InterSystems IRIS TSQL Code 512 Subquery returned more than 1 value. Thi

In this post, you’ll learn about the SQL error code 512 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform

Error Code :

512

Reason for the Error code 512 in InterSystems IRIS DBMS

Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.

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