ALTER CONSTRAINT Examples | Teradata Vantage - ALTER CONSTRAINT Examples - Teradata Vantage - Analytics Database

SQL Data Definition Language Syntax and Examples

Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2025-11-06
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jco1628111346878.ditamap
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qkf1628213546010.ditaval
dita:id
mdr1472255012272
lifecycle
latest
Product Category
Teradata Vantage™

Example: Adding a DELETE Security Policy to a Constraint Object

This ALTER CONSTRAINT example adds a DELETE security policy UDF to the classification_level constraint object.

     ALTER CONSTRAINT classification_level
     AS FUNCTION ADD DELETE SYSLIB.deletelevel;

Example: Adding a New Set of Name:Value Pairs to a Constraint Object

This ALTER CONSTRAINT example adds the specified set of name:value pairs to the classification_level constraint object and deletes all of the old name:value pairs.

     ALTER CONSTRAINT classification_level
     AS VALUES (topsecret:4, secret:3, confidential:2, unclassified:1);