Example: Attempting to Add a Constraint with a Duplicate Name - Advanced SQL Engine - Teradata Database

SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
Published
September 2020
Language
English (United States)
Last Update
2021-01-23
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dita:id
B035-1144
lifecycle
previous
Product Category
Teradata Vantage™

The following request is not valid because the constraint named dup_constr_name already exists in table_1. You cannot add it to the table.

    ALTER TABLE table_1
      ADD CONSTRAINT dup_constr_name
      FOREIGN KEY (column_3) REFERENCES table_2;

The system returns the following message:

Constraint with the same name 'dup_constr_name' already exists in table.