In this post, you’ll learn about the SQL error code 8121 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform
Error Code :
8121
Reason for the Error code 8121 in InterSystems IRIS DBMS
Column ‘%.*ls.%.*ls’ is invalid in the HAVING clause because it is not contained in either an aggregate function or the GROUP BY clause.