Query settings
You can use settings to specify conditions for a query. When you execute this query, a dialog box asks you to enter these settings, with a box for each setting defined in the query.
Setting names are preceded by &. The setting name is used as the title for the field you are asked to complete when specifying the setting value.
In the syntax description, “&setting” indicates that you can define a setting.
select Message where type-message = &Type
When the setting is processed, you will be prompted for the value of the "Type" field.
The setting name can contain any character if it is between “ “.
“&Org-Unit Name“