HELP CONSTRAINT and Row-Level Security Constraints
The HELP CONSTRAINT statement is unrelated to the row-level security constraints that Teradata Row-Level Security uses. The statement does not report information for those constraints. For that information, use HELP SESSION and read the reports for the Constraint attribute.
HELP CONSTRAINT and Non-Updatable Views
You cannot run a HELP CONSTRAINT request against a non-updatable view.
Supported Named Constraint Types
There are three main types of named constraints:
- CHECK
- Referential
- PRIMARY KEY
- FOREIGN KEY
- REFERENCES
- UNIQUE