{"title":"模型和数据库","version":"4.0","locale":"zh-hans","docname":"topics/db/index","url":"/zh-hans/4.0/topics/db/","canonical":"https://djangodocs.dev/zh-hans/4.0/topics/db/","summary":"模型准确且唯一的描述了数据。它包含您储存的数据的重要字段和行为。一般来说，每一个模型都映射一张数据库表。 模型 执行查询 聚合 搜索 管理器 执行原生 SQL 查询 数据库事务 多数据库 表空间（Tablespaces） 数据库访问优化 数据库工具 模型关联 API 用法示例","html":"<span id=\"models-and-databases\"></span><h1>模型和数据库<a class=\"heading-anchor\" href=\"#module-django.db\"><span class=\"visually-hidden\">Link to this heading</span><span aria-hidden=\"true\">#</span></a></h1>\n<p>模型准确且唯一的描述了数据。它包含您储存的数据的重要字段和行为。一般来说，每一个模型都映射一张数据库表。</p>\n<div class=\"toctree-wrapper compound\">\n<ul>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/models/\">模型</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/queries/\">执行查询</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/aggregation/\">聚合</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/search/\">搜索</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/managers/\">管理器</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/sql/\">执行原生 SQL 查询</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/transactions/\">数据库事务</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/multi-db/\">多数据库</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/tablespaces/\">表空间（Tablespaces）</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/optimization/\">数据库访问优化</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/instrumentation/\">数据库工具</a></li>\n<li class=\"toctree-l1\"><a class=\"reference internal\" href=\"/zh-hans/4.0/topics/db/examples/\">模型关联 API 用法示例</a></li>\n</ul>\n</div>","rootId":"module-django.db","toc":[],"breadcrumbs":[{"docname":"topics/index","title":"使用 Django","url":"/zh-hans/4.0/topics/"}],"prev":{"docname":"topics/install","title":"如何安装 Django","url":"/zh-hans/4.0/topics/install/"},"next":{"docname":"topics/db/models","title":"模型","url":"/zh-hans/4.0/topics/db/models/"},"formats":{"html":"/zh-hans/4.0/topics/db/","markdown":"/zh-hans/4.0/topics/db.md","json":"/zh-hans/4.0/topics/db.json"},"source":"https://github.com/django/django/blob/stable/4.0.x/docs/topics/db/index.txt","official":"https://docs.djangoproject.com/zh-hans/4.0/topics/db/","inVersions":["6.1","6.0","5.2","5.1","5.0","4.2","4.1","4.0","3.2","3.1","3.0","2.2","2.1","2.0"],"inLocales":["en","zh-hans","fr","ja","id","it","pt-br","ko","es","el","pl"]}