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ClickHouse/docs/ru/query_language/table_functions/jdbc.md
BayoNet 2d2bc052e1
DOCAPI-8530: Code blocks markup fix (#7060) 
* Typo fix.

* Links fix.

* Fixed links in docs.

* More fixes.

* docs/en: cleaning some files

* docs/en: cleaning data_types

* docs/en: cleaning database_engines

* docs/en: cleaning development

* docs/en: cleaning getting_started

* docs/en: cleaning interfaces

* docs/en: cleaning operations

* docs/en: cleaning query_lamguage

* docs/en: cleaning en

* docs/ru: cleaning data_types

* docs/ru: cleaning index

* docs/ru: cleaning database_engines

* docs/ru: cleaning development

* docs/ru: cleaning general

* docs/ru: cleaning getting_started

* docs/ru: cleaning interfaces

* docs/ru: cleaning operations

* docs/ru: cleaning query_language

* docs: cleaning interfaces/http

* Update docs/en/data_types/array.md

decorated ```

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* Update docs/en/getting_started/example_datasets/nyc_taxi.md

fixed typo

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* Update docs/en/getting_started/example_datasets/ontime.md

fixed typo

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* Update docs/en/interfaces/formats.md

fixed error

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* Update docs/en/operations/table_engines/custom_partitioning_key.md

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* Update docs/en/operations/utils/clickhouse-local.md

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* Update docs/en/query_language/dicts/external_dicts_dict_sources.md

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* Update docs/en/operations/utils/clickhouse-local.md

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* Update docs/en/query_language/functions/json_functions.md

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* Update docs/en/query_language/functions/json_functions.md

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* Update docs/en/query_language/functions/other_functions.md

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* Update docs/en/query_language/functions/other_functions.md

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* Update docs/en/query_language/functions/date_time_functions.md

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* Update docs/en/operations/table_engines/jdbc.md

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* docs: fixed error

* docs: fixed error
2019-09-23 18:31:46 +03:00

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jdbc

jdbc(jdbc_connection_uri, schema, table) - возвращает таблицу, соединение с которой происходит через JDBC-драйвер.

Для работы этой табличной функциии требуется отдельно запускать приложение clickhouse-jdbc-bridge. Данная функция поддерживает Nullable типы (на основании DDL таблицы к которой происходит запрос).

Пример

SELECT * FROM jdbc('jdbc:mysql://localhost:3306/?user=root&password=root', 'schema', 'table')

SELECT * FROM jdbc('mysql://localhost:3306/?user=root&password=root', 'schema', 'table')

SELECT * FROM jdbc('datasource://mysql-local', 'schema', 'table')

Оригинальная статья