Hello everybody,
I have 2 databases Amazon DynamoDB & PostgreSQL with a million rows, could you pls help me with the best flow to read and extract data without a big delay?
Many thanks in advance
Hello everybody,
I have 2 databases Amazon DynamoDB & PostgreSQL with a million rows, could you pls help me with the best flow to read and extract data without a big delay?
Many thanks in advance
@serefidou welcome to the KNIME forum.
If you want to transfer data from one database to the next this example might help
Hi @mlauber71 nice to e-meet you and many many thanks for the prompt response.
Actually, I want to join the data from the 2 databases and to read the new dataset, but as the 2 databases are huge it is taking a lot of time to run the node … so I am looking for the best solution to get a samle of the joinded dataset
@serefidou you could load a sample with a LIMIT statement and then collect the same data from the other database.
Speed will very much depends on your systems and your network.
You could try and do loops:
Perfect!
Many many thanks for the help
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