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Blog
RavenDB Meetup : Building a grown up database

RavenDB Meetup : Building a grown up database

September 18, 2020

I’m going to be talking to SWENUG next week about RavenDB and how it affects the design and architecture of your systems. Feel free to join us live on Sep 22, 5 PM…

Blog
RavenDB in Action Workshop in NDC Conference

RavenDB in Action Workshop in NDC Conference

September 17, 2020

On October 26, I’ll be giving a two days workshop on RavenDB 5.0 as part of the NDC Conference. In the workshop, I’m going to talk about using RavenDB from scratch. We are going to explore how to utilize RavenDB, modeling and design decisions and how to use RavenDB’s features for your best advantage. Topics includes distribution and data…

Blog
Analyzing Chicago’s Taxis data with RavenDB

Analyzing Chicago’s Taxis data with RavenDB

September 14, 2020

Chicago publishes its taxi’s trips in an easy to consume format, so I decided to see what kind of information I can dig out of the data using RavenDB. Here is what the data looks like: There are actually a lot more fields in the data, but I wanted to generate a more focused dataset to show off certain features. For that reason, I’m going to…

Blog
Understanding query processing and wildcards in RavenDB

Understanding query processing and wildcards in RavenDB

September 4, 2020

I recently got an interesting question about how RavenDB is processing certain types of queries. The customer in question had a document with a custom analyzer and couldn’t figure out why certain queries didn’t work. For the purpose of the discussion, let’s consider the following analyzer: In other words, when using this analyzer, we’ll have the…

Blog
RavenDB now supports running on ARM64 machines

RavenDB now supports running on ARM64 machines

September 3, 2020

We recently added support for RavenDB on Linux ARM 64. You can get the new build here: The nice thing about ARM64 is that when you run on AWS, you can use A1 instances that cost 48% less. Oh, and what about the performance? This is RavenDB running on a1.large instance (2 cores, 4 GB RAM) with a standard gb2 hard disk with 100…

Use Cases
A Database for Startups Helps Revolutionize Date Night

A Database for Startups Helps Revolutionize Date Night

September 3, 2020

How Tended App startup used the RavenDB database to develop the Tended App application. RavenDB lets me get to the business of writing code, and not mess with schema, migrations, and all the misery that comes with a relational database. …

authenticationstartupclouddistributed database
Blog
Webinar Recording: The App that Guarantees You’re Going Out This Saturday Night

Webinar Recording: The App that Guarantees You’re Going Out This Saturday Night

August 27, 2020

The recording of yesterday’s webinar is out. You can hear how Ryan has built the Tended app using RavenDB, to allow seamless integration of medical data across wide variety of devices, using RavenDB as the backend…

Blog
Creating a leader board with RavenDB

Creating a leader board with RavenDB

August 24, 2020

This question was raised in Twitter, and I thought it was quite interesting. In SQL, you can use the rank() function to generate this value, but if you are working on a large data set and especially if you are sorting, you will probably want to avoid this. Microsoft has a reference architecture for the leader board problem where they recommend…

Blog
The inconsistent index results

The inconsistent index results

August 21, 2020

A user reported an issue with RavenDB. They got unexpected results in their production database, but when they imported the data locally and tested things, everything worked. Here is the simplified version of their index: This is a multi map index that covers multiple collections and aggregate data across them. In this case, the issue was that…