# 36.42. schemata

此檢視表 schemata 包含目前資料庫中目前使用者有權限存取的所有 schema（透過成為擁有者或具有某些權限）。

#### **Table 36.40. `schemata` Columns**

| Name                            | Data Type        | Description                                      |
| ------------------------------- | ---------------- | ------------------------------------------------ |
| `catalog_name`                  | `sql_identifier` | 查詢當下的資料庫名稱（只會是目前資料庫）                             |
| `schema_name`                   | `sql_identifier` | Name of the schema                               |
| `schema_owner`                  | `sql_identifier` | Name of the owner of the schema                  |
| `default_character_set_catalog` | `sql_identifier` | Applies to a feature not available in PostgreSQL |
| `default_character_set_schema`  | `sql_identifier` | Applies to a feature not available in PostgreSQL |
| `default_character_set_name`    | `sql_identifier` | Applies to a feature not available in PostgreSQL |
| `sql_path`                      | `character_data` | Applies to a feature not available in PostgreSQL |


---

# 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:

```
GET https://docs.postgresql.tw/14/client-interfaces/the-information-schema/schemata.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

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.