n is either 1 or 0. The default value is 1.
When DropDelete is enabled (n = 1), a DROP TABLE statement deletes the table and the table's data. When this parameter is not enabled, a DROP TABLE statement deletes the table, but does not delete the data.
For further details, refer to the DROP TABLE command.
Changing This Parameter
To set the desired value for DropDelete from the Terminal, use the SetOption(“DDLDropTabDelData”) method of the %SYSTEM.SQL.Util class. See the class reference for details.
You can also change DropDelete with the Config.SQL class (as described in the class reference) or by editing the CPF in a text editor (as described in the Editing the Active CPF section of the “Introduction to the Configuration Parameter File” chapter in this book).