ClickHouse/docs/ru/sql-reference/dictionaries/index.md
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DOCS-624: Fixing links to nowhere (#10675)
* enbaskakova-DOCSUP-652 (#101)

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* Update docs/en/sql_reference/aggregate_functions/combinators.md

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* Update docs/en/sql_reference/aggregate_functions/combinators.md

Co-Authored-By: BayoNet <da-daos@yandex.ru>

* Update docs/en/sql_reference/aggregate_functions/combinators.md

Co-Authored-By: BayoNet <da-daos@yandex.ru>

* Update docs/en/sql_reference/aggregate_functions/combinators.md

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* Update docs/en/sql_reference/aggregate_functions/combinators.md

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Co-authored-by: elenbaskakova <elenbaskakova@yandex-team.ru>
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* Revert "enbaskakova-DOCSUP-652 (#101)" (#107)

This reverts commit 639fee7610.

* CLICKHOUSEDOCS-624: Fixed links. Was 60, became 13.

* CLICKHOUSEDOCS-624: Finished fix links in Enlish version.

* CLICKHOUSEDOCS-624: Fixed RU links

Co-authored-by: elenaspb2019 <47083263+elenaspb2019@users.noreply.github.com>
Co-authored-by: elenbaskakova <elenbaskakova@yandex-team.ru>
Co-authored-by: Sergei Shtykov <bayonet@yandex-team.ru>
2020-05-06 09:13:29 +03:00

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# Словари {#slovari}
Словарь — это отображение (`ключ -> атрибуты`), которое удобно использовать для различного вида справочников.
ClickHouse поддерживает специальные функции для работы со словарями, которые можно использовать в запросах. Проще и эффективнее использовать словари с помощью функций, чем `JOIN` с таблицами-справочниками.
В словаре нельзя хранить значения [NULL](../../sql-reference/syntax.md#null-literal).
ClickHouse поддерживает:
- [Встроенные словари](internal-dicts.md#internal_dicts) со специфическим [набором функций](../../sql-reference/dictionaries/external-dictionaries/index.md).
- [Подключаемые (внешние) словари](external-dictionaries/external-dicts.md#dicts-external-dicts) с [набором функций](../../sql-reference/dictionaries/external-dictionaries/index.md).
[Оригинальная статья](https://clickhouse.tech/docs/ru/query_language/dicts/) <!--hide-->