Restrictions on Redefining Characters - Analytics Database - Teradata Vantage

Teradata Vantageā„¢ - Analytics Database International Character Set Support - 17.20

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-01-27
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Product Category
Teradata Vantage

Site-defined character set restrictions for networked and mainframe clients are described in the following sections.

Network clients use ASCII-compatible character sets and mainframe clients are often EBCDIC-based.

ASCII

Site-defined character sets based on the ASCII character set must preserve the definition of code points 0-127. This means that you may only redefine those characters whose numeric value is 128 or greater.

EBCDIC

When you create a custom character set based on the EBCDIC character set, you must retain a certain subset of the EBCDIC characters. The required characters are identified as shaded code points in the table.

The shaded code points must remain as defined, and the site-defined translation tables must map these code points into the correct internal Vantage representations.