16.20 - Column Constraint Attributes - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-24
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You can specify the following column constraint forms:
  • UNIQUE
  • PRIMARY KEY
  • CHECK (boolean_condition)
  • REFERENCES referenced_table_name
You cannot specify column-level or table-level constraints for UDT columns. You cannot specify the following constraints for UDT, Geospatial, or Period columns:
  • BETWEEN … AND
  • UNIQUE (boolean_condition)
  • PRIMARY KEY
  • CHECK
  • REFERENCES referenced_table_name