# Sub-Document 部分更新操作

[Sub-Document Operations](https://developer.couchbase.com/documentation/server/5.5/sdk/subdocument-operations.html#page-template-attributes)

从Couchbase Server 4.5开始，可以自动、高效地更新和检索局部文档。

参考资料:

[Does Couchbase partial JSON update?](https://forums.couchbase.com/t/does-couchbase-partial-json-update/5206)

[Sub document update for a nested array document](https://forums.couchbase.com/t/sub-document-update-for-a-nested-array-document/13232)

[devguide-examples/nodejs/subdoc.js](https://github.com/xiaoxiami/couchbase/tree/29f57ff68db830faf91c6df1f3ef90e5771a901f/h%20ttps:/github.com/couchbaselabs/devguide-examples/blob/master/nodejs/subdoc.js)

[How to Update Parts of a document in Couchbase](https://stackoverflow.com/questions/37246934/how-to-update-parts-of-a-document-in-couchbase)

[Couchbase N1QL: Update on nested Documents](https://stackoverflow.com/questions/29581646/couchbase-n1ql-update-on-nested-documents)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

The question should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.