nosql | NoSQL embedded database for small node.js projects | SQL Database library

I am planning to use Oracle NoSQL Cloud Service on OCI using the OCI Python SDK. I did some tests using the API calls and I would like to do the same query but using the Python SDK.

How can I use prepared statement instead of regular statement (see below) and what values I need to set

I have the following error when trying to do a query using the API calls

My express app tries to record the login time of the user using Mongoose's findOneAndUpdate.

Iam using nosql in totajs4 . Document structure in nosql database

{directoryName:{fileName:{"created": timestamp,"modified":timestamp,"deleted":timestamp}}} unable to update this structure.

I am using Oracle NoSQL Cloud Service on OCI and I want to write a program using the Oracle NoSQL Database Python SDK.

I did a test using the OCI SDK, I am using instance-principal IAM vs creating config files with tenancy/user ocid and API private keys on the nodes which invoke the noSQL api calls

Is it possible to do a connection using instance-principal instead of creating config files with tenancy/user ocid and API private keys with the Oracle NoSQL Database Python SDK.

I read the examples provided in the documentation https://github.com/oracle/nosql-python-sdk but I cannot find information about instance-principal support

I'm creating my first ever project with Firebase, and I come to the point when I need some statistics based on user input. I know Firebase (or NoSQL databases in general) are not ideal for statistics but they work for me in any other cases so I would like to give it a try.

What I have:

I work on the application where people can invite a friend to work for their company, so I have a collection of "referrals" where ID of each referral is basically UserID of a user to who the referral belongs, and then there is a subcollection with name "items" where data are stored.

How my data looks like: Each item have these data:

• applicant
• appliedDate
• position(part of position is positionId & department on which this position is coming from)
• status

What I wanted is to let user to make statistics based on:

• date range
• status
• department

What I was thinking about:

It's probably not the best idea to let firebase iterate over all referrals once users make requests as it may get really expensive on firebase. What I was thinking of is using cloudfunctions to calculate statistics always when something change e.g. when a new applicant applies I will increase the counter by one and the same for a counter to a specific department. However I feel like this make work for total numbers or for predefined queries e.g. "LAST MONTH" but once I will not know what dates user will select it start to get tricky.

Any idea how can I design something like this? Thanks a lot!

I want to do a query in nosql database using the BETWEEN operation ? I want to do something like this:

I always use SQL or NoSQL databases in my project and at my job, but now I am asked to use an object-oriented DB. I don't even know for what reason I should do that. Despite this fact, I google for OODBMS in python and can't see any easy way to use this approach. Now I think, that django ORM (and flask sql alchemy) are the simplest way to construct databases.

So, I have two questions:

1. What are the main benefits of using OODBMS instead of, e.x., Django ORM?

2. Is there a simple way to use OODBMS in flask and django?

Im a student just starting out on NoSQL and its just not clicking with me. im a little confused on a few points. Any help would be greatly appreciated 1.Can documents belong to multiple collections?

2.Have I the correct syntax here for creating the Collection? The pic is the collection er and a is just a snippet of the full er.