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Update jdbc-v2.md
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‎docs/en/integrations/language-clients/java/jdbc-v2.md

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# JDBC Driver
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`clickhouse-jdbc` implements the standard JDBC interface using [client-v2](/docs/en/integrations/language-clients/java/client-v2.md).
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We recommend using [client-v2](/docs/en/integrations/language-clients/java/client-v2.md) directly if performance/direct access is critical.
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`clickhouse-jdbc` implements the standard JDBC interface using the latest [java client](/docs/en/integrations/language-clients/java/client-v2.md).
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We recommend using the latest [java client](/docs/en/integrations/language-clients/java/client-v2.md) directly if performance/direct access is critical.
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:::note
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If you're looking for a prior version of the JDBC driver docs, please see [here](/docs/en/integrations/language-clients/java/jdbc-v1.md).
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## Changes from 0.7.x
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In 0.8 we tried to make the driver more strictly follow the JDBC specification, so there are some removed features that may affect you:
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| Old Feature | Notes |
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|----------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| Transaction Support | Early versions of the driver only **simulated** transaction support, which could have unexpected results. |
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| Response Column Renaming | `ResultSet` was mutable - for efficiency sake they're now read-only |
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| Multi-Statement SQL | Multi-statement support was only **simulated**, now it strictly follows 1:1 |
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| Named Parameters | Not part of the JDBC spec |
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| Stream-based `PreparedStatement` | Early version of the driver allowed for non-jdbc usage of `PreparedStatement` - if you desire such options, we recommend looking at [Client-V2](/docs/en/integrations/language-clients/java/client-v2.md) and its [examples](https://github.com/ClickHouse/clickhouse-java/tree/main/examples/client-v2). |
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| Old Feature | Notes |
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|----------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| Transaction Support | Early versions of the driver only **simulated** transaction support, which could have unexpected results. |
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| Response Column Renaming | `ResultSet` was mutable - for efficiency sake they're now read-only |
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| Multi-Statement SQL | Multi-statement support was only **simulated**, now it strictly follows 1:1 |
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| Named Parameters | Not part of the JDBC spec |
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| Stream-based `PreparedStatement` | Early version of the driver allowed for non-jdbc usage of `PreparedStatement` - if you desire such options, we recommend looking at the [Java Client](/docs/en/integrations/language-clients/java/client-v2.md) and its [examples](https://github.com/ClickHouse/clickhouse-java/tree/main/examples/client-v2). |
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:::note
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`Date` is stored without timezone, while `DateTime` is stored with timezone. This can lead to unexpected results if you're not careful.
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**Connection Properties**:
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Beyond standard JDBC properties, the driver supports the ClickHouse-specific properties offered by the underlying [client](/docs/en/integrations/language-clients/java/client-v2.md).
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Beyond standard JDBC properties, the driver supports the ClickHouse-specific properties offered by the underlying [java client](/docs/en/integrations/language-clients/java/client-v2.md).
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Where possible methods will return an `SQLFeatureNotSupportedException` if the feature is not supported. Other custom properties include:
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| Property | Default | Description |
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|----------------------------------|---------|----------------------------------------------------------------|
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| `disable_frameworks_detection` | `true` | Disable frameworks detection for User-Agent |
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| `jdbc_ignore_unsupported_values` | `false` | Suppresses `SQLFeatureNotSupportedException` |
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| `clickhouse.jdbc.v1` | `false` | Use JDBC-V1 instead of JDBC-V2 |
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| `clickhouse.jdbc.v1` | `false` | Use older JDBC implementation instead of new JDBC |
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| `default_query_settings` | `null` | Allows passing of default query settings with query operations |
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## Supported data types
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JDBC Driver supports the same data formats as the underlying [client](/docs/en/integrations/language-clients/java/client-v2.md).
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JDBC Driver supports the same data formats as the underlying [java client](/docs/en/integrations/language-clients/java/client-v2.md).
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### Handling Dates, Times, and Timezones
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`java.sql.Date`, `java.sql.Time`, and `java.sql.Timestamp` can complicate how Timezones are calculated - though they're of course supported,
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```
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## More Information
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For more information, see our [GitHub repository](https://github.com/ClickHouse/clickhouse-java) and [Client-V2 documentation](/docs/en/integrations/language-clients/java/client-v2.md).
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For more information, see our [GitHub repository](https://github.com/ClickHouse/clickhouse-java) and [Java Client documentation](/docs/en/integrations/language-clients/java/client-v2.md).
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## Troubleshooting

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