Tag: aggregation

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How can I trim a string prefix in MongoDB Aggregation? #Studio3T_AMA

Trimming a prefix rom a string during aggregation should be simple, but there’s no out of the box operator to do it. In this AMA, we show you how.

Posted on: 03/08/2022 (last updated: 27/08/2024) • Dj Walker-Morgan 3 minutes

Fixing MongoDB $lookup aggregation

“Why can’t I match anything when I use $lookup?” is a regular question we get to hear. Almost as much as “Why does everything match when I use $lookup?”. Both scenarios are down to innate MongoDB behavior – and once we show you how you’ll never experience these MongoDB $lookup aggregation issues again. Let’s see […]

Posted on: 25/05/2022 • Dj Walker-Morgan 3 minutes
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What is $setWindowFields and why is it so neat?

What is $setWindowFields? Well, $setWindowFields is a new Aggregation stage in MongoDB 5.0. In the most recent release of Studio 3T (2022.2), we added support for it in the Aggregation Editor. Why is it so neat? What it does is completely change what you can do with aggregations, literally opening a window on your documents […]

Posted on: 16/03/2022 • Dj Walker-Morgan 4 minutes
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I don’t get unwind in aggregation – why do I need it?

What does it mean to unwind in MongoDB Aggregation? And what’s that got to do with arrays? Find out in the latest Ask Manatees Anything #Studio3T_AMA

Posted on: 01/12/2021 • Dj Walker-Morgan 3 minutes
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Where’s my full Studio 3T Aggregation Explanation? #Studio3T_AMA

Is your Studio 3T not showing explain statistics for aggregations? Find out why aggregations are different in Ask Manatees Anything #Studio3T_AMA

Posted on: 02/09/2021 (last updated: 22/02/2022) • Dj Walker-Morgan 2 minutes
3T - MongoDB Tools

Doing Multiple MongoDB Exports At Once With Studio 3T #Studio3T_AMA

Q: Now my boss wants three different spreadsheets generated at the same time? Can I do this without creating a tangle of scheduling? A: Yes you can. In the previous Ask Manatees Anything, we showed you how to turn an export into a scheduled Task. What we didn’t mention was that Tasks are actually containers […]

Posted on: 04/08/2021 (last updated: 21/04/2022) • Dj Walker-Morgan 5 minutes
Part of the Studio 3T team at MongoDB Europe 2018

MongoDB Europe 2018: An Aggregation

Studio 3T went to London as sponsors of MongoDB Europe 2018, the biggest MongoDB event on this side of the Atlantic. Here’s a recap.

Posted on: 15/11/2018 (last updated: 02/07/2021) • Kathryn Vargas 4 minutes