InterSystems IRIS TSQL Code 15091 You must specify a length with this phys

In this post, you’ll learn about the SQL error code 15091 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform

Error Code :

15091

Reason for the Error code 15091 in InterSystems IRIS DBMS

You must specify a length with this physical data type.