a UNIX MP-RAS or Windows server platform.

• Teradata is capable of supporting many concurrent users from various client platforms.

• Teradata is compatible with industry standards (ANSI compliant).

• Teradata is completely built on a parallel architecture.

Why Teradata?

There have plenty of reasons why customers like to choose Teradata.

Teradata supports more larger warehouse data than all competitors combined.

Teradata Database can scale from 100 gigabytes to over 100+ petabytes of data on a single system without losing

any performance .This is called Scalability.

Provides a parallel-aware Optimizer that makes query tuning unnecessary to get a query to run.

Automatic and even data distribution eliminates complex indexing schemes or time-consuming reorganizations .

Teradata Database can handle the most concurrent users, who are often running multiple, complex queries.

Designed and built with parallelism.

Supports ad-hoc queries using SQL

Single point of control for the DBA (Teradata Manager).

Unconditional parallelism (parallel architecture)

Teradata provides the lowest total cost (TCO) of ownership

High availability of data because there is no single point of failure – fault tolerance is built-in to the system.

Teradata Database can be used as  Enterprise data warehousing

Active data warehousing

Customer relationship management

Internet and E-Business

Data marts

Architecture of Teradata 

Teradata relies on three architectural components.

Parsing Engine(PE) or Optimizer

Access Module Processors(AMPs)

BYNETs

Disks

Parsing Engine (PE)

The Parsing Engine (PE) is a component that interprets SQL requests, receives input records, and passes data. It

sends the messages through the BYNET to the AMPs.

BYNETs

The BYNET act as message-passing layer. It decides which AMP should receive a message.