Customizing the metamodel > Keywords for USRPROPS > BY
  
BY
The BY keyword is often used, as shown in the following expressions:
DEFINED (BY)
RELATE (BY), RELATED (BY)
KEYED (BY)
For more information, refer to the specific keyword combination.
Example
DEFINITION "Column"{
PROPERTY "Database Name"
{ KEY EDIT OneOf "Database" RELATE BY "nothing" }
}
See also
Keywords for USRPROPS