Example: Non-Valid WHEN Clause - Analytics Database - Teradata Vantage

SQL Data Definition Language Syntax and Examples

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-10-04
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lifecycle
latest
Product Category
Teradata Vantage™

The following CREATE TRIGGER request fails because the WHEN condition contains an aggregate function, but is not specified in a subquery:

     CREATE TRIGGER trigwhen2
       AFTER INSERT ON t1
       REFERENCING NEW_TABLE AS NewTab
     FOR EACH STATEMENT
       WHEN (10 < MAX(NewTab.a))
     ABORT;

Result:

     *** Failure 5430 The Trigger WHEN clause cannot contain an aggregate or table reference.