Answer: MongoDB: update every document on one field

answer re: MongoDB: update every document on one field

Jan 27 '12

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Regardless of the version, for your example, the <update> is:

{  $set: { lastLookedAt: Date.now() / 1000 }  }

However, depending on your version of MongoDB, the query will look different. Regardless of version, the key is that the empty condition {} will match any document. In the Mongo…

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