A mobile business object operation can be implemented using a SQL statement or a remote operation. If the connection operation is selected in the Mapping page, operations and parameters are automatically mapped.
To support attribute and parameter nullability, in addition to supporting literal default values, a default value of null and of no default value is supported. Select the default value on the Parameters page to open the Default Value Editor where you can select the type and value of the default value. The choices are None, Null, and Single Literal, where you must then also enter the literal value.