InterSystems IRIS TSQL Code 8111 Cannot define PRIMARY KEY constraint on

In this post, you’ll learn about the SQL error code 8111 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform

Error Code :

8111

Reason for the Error code 8111 in InterSystems IRIS DBMS

Cannot define PRIMARY KEY constraint on nullable column in table ‘%.*ls’.

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