I cannot find this information, and also I cannot find examples on how to use Gremlin.net c# GLV with a remote Cosmos DB graph. Someone knows anything about this? Thanks!
Currently CosmosDB does not support GLV's as they do not yet have Bytecode support. They have told me that they are working on it and expect it to be available soon.
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I am wondering if AWS Neptune and Azure Cosmos DB support adding custom Gremlin DSLs?
Also, do they support inline lambdas?
Thank you.
Custom DSLs are really just wrappers you build around existing Gremlin steps. As such, these are evaluated client side, and therefore should work just fine if you are using Amazon Neptune as your graph database. You can just follow the examples for whichever Gremlin client driver you are using such as these instructions for the Gremlin Java client.
Amazon Neptune does not support in-line code (closures/lambdas). Looking at their documentation I do not believe CosmosDB supports lambdas/closures either.
I need to manage (SELECT, INSERT, UPDATE, etc.) a simple SQLite database through Dart code, but all the SQLite connector libraries I could find are very outdated. I've searched for a solution and haven't seen anything compatible with Dart 2. Can anyone think of an alternative way to do this?
Note: The application and database will eventually be migrated server-side
with Azure.
Note: I am fairly new to working with SQL and RDBMS.
Thanks!
The sqlite package should provide what your need. It is pretty up-to-date including null-safety and recently updated.
I started working with CosmosDb Graph and using the string based version. I tried a random fluent SDK but didn't work very well. Can someone recommend a fluent SDK?
Depending on which language you are using you will need to find the correct Gremlin Language Variant which you can find from the Tinkerpop Reference Documentation here: Tinkerpop Gremlin Language Variants
I am building an ASP.NET application with Neo4j database so I am using Neo4jClient. I want to execute Gremlin queries, but I haven't been able to find good examples of writing Gremlin queries with Neo4jClient and C#. Everything I find are Groovy examples with Gremlin console, so I would appreciate if someone could write an example of a basic query in C#, just so that I can figure out how this works.
Neo4jClient no longer supports gremlin queries, if you try to do anything with the .Gremlin bits you'll see they are all marked as Obsolete and are likely to be removed in the near future.
If you really need to see examples, there are a couple of questions on here which have valid Gremlin queries (for example: neo4j - Issue converting gremlin query to cypher) or you could clone the old bitbucket neo4jclient repo and look through the wiki (Gremlin Wiki History).
Having said that all the examples I see use client.RootNode as the base point - this is meaningless (as far as I know) for a Neo4j 2+ as RootNode doesn't exist - and I have no idea what will happen if you try to use it.
If you can I would look at Cypher it's much much nicer and works brilliantly via the client.
For those that are knowledgeable in this subject (and hopefully faced a similar situation), could you please give your opinion on which provider would be best suited for a ASP.net 2.0 framework application?
The main points I am looking for are:
Performance
Functionality
From what I have gathered online, it seems the Oracle provided Data Providers provide better performance and functionality but you need to install and setup the clients/server software which can be a hassle.
Thanks in advance for your assistance.
You pretty much answered your own question. The Oracle ODP provides more functionality (I am not sure about the performance though) while the Microsoft ODP provides simpler deployment.
I found the ability to do bulk inserts using the odp.net driver really useful. It allows you to pass arrays of parameters to a stored procedure to do a bulk crud operations.
So I guess from a performance and functionality perspective this is worth it.
I'm not sure if the odp.net driver works with Enterprise Library, if you intend on using that also.