15.00 - System-Defined Unique Secondary Indexes - Teradata Database

Teradata Database SQL Data Definition Language Detailed Topics

Product
Teradata Database
Release Number
15.00
Content Type
Programming Reference
Publication ID
B035-1184-015K
Language
English (United States)

System‑Defined Unique Secondary Indexes

When you define a PRIMARY KEY or UNIQUE constraint, Teradata Database implements that constraint as a unique secondary index.

All system‑defined USIs count against the limit of 32 secondary, hash, and join indexes per user‑defined data base table.