I have deployed the Neo4j server on the AWS EC2 Ubuntu server instance. I have a certain amount of data on the AWS RDS Postgresql database which I would like to replicate on the graph DB used by the Neo4j application. My question is "Is there any way that U can replicate the data from my AWS Postgresql database onto my graph database?". Any help would be appreciated on this topic.
Check out Neo4j-ETL tool, it helps you to map your data-model from PostgreSQL DB to neo4j
https://neo4j.com/developer/neo4j-etl/
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I have my Old postgres database which is not a cloud based. And I want to migrate the data from the old database to new database which is in aws.
So can this be done via dblink or what is the other best practises to do this.
You can migrate DBs to AWS via AWS Database Migration Service. It's fully managed tool to help you move your data from on premises to AWS. You can read more about it here: https://aws.amazon.com/dms/?nc=sn&loc=1.
I set up a regular Postgres DB in AWS using the Amazon Relational Database Service (RDS). I would like to ingest this data using data wrangler for inspection and further processing.
Is this possible? I only see S3, Athena, Redshift and SnowFlake as the data ingestion options. Does this mean I must move the data from Postgresql to one of these 4 options before I can use Data Wrangler?
If it's not possible through data wrangler, can I connect to my Postgres through a Jupyter notebook, using a connection string or some kind of option like this? I'm looking to use the data for the SageMaker Feature Store.
Using Amazon RDS with DataWrangler is not possible (yet).
That said, you can connect to Postgres in Jupyter using Python and then use the Feature Store API to ingest data and use it for subsequent tasks.
Source: AWS employee
I have this mongoDB (a SaSS in IBM Cloud) and on this cloud i also have an instance of another noSQL DB, cloudant db.
We were able to connect the cloudant DB on Power BI using only an URL such as "https://8869f932-05f0-4f48-b697-XXXXXXXXXXXX-bluemix.cloudantnosqldb.appdomain.cloud/<DATABASE_NAME>/_design/<DESIGN_DOC_NAME>/_view/<VIEW_NAME>" and "WEB" connection option on PowerBI.
My question is, and i didn't find any info or documentation related to this matter: on MongoDB, there is a way to achieve this kind of connection, using only a uri to a specific view rather than the ODBC connection?
If not, is there any other alternative to connect with this resource on IBM instead of ODBC?
Install mongosqld from : https://docs.mongodb.com/bi-connector/current/installation/
Run mongosqld
Now you can connect to the mongodb instance with read access using mysql/mariadb client or drivers.
NOTE: As mentioned this only has read access, so you can execute all the select queries.
I don't think so if PowerBI doesn't support it already. The MongoDB BI Connector isn't installed in IBM Cloud Databases for MongoDB.
I want to understand AWS Relational Database Service (RDS) and discover benefits from using it.
Why RDS is better than manually installed PostgreSQL database in EC2 instance?
Is it possible to connent existing database in EC2 instance with Amazon RDS?
How it really works?
How I should automation RDS?
When I want create new database in existing EC2 instance I can use Ansible in simply way. How I should connect my application with database which uses RDS ?
Thanks in advance!
I want to understand AWS Relational Database Service (RDS) and discover benefits from using it.
As already commented, read the docs and whitepapers.
Why RDS is better than manually installed PostgreSQL database in EC2 instance?
you can be sure it is well setup, you will get point in time recovery, backups and high availability. As well you can set it up yourself, however using RDS you have it all already configured.
Ifs it possible to connent existing database in EC2 instance with Amazon RDS? How it really works?
you don't have access to any underlying configuration, so nope, you cannot really connect ec2 database w/ rds (e. g. wal for wal streaming).
you still can use database migration tools to migrate all databases and updates to or from rds
How I should automation RDS? When I want create new database in existing EC2 instance I can use Ansible in simply way.
you can use a cloudformation template or cli commands
How I should connect my application with database which uses RDS ?
when you create a rds instance, you will define an admin user and receive a connection url
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_VPC.Scenarios.html#USER_VPC.Scenario1
can I migrate from AWS RDS to standalone Postgres instance using AWS DMS?
I RTFM, but It does not state anywhere clearly If I can or not. In theory migration should be the same - create supporting scheme in RDS and move on. But have anyone done it?
Well, from AWS DMS manual:
AWS Database Migration Service (AWS DMS) can migrate your data to and from most widely used commercial and open-source databases such as Oracle, PostgreSQL, Microsoft SQL Server, Amazon Redshift, Amazon Aurora, MariaDB, and MySQL. The service supports homogeneous migrations such as Oracle to Oracle, and also heterogeneous migrations between different database platforms, such as Oracle to MySQL or MySQL to Amazon Aurora. The source or target database must be on an AWS service.
In your case the source is on an AWS service, and if by "standalone" you mean a PostgreSQL instance on EC2 machine, then your target is as well. So, based on that, then answer should be "yes".
Yes, that is possible. We have moved data from RDS Postgres to Postgres Installed on EC2 Instance using DMS and works great so far. Make sure to create endpoints for the source/target and create a replication instance and you are good to go