I can remove a document or an element by remove, pull, unset.
What are the differences among those three?
Which one is safer way to remove in contemporary commanding issue?
and which one is fastest and efficient way to remove?
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I can remove a document or an element by remove, pull, unset.
What are the differences among those three?
Which one is safer way to remove in contemporary commanding issue?
and which one is fastest and efficient way to remove?
removeremoves a document from the collection. This is like an SQL DELETE.$pulland$unsetare update operations that change part of the document. They are similar to SQL UPDATE.$pullremoves an element from an array.$unsetremoves the whole array (or any other field).Since they do completely different things, that is not a meaningful question.