# Jdbc input for oracle blob field error

**URL:** https://discuss.elastic.co/t/jdbc-input-for-oracle-blob-field-error/139861
**Category:** Logstash
**Created:** [July 13, 2018, 2:58am UTC](https://discuss.elastic.co/t/jdbc-input-for-oracle-blob-field-error/139861 "2018-07-13T02:58:38Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![Yosen](https://avatars.discourse-cdn.com/v4/letter/y/41988e/32.png) [@Yosen](https://discuss.elastic.co/u/Yosen)
#### Post date: [July 20, 2018, 2:32am UTC](https://discuss.elastic.co/t/jdbc-input-for-oracle-blob-field-error/139861/5 "2018-07-20T02:32:41Z")

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> [@yaauie](#):
>
> /bin/logstash-plugin update logstash-input-jdbc

Hi, yaauie:

Thank you for your help. I will run the update command and test it again. But I remember it is the latest.  
I don't know ruby language， but from the error message, i find it seems that the jdbc plugin call the "charset.rb" method "convert", maybe this raise the error. That mean is not because of the jdbc plugin, it because of the logstash core code.

Yosen

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