> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/15/client-interfaces.md).

# IV. 用戶端介面

這部分描述了使用 PostgreSQL 的用戶端程式介面。這些章節中的每一章都可以獨立閱讀。請注意，用戶端程序還有許多其他程式介面，這些程式介面獨立發佈並包含自己的文件（[附錄 H](https://github.com/pgsql-tw/gitbook-docs/blob/master/tw/appendixes/h.-wai-bu-zhuan-an) 列出了一些較受歡迎的文件）。這部分的讀者應該熟悉使用 SQL 指令來操作和查詢資料庫（請參閱[第 II 部分](/15/the-sql-language.md)），當然還有程序語言的介面使用方式。


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# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.postgresql.tw/15/client-interfaces.md?ask=<question>
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