0 - 2 of 2 tags for heartbeat

Per this article:
http://developer.teradata.com/blog/stever/2011/08/understanding-the-system-health-equation
"A Teradata Database system is considered DOWN in the health equation if any of the following conditions occurs:

We have set the following as the canary query in the Viewpoint server:

 

Select * from DBC.dbcinfo;

 

What are the other canary queries available? Is it ok to set the following as canary queries:

 

1)SELECT 1;

 

2)SELECT CURRENT_DATE;

 

Kindly let me know.