InterSystems IRIS TSQL Code 8124 Multiple columns are specified in an agg

In this post, you’ll learn about the SQL error code 8124 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform

Error Code :

8124

Reason for the Error code 8124 in InterSystems IRIS DBMS

Multiple columns are specified in an aggregated expression containing an outer reference. If an expression being aggregated contains an outer reference, then that outer reference must be the only column referenced in the expression.

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