InterSystems IRIS TSQL Code 4901 ALTER TABLE only allows columns to be ad

In this post, you’ll learn about the SQL error code 4901 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform

Error Code :

4901

Reason for the Error code 4901 in InterSystems IRIS DBMS

ALTER TABLE only allows columns to be added that can contain nulls or have a DEFAULT definition specified. Column ‘%.*ls’ cannot be added to table ‘%.*ls’ because it does not allow nulls and does not specify a DEFAULT definition.

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