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# Database
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This schema defines the Database entity. A database also referred to as Database Catalog is a collection tables.
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2021-08-13 15:48:38 +00:00
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**$id:** [**https://open-metadata.org/schema/entity/data/database.json**](https://open-metadata.org/schema/entity/data/database.json)
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Type: `object`
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## Properties
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* **id**
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* Unique identifier that identifies this database instance.
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* $ref: [../../type/basic.json\#/definitions/uuid](database.md#....typebasic.jsondefinitionsuuid)
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* **name** `required`
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* Name that identifies the database.
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* $ref: [\#/definitions/databaseName](database.md#/definitions/databaseName)
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* **fullyQualifiedName**
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* Name that uniquely identifies a database in the format 'ServiceName.DatabaseName'.
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* Type: `string`
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* **description**
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* Description of the database instance.
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* Type: `string`
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* **href**
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* Link to the resource corresponding to this entity.
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* $ref: [../../type/basic.json\#/definitions/href](database.md#....typebasic.jsondefinitionshref)
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* **owner**
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* Owner of this database.
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* $ref: [../../type/entityReference.json](database.md#....typeentityreference.json)
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* **service** `required`
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* Link to the database cluster/service where this database is hosted in.
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* $ref: [../../type/entityReference.json](database.md#....typeentityreference.json)
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* **usageSummary**
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* Latest usage information for this database.
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* $ref: [../../type/usageDetails.json](database.md#....typeusagedetails.json)
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* **tables**
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* References to tables in the database.
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* $ref: [../../type/entityReference.json\#/definitions/entityReferenceList](database.md#....typeentityreference.jsondefinitionsentityreferencelist)
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## Types definitions in this schema
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**databaseName**
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2021-08-13 08:26:20 -07:00
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* Name that identifies the database.
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* Type: `string`
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* The value must match this pattern: `^[^.]*$`
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* Length: between 1 and 64
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