15.00 - 15.10 - Table Constraints - Teradata Database

Teradata Database Introduction to Teradata

Product
Teradata Database
Release Number
15.00
15.10
Content Type
User Guide
Publication ID
B035-1091-151K
Language
English (United States)
Last Update
2018-09-25

You can define conditions that must be met before Teradata Database writes a given value to a column in a table. These conditions are called constraints. Constraints can include value ranges, equality or inequality conditions, and intercolumn dependencies. Teradata Database supports constraints at both the column and table levels.

During table creation and modification, you can specify constraints on single-column values as part of a column definition or on multiple columns using the CREATE and ALTER TABLE statements.