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60 lines
1.4 KiB
Markdown
60 lines
1.4 KiB
Markdown
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---
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toc_priority: 54
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toc_title: dictionary
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---
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# dictionary {#dictionary-function}
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Отображает данные [словаря](../../sql-reference/dictionaries/external-dictionaries/external-dicts.md) как таблицу ClickHouse. Работает аналогично движку [Dictionary](../../engines/table-engines/special/dictionary.md).
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**Синтаксис**
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``` sql
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dictionary('dict')
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```
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**Аргументы**
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- `dict` — имя словаря. [String](../../sql-reference/data-types/string.md).
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**Возвращаемое значение**
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Таблица ClickHouse.
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**Пример**
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Входная таблица `dictionary_source_table`:
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``` text
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┌─id─┬─value─┐
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│ 0 │ 0 │
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│ 1 │ 1 │
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└────┴───────┘
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```
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Создаем словарь:
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``` sql
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CREATE DICTIONARY new_dictionary(id UInt64, value UInt64 DEFAULT 0) PRIMARY KEY id
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SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() USER 'default' TABLE 'dictionary_source_table')) LAYOUT(DIRECT());
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```
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Запрос:
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``` sql
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SELECT * FROM dictionary('new_dictionary');
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```
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Результат:
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``` text
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┌─id─┬─value─┐
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│ 0 │ 0 │
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│ 1 │ 1 │
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└────┴───────┘
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```
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**Смотрите также**
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- [Движок Dictionary](../../engines/table-engines/special/dictionary.md#dictionary)
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