Making A Graph Db Ep4
by Cristi Constantin - 17 May 2017
In my previous article about my Graph Database, I found a list of free & open-source libraries for Elixir, Python and Node, and I had a homework: to find 3 a minimum of use-cases that I want to resolve with my Graph Database.
I thought about this a lot.
First use-case:
- add all the countries and their neighbors from Mledoze/Countries, the geo coordinates, all the capitals, all the currencies and the most important cities
- that’s a small graph, probably around 1k-2k nodes and edges, but is useful, because I want to see how I would replace a classic document-based DB with a graph
- be able to query by continent, by country, by capital, by currency
- find top 3 largest and smallest countries
- find top 3 countries with the most neighbors
- what are the top 3 most popular currencies (by country)
- stupid thinks like: what are the cities with the same name, from different countries
- are there any countries with the same capital? - sanity check
- what are the countries that span on more continents? - don’t even know if I have this data
Second use-case:
- add all my favorite movies
- that’s also a small graph, around 1k-2k nodes and edges, but is useful because the relations are many-to-many
- what period of time is the most dense with favorite movies
- what are my favorite actors
- what are my favorite genres
Third use-case:
- add the top 100 most popular Node.js libraries, with their dependencies
- I have no idea how large this graph is, but it’s definitely something pretty large and dense; if not I could add the top 1000, or top 5000
- find top 3 libraries with most and least dependencies
- find top 3 libraries with most and least versions
Forth use-case:
Other notable use-cases:
- lenght converters (eg: meter to km, meter to foot, meter to mile, etc.)
- weight, temperature, time converters as graphs
With that in mind, I can start studying the popular graph libraries that I found. This might take a lot of time…
Hope to see you again!
This blog is open source. You can check the history of this post.
If you have any thoughts, suggestions, criticism, or whatever, please drop me a line in the comments section.
If I have some audience, I’ll be sharing details and I’ll write more often, obviously.
Tags:
software
programming
graph
db