Sources

A dataview "source" is something that identifies a set of files, tasks, or other data object. Sources are indexed internally by Dataview, so they are fast to query. Dataview currently supports three source types:

1. Tags: Sources of the form #tag.
2. Folders: Sources of the form "folder".
3. Specific Files: You can select from a specific file by specifying it's full path: "folder/File".
   • If you have both a file and a folder with the exact same path, Dataview will prefer the folder. You can force it to read from the file by specifying markdown: folder/File.md.
4. Links: You can either select links TO a file, or all links FROM a file.
   • To obtain all pages which link TO [[note]], use [[note]].
   • To obtain all pages which link FROM [[note]] (i.e., all the links in that file), use outgoing([[note]]).
   • You can implicitly reference the current file via [[#]] or [[]].

You can compose these filters in order to get more advanced sources using and and or.

• For example, #tag and "folder" will return all pages in folder and with #tag.
• Querying from #food and !#fastfood will only return pages that contain #food but does not contain #fastfood.
• [[Food]] or [[Exercise]] will give any pages which link to [[Food]] OR [[Exercise]].

Sources are used in both the FROM query statement, as well as various JavaScript API query calls.