15.00 - 15.10 - Parallel Database Extensions - Teradata Database

Teradata Database Introduction to Teradata

Teradata Database
Release Number
Content Type
User Guide
Publication ID
English (United States)
Last Update

Parallel Database Extensions (PDE) is a software interface layer that lies between the operating system and Teradata Database. PDE supports the parallelism that gives Teradata Database its speed and linear scalability. PDE provides Teradata Database with the ability to:

  • Run in a parallel environment
  • Execute vprocs
  • Apply a flexible priority scheduler to Teradata Database sessions
  • Consistently manage memory, I/O, and messaging system interfaces across multiple OS platforms
  • PDE provides a series of parallel operating system services, which include:

  • Facilities to manage parallel execution of database operations on multiple nodes.
  • Dynamic distribution of database tasks.
  • Coordination of task execution within and between nodes.
  • PDE enables MPP systems to take advantage of hardware features such as the BYNET and shared disk arrays.