# Deleted .logstash\_jdbc\_last\_run
**URL:** https://discuss.elastic.co/t/deleted-logstash-jdbc-last-run/189563
**Category:** Logstash
**Created:** [July 9, 2019, 1:52pm UTC](https://discuss.elastic.co/t/deleted-logstash-jdbc-last-run/189563 "2019-07-09T13:52:37Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@LouisP](https://discuss.elastic.co/u/LouisP)
#### Post date: [July 9, 2019, 1:52pm UTC](https://discuss.elastic.co/t/deleted-logstash-jdbc-last-run/189563/1 "2019-07-09T13:52:37Z")
I was using the JDBC plugin with the ._logstash\_jdbc\_last\_run_ and _:sql\_last\_value_ to query a database regularly and make sure that I only get new entries. Then I changed the _.conf_ file and I don't need to use _:sql\_last\_value_ anymore but then the JDBC plugin doesn't work anymore. It gives me errors. Then, I removed the _.logstash\_jdbc\_last\_run_ file, but it still not working. What should I do? Thanks
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 6, 2019, 1:52pm UTC](https://discuss.elastic.co/t/deleted-logstash-jdbc-last-run/189563/2 "2019-08-06T13:52:40Z")
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