15.10 - Example: Attempting to Add a Constraint with a Duplicate Name - Teradata Database

Teradata Database SQL Data Definition Language Syntax and Examples

prodname
Teradata Database
vrm_release
15.10
created_date
December 2015
category
Programming Reference
featnum
B035-1144-151K

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.