Understanding Queries, Snapshots, and Filters
Queries, snapshots, and filters are ways to filter any list, such as the Student List or the Staff List.
Query
A
query
a request to find a group of records that match specific criteria at a particular time is a dynamic filter. Use a query to search for a group of
records one time. If you use the same query criteria again, it might not
produce the same list of records. For example, you can use a query to search
for all ninth-graders who have a GPA grade point average equal
to or higher than 3.0. Because a student's GPA can change with each grade
term, the group of students that the query gathers could be different
each time you use it.
Snapshot
A
snapshot a static picture of a particular group of records that you can file and easily retrieve represents a static filter. Use a snapshot to take a picture of
a group of records you will need to access regularly, or need to save.
For example, assume you want to save the group of students the query above
finds to determine your Quarter 1 Honor Roll. Once you create the snapshot
— think of a picture
taken with a camera — the group of students in the
snapshot never changes.
Therefore, if you create a snapshot of students in your homeroom today, and a new student registers tomorrow, your snapshot does not contain that new student. But you can modify a snapshot manually.
Filters
There are default filters and custom filters. Default filters are available from every list page. You can also create your own filters when you make a snapshot or query. You have the option of saving a snapshot and a query as a filter so you can use it again. You will be able to easily access the filter by clicking 
and selecting the filter you created to view the list of records.
