I am trying to query data between two servers of postgres. One is posgtres RDS of AWS and one is a aurora DB postgres. This posgtres RDS of AWS is a backup of the main aurora DB. I need to copy few rows from this backup to the main aurora Db instance.
i tried using dblink to connect two servers but it is not successful
I tried using dblink and it did not work. My postgres version is latest and above 13.6 and it is aurora serverless V2.
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I'm trying to figure out an efficient way to copy data directly from my AWS RDS Production Postgres Instance to my AWS RDS Development Instance.
Right now I do a pg_dump on my local machine of the production instance. Then do a pg_restore on my local machine to the development RDS instance.
How can I copy the data directly from the Production RDS Postgres Instance to the Development RDS Postgres Instance?
I've migrated a On premise Oracle to Aurora Postgres on AWS RDS. my migration process is described in the below image.
I'm looking for an option to sync data from on prem oracle to aurora postgres (Something like, if one row inserted/updated in particular table, that data should come and update/insert in aurora postgres table).
Is it possible ?
Yes you'll want to use the DMS (Database Migration Service) which can do continuous data replication from source to target DB's
https://aws.amazon.com/dms/
I created an RDS Postgres instance. I'm new to RDS.
db host:
demodb.xxxuxxvxxxxx.us-east-2.rds.amazonaws.com
db identifier:
demodb
Every tutorial says to connect with this URL:
jdbc:postgresql://demodb.xxxuxxvxxxxx.us-east-2.rds.amazonaws.com:5432/demodb
but every time I do I get this error-
FATAl: database "demodb" does not exist.
I am able to connect using this:
jdbc:postgresql://demodb.xxxuxxvxxxxx.us-east-2.rds.amazonaws.com:5432/postgres
Now, while I was excited to connect after I used SQL workbench to create tables and insert data into those tables, a few hours later all my tables and data were deleted/wiped/dropped. Why would this happen? and How can I prevent it from happening in the future?
FATAl: database "demodb" does not exist.
demodb is db instance identifier. It is NOT the name of your database inside of PostgreSQL.
By default RDS PostgreSQL does not create a database for you. It seems to me that you haven't created an actual database when you setup your RDS PostgreSQL.
To create a database at RDS creation there is an option called Initial database name where you should specify the name of the database you want. Otherwise, no database is created, which is a default behavior:
I have a PostgreSQL database . How I can migrate this to Amazon Web Service RDS??
I don't understand how to do it. Is it using Database Migration Service on AWS?
You can use AWS Database Migration Service, but that seems like an overkill if you migrate from PostgreSQL to PostgreSQL. Database Migration Service allows data migration between different RDBMS and even between NoSQL databases and RDBMS.
Just dump your database with pg_dump and restore it to RDS instance with pg_restore.
Setup --
I have a postgresql db running on AWS RDS. We access it from an EC2 instance using pgAdmin 3.
Current Scenario --
AWS takes a daily backup of the entire RDS instance as RDS snapshots which is stored for 15 days.
I take a manual backup of one important schema (all the data in schema included) using pgAdmin and then push this backup file to s3.
Question --
How do I automate this backup of a single schema (including data) in postgresql and store it on S3 (any application or script). Is there a way to automate it in pgadmin just for one schema and not the entire database.
You need to use a command line tool pg_dump:
pg_dump \
--host=myhostname.qwertyuiop.sc-moon-1.rds.amazonaws.com \
--username=myusername --dbname=mydbname \
--format=custom --file=mydbname.pg_dump
It needs to be the same major version as the database.