title: "sys.xml_schema_collections (Transact-SQL) | Microsoft Docs" ms.custom: "" ms.date: "03/14/2017" ms.prod: "sql" ms.prod_service: "database-engine, sql-database" ms.service: "" ms.component: "system-catalog-views" ms.reviewer: "" ms.suite: "sql" ms.technology:
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- "sys.xml_schema_collections_TSQL"
- "sys.xml_schema_collections"
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- "sys.xml_schema_collections catalog view" ms.assetid: f3f7f3dc-029f-4942-ab3c-75fa9814e40f caps.latest.revision: 34 author: "douglaslMS" ms.author: "douglasl" manager: "craigg" ms.workload: "Inactive" monikerRange: "= azuresqldb-current || >= sql-server-2016 || = sqlallproducts-allversions"
[!INCLUDEtsql-appliesto-ss2008-asdb-xxxx-xxx-md]
Returns a row per XML schema collection. An XML schema collection is a named set of XSD definitions. The XML schema collection itself is contained in a relational schema, and it is identified by a schema-scoped [!INCLUDEtsql] name. The following tuples are unique: xml_collection_id, and schema_id and name.
| Column name | Data type | Description |
|---|---|---|
| xml_collection_id | int | ID of the XML schema collection. Unique within the database. |
| schema_id | int | ID of the relational schema that contains this XML schema collection. |
| principal_id | int | ID of the individual owner if different from the schema owner. By default, schema-contained objects are owned by the schema owner. However, an alternate owner may be specified by using the ALTER AUTHORIZATION statement to change ownership. NULL = No alternate individual owner. |
| name | sysname | Name of the XML schema collection. |
| create_date | datetime | Date the XML schema collection was created. |
| modify_date | datetime | Date the XML schema collection was last altered. |
[!INCLUDEssCatViewPerm] For more information, see Metadata Visibility Configuration.
Catalog Views (Transact-SQL)
XML Schemas (XML Type System) Catalog Views (Transact-SQL)
Querying the SQL Server System Catalog FAQ