Internal Storage Limitations - Advanced SQL Engine - Teradata Database

International Character Set Support

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
July 2021
Language
English (United States)
Last Update
2021-07-28
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B035-1125
lifecycle
previous
Product Category
Teradata Vantageā„¢

Character data entered using extended site-defined client character sets should be stored in columns defined as Unicode. The UNICODE server character set requires two bytes of storage per character so that a CHAR(5) CHARACTER SET UNICODE field occupies 10 bytes of storage.

Given the 64000 byte limit on column size, a column cannot exceed 32000 characters. Furthermore, the combination of character data and other data types cannot exceed the 64000 byte limit on row size.