1.CDO>  SHOW WHAT_IF EMPLOYEE_DB

      In this example, because no qualifier is specified, the SHOW
      WHAT_IF command displays the default information (/BRIEF). This
      information includes the names of immediate owners that receive
      a possibly invalid notice if you issue the CHANGE command for
      EMPLOYEE_DB.

    2.CDO>  SHOW WHAT_IF /FULL FIELD_A(2)

      In this example, the SHOW WHAT_IF command with the /FULL
      qualifier displays all owners that receive a possibly invalid
      notice if you issue the CHANGE command for FIELD_A(2).

    3.CDO>  SHOW WHAT_IF /FULL /TYPE=(CDD$DATABASE) EMPLOYEE_REC

      In this example, the SHOW WHAT_IF command with the /FULL and
      /TYPE qualifiers displays all owners of the CDD$DATABASE type
      that receive a possibly invalid notice if you issue the CHANGE
      command for EMPLOYEE_REC.