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Blog
Upsert patching in RavenDB

Upsert patching in RavenDB

November 7, 2019

Trevor asked a really interesting question in the mailing list. Assume that we have the following model: And what we want to do is to be able to add a note to a book. The API looks like so: public void SubmitNote(string isbn, string note); The requirements are simple: There is one book per ISBN Notes on the book shouldn’t be duplicated The…

Blog
Using RavenDB in PHP

Using RavenDB in PHP

November 6, 2019

After build an R client for RavenDB, I decided to see what it would take to build a basic RavenDB client for PHP in the same manner. It turned out to be fairly simple, and you can find the relevant code here. Here are some basic CRUD operations: As you can see, the API is quite straightforward to use. It isn’t the full blown API that we usually…

Podcasts
RavenDB vs MongoDB: Performance, Cost, and Complexity

RavenDB vs MongoDB: Performance, Cost, and Complexity

November 5, 2019

We get this question every day: How does RavenDB compare to MongoDB? Everybody wants to know how our database stacks up against MongoDB in specific areas. We took the top areas of concern people have for their application and explain what we offer that other databases don’t. RavenDB is a document database built for fast performance, minimal […]

Blog
The futility of using RavenDB as an in memory database

The futility of using RavenDB as an in memory database

November 5, 2019

I was reminded recently that the RavenDB documentation aren’t putting enough emphasis on the fact that RavenDB can run as an in memory database.  In fact, topologies that other databases seem to think are fancy are trivial in RavenDB. You can run your cluster in a mixed mode, with a couple of nodes that are persistent and write to disk, but having…

Blog
Accessing RavenDB data from R

Accessing RavenDB data from R

November 4, 2019

R is a popular environment for working with data, mostly for statistical analysis and exploration. It is widely used by data scientists, statistician and people who get a pile of data and need to figure out how to get something out of it. RavenDB stores data and it can be nice to go through it using R. And now you can quite easily, as you can see…

Articles
A Cloud DBaaS that Predicts And Cuts Costs

A Cloud DBaaS that Predicts And Cuts Costs

November 4, 2019

The primary goal in using any DBaaS or SaaS tool is to cut costs. The challenge is to anticipate your next database cloud bill. RavenDB Cloud helps you accomplish both. According to Gartner, the average project saves 16% by migrating to the cloud. The primary reason projects migrate is to lower their costs by meeting or exceeding this…

nosql-database
Blog
Soliciting feedback: RavenDB time series queries

Soliciting feedback: RavenDB time series queries

November 1, 2019

RavenDB 5.0 will come out with support for time series. I talked about this briefly in the past, and now we are the point where we are almost ready for the feature to stand on its own. Before we get to that point, I have a few questions before the design is set. Here is what a typical query is going to look like: We intend to make the queries as…

Blog
Voron’s Roaring Set: Part I

Voron’s Roaring Set: Part I

October 29, 2019

Following my posts about search, I wanted to narrow my focus a bit and look into the details of implementing a persistent data structure inside Voron. Voron is RavenDB’s storage engine and forms the lowest layers of RavenDB. It is responsible for speed, safety, transactions and much more. It is also a very low level piece of code, which has a lot…

Articles
Transforming Data Modeling Standards

Transforming Data Modeling Standards

October 29, 2019

Trapped in the 60s: How our View on Data is Holding us Back Woodstock was the marquis event of the 1960s, just like SQL was its marquis technology. They tried to revive the magic for Woodstock 50 in 2019 but the event was cancelled before they were able to sell a single ticket. There are simply some things you just gotta let go. If we…

nosql-database