Query parameter is used to take the data of the criteria, format
WIN: Exp Test / test query = 'where name =' 'test' 'Tables = Tab1 file = Tabl1.dmp log = Tab1L
UNIX: Exp Test / test query = / "where name = / 'test /' /" TABLES = Tab1 file = tabl1.dmp log = tabl1
But it also has limitations:
Query can't be multiple table associations, such as this format
Exp Test / Test Query = 'WHERE Name =' 'Test' 'and Tab1.id = Tab2.id' Tables = (Tab1, Tab2) File = Tabl1.dmp Log = Tab1L
However, Query can be used to constrain the data export of multiple tables, provided that these tables have the same field, and these fields are used as the export condition:
Exp Test / test query = 'where name =' 'test' 'Tables = (tab1, tab2) file = Tabl1.dmp log = Tab1L