Add criteria to this query to return only the records

The update() method is applied instantly and returns the number of rows matched by the query (which may not be equal to the number of rows updated if some rows already have the new value). The only restriction on the QuerySet being updated is that it can only access one database table: the model’s main table. For example, I want to create a staff list where one employee only has one row of record. If I add emergency contact field to the report and if an employee has more than one emergency contacts, then the Query will return one employees with multi-rows of record as below.