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ClickHouse/docs/fr/sql-reference/dictionaries/index.md
BayoNet dba72d73fe
DOCS-624: Fixing links to nowhere (#10675) 
* enbaskakova-DOCSUP-652 (#101)

* "docs(orNull&orDefault): Functions 'orNull&orDefault' have been edited"

* "docs(orNull&orDefault): Functions 'orNull&orDefault' have been edited"

* "docs(orNull&orDefault): Functions 'orNull&orDefault' have been edited"

* 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

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

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

* "docs(orNull&orDefault): Functions 'orNull&orDefault' have been edited"

* "docs(orNull&orDefault): Functions 'orNull&orDefault' have been edited"

* "docs(orNull&orDefault): Functions 'orNull&orDefault' have been edited"

Co-authored-by: elenbaskakova <elenbaskakova@yandex-team.ru>
Co-authored-by: BayoNet <da-daos@yandex.ru>

* 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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true f865c9653f Dictionaries 35 Introduction

Dictionnaire

Un dictionnaire est une cartographie (key -> attributes) qui est pratique pour différents types de listes de référence.

ClickHouse prend en charge des fonctions spéciales pour travailler avec des dictionnaires qui peuvent être utilisés dans les requêtes. Il est plus facile et plus efficace d’utiliser des dictionnaires avec des fonctions que par une JOIN avec des tableaux de référence.

NULL les valeurs ne peuvent pas être stockées dans un dictionnaire.

Supports ClickHouse:

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