ClickHouse/docs/tr/sql-reference/dictionaries/external-dictionaries/external-dicts-dict-hierarchical.md
Ivan Blinkov cd14f9ebcb
SQL reference refactoring (#10857)
* split up select.md

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* prewhere.md basic refactoring

* adjust operators/index.md links

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* basic refactor of remaining select clauses

* absolute paths in make_links.sh

* run make_links.sh

* remove old select.md locations

* translate docs/es

* translate docs/fr

* translate docs/fa

* remove old operators.md location

* change operators.md links

* adjust links in docs/es

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* minor texts adjustments

* wip

* update machine translations to use new links

* fix changelog

* es build fixes

* get rid of some select.md links

* temporary adjust ru links

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* improve curly brace handling

* adjust ru as well

* fa build fix

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* temporary disable part of anchor checks
2020-05-15 07:34:54 +03:00

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---
machine_translated: true
machine_translated_rev: 72537a2d527c63c07aa5d2361a8829f3895cf2bd
toc_priority: 45
toc_title: "Hiyerar\u015Fik s\xF6zl\xFCkler"
---
# Hiyerarşik Sözlükler {#hierarchical-dictionaries}
ClickHouse bir hiyerarşik sözlükler destekler [sayısal tuş](external-dicts-dict-structure.md#ext_dict-numeric-key).
Aşağıdaki hiyerarşik yapıya bakın:
``` text
0 (Common parent)
├── 1 (Russia)
│ │
│ └── 2 (Moscow)
│ │
│ └── 3 (Center)
└── 4 (Great Britain)
└── 5 (London)
```
Bu hiyerarşi aşağıdaki sözlük tablosu olarak ifade edilebilir.
| region\_id | parent\_region | region\_name |
|------------|----------------|--------------|
| 1 | 0 | Rusya |
| 2 | 1 | Moskova |
| 3 | 2 | Merkezli |
| 4 | 0 | İngiltere |
| 5 | 4 | Londra |
Bu tablo bir sütun içerir `parent_region` bu öğe için en yakın ebeveynin anahtarını içerir.
ClickHouse destekler [hiyerarşik](external-dicts-dict-structure.md#hierarchical-dict-attr) için mülkiyet [dış sözlük](index.md) öznitelik. Bu özellik, yukarıda açıklanana benzer hiyerarşik sözlüğü yapılandırmanıza izin verir.
Bu [dictGetHierarchy](../../../sql-reference/functions/ext-dict-functions.md#dictgethierarchy) fonksiyonu bir elemanın üst zincir almak için izin verir.
Örneğimiz için, sözlüğün yapısı aşağıdaki gibi olabilir:
``` xml
<dictionary>
<structure>
<id>
<name>region_id</name>
</id>
<attribute>
<name>parent_region</name>
<type>UInt64</type>
<null_value>0</null_value>
<hierarchical>true</hierarchical>
</attribute>
<attribute>
<name>region_name</name>
<type>String</type>
<null_value></null_value>
</attribute>
</structure>
</dictionary>
```
[Orijinal makale](https://clickhouse.tech/docs/en/query_language/dicts/external_dicts_dict_hierarchical/) <!--hide-->