SharePoint external list with SQL server trigger

Does external SharePoint support the SQL activation function? After adding the update activation feature, my existing external list received this error:

Failed to update an item in the list for this external list based on the Entity (External Content Type) & # 39; Myexternal content type & # 39; in EntityNamespace & # 39; http: // xxxxx / sites / xxx & # 39 ;. Details: the query in the database caused an error.

The activation function of my update is about to concatenate column A and the value from column B to column C.

Thank you!