Unlike global attributes, you need to add columns in table in Windchill Database for standard attributes.
You don’t need to execute a query manually in order to add columns; there is a utility to create columns: AddColumns.
Execute the following command on Windchill Shell: AddColumns <Windchill Type> <Primitive Data Types>=<Number of Columns>
Example:
1. AddColumns wt.part.WTPart String=1
2. AddColumns wt.doc.WTDocument Long=3
As you can see the image below, the new column for String is created in wcadmin.WTDocument Table.
