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16 lines
600 B
Markdown
16 lines
600 B
Markdown
---
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title: What if I have a problem with encodings when using Oracle via ODBC?
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toc_hidden: true
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sidebar_position: 20
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---
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# What If I Have a Problem with Encodings When Using Oracle Via ODBC? {#oracle-odbc-encodings}
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If you use Oracle as a source of ClickHouse external dictionaries via Oracle ODBC driver, you need to set the correct value for the `NLS_LANG` environment variable in `/etc/default/clickhouse`. For more information, see the [Oracle NLS_LANG FAQ](https://www.oracle.com/technetwork/products/globalization/nls-lang-099431.html).
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**Example**
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``` sql
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NLS_LANG=RUSSIAN_RUSSIA.UTF8
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```
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