### 创建引擎（Engine）

SQLModel 的引擎 `engine`（实际上它是一个 SQLAlchemy `engine` ）是用来与数据库**保持连接**的。

您只需构建**一个 `engine`**，来让您的所有代码连接到同一个数据库。

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

使用 `check_same_thread=False` 可以让 FastAPI 在不同线程中使用同一个 SQLite 数据库。这很有必要，因为**单个请求**可能会使用**多个线程**（例如在依赖项中）。

不用担心，我们会按照代码结构确保**每个请求使用一个单独的 SQLModel *会话***，这实际上就是 `check_same_thread` 想要实现的。

### 创建表

x443, x444 = bits.Add64(x404, x430, uint64(p384Uint1(x442))) var x445 uint64 var x446 uint64 x445, x446 = bits.Add64(x406, x432, uint64(p384Uint1(x444))) var x447 uint64 var x448 uint64 x447, x448 = bits.Add64(x408, x434, uint64(p384Uint1(x446))) var x449 uint64 var x450 uint64 x449, x450 = bits.Add64(x410, x436, uint64(p384Uint1(x448))) var x451 uint64 var x452 uint64 x451, x452 = bits.Add64(x412, x438, uint64(p384Uint1(x450))) x453 := (uint64(p384Uint1(x452)) + uint64(p384Uint1(x413))) var x454 uint64...

You would have **one single `engine` object** for all your code to connect to the same database.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

Using `check_same_thread=False` allows FastAPI to use the same SQLite database in different threads. This is necessary as **one single request** could use **more than one thread** (for example in dependencies).

Sie hätten **ein einziges `engine`-Objekt** für Ihren gesamten Code, um sich mit derselben Datenbank zu verbinden.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

### 엔진 생성하기

SQLModel의 `engine` (내부적으로는 SQLAlchemy `engine`)은 데이터베이스에 대한 **연결을 유지**하는 역할을 합니다.

**하나의 단일 engine 객체**를 통해 코드 전체에서 동일한 데이터베이스에 연결할 수 있습니다.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

`check_same_thread=False`를 사용하면 FastAPI에서 여러 스레드에서 동일한 SQLite 데이터베이스를 사용할 수 있습니다. 이는 **하나의 단일 요청**이 **여러 스레드**를 사용할 수 있기 때문에 필요합니다(예: 의존성에서 사용되는 경우).

`httpcookiemaxnum=0` will allow the cookie parsing to accept an indefinite
number of cookies. To avoid denial of service attacks, this setting and default
was backported to Go 1.25.2 and Go 1.24.8.

Go 1.26 added a new `urlstrictcolons` setting that controls whether `net/url.Parse`
allows malformed hostnames containing colons outside of a bracketed IPv6 address.

    checkInitialCapacity(1, 0, 1);
    checkInitialCapacity(1, 1, 1);
    checkInitialCapacity(1, 2, 2);
    checkInitialCapacity(1, 3, 4);
    checkInitialCapacity(1, 4, 4);
    checkInitialCapacity(1, 5, 8);
    checkInitialCapacity(1, 6, 8);
    checkInitialCapacity(1, 7, 8);
    checkInitialCapacity(1, 8, 8);

    checkInitialCapacity(2, 0, 1);

    checkInitialCapacity(1, 0, 1);
    checkInitialCapacity(1, 1, 1);
    checkInitialCapacity(1, 2, 2);
    checkInitialCapacity(1, 3, 4);
    checkInitialCapacity(1, 4, 4);
    checkInitialCapacity(1, 5, 8);
    checkInitialCapacity(1, 6, 8);
    checkInitialCapacity(1, 7, 8);
    checkInitialCapacity(1, 8, 8);

    checkInitialCapacity(2, 0, 1);

* 📝 Update docs about re-raising validation errors, do not include string as is to not leak information. PR [#14487](https://github.com/fastapi/fastapi/pull/14487) by [@tiangolo](https://github.com/tiangolo).
* 🔥 Remove external links section. PR [#14486](https://github.com/fastapi/fastapi/pull/14486) by [@tiangolo](https://github.com/tiangolo).

### Translations

		p.errorf("overlapping DATA entry for %s", name)
		return
	}
	p.dataAddr[name] = nameAddr.Offset + int64(sz)

	switch valueAddr.Type {
	case obj.TYPE_CONST:
		switch sz {
		case 1, 2, 4, 8:
			nameAddr.Sym.WriteInt(p.ctxt, nameAddr.Offset, sz, valueAddr.Offset)
		default:
			p.errorf("bad int size for DATA argument: %d", sz)
		}
	case obj.TYPE_FCONST:
		switch sz {
		case 4: