I am new to Helidon SE and would like to know if there is a way to upload files to Oracle DB (Blob/Clob Column) via REST service created using Helidon SE.
How to upload file to Oracle DB as Blob/Clob using Helidon SE REST Services
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File upload/download example available at Helidon repository: https://github.com/oracle/helidon/tree/master/examples/media/multipart
However this example uses disk to store/retrieve the file but you can replace that to JDBC read/insert.
Depending on the LOB size probably it's better to upload/download the file in a reactive way (like the example does above) and read/insert the bits when you have all of them.
(In addition Oracle DB 20c available in preview with JDBC Reactive extension what I haven't checked but most likely with that you can make it fully reactive from end-to-end.)