List

Tuple

Permeten controlar qui accedeix a quina informació

Tenen poca capacitat d'emmagatzematge

No permeten crear carpetes

Són compatibles amb diferents formats de documents

The $match

stage is used to perform mathematical calculations on the grouped data from the

$group stage.

The $match

stage is used to filter documents before they are passed to the $group stage

for grouping.

The $match

stage is used to sort the documents before they are grouped by the $group

stage.

The $match

stage is used to join multiple collections together before grouping them with

the $group stage.

The $match

stage is used to specify the grouping criteria within the $group stage.