{"id":3273,"date":"2024-03-13T06:41:54","date_gmt":"2024-03-13T06:41:54","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-configure-multiple-databases-for-a-single-django-app\/"},"modified":"2025-07-30T13:52:22","modified_gmt":"2025-07-30T13:52:22","slug":"how-to-configure-multiple-databases-for-a-single-django-app","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-configure-multiple-databases-for-a-single-django-app\/","title":{"rendered":"Django Multiple Databases Setup Guide"},"content":{"rendered":"<p>In Django, it is possible to configure multiple databases for a single app. Here are the steps to configure multiple databases for a single app.<\/p>\n<ol>\n<li>Define multiple database connection information in settings.py.<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>DATABASES = {\r\n    <span class=\"hljs-string\">'default'<\/span>: {\r\n        <span class=\"hljs-string\">'ENGINE'<\/span>: <span class=\"hljs-string\">'django.db.backends.sqlite3'<\/span>,\r\n        <span class=\"hljs-string\">'NAME'<\/span>: BASE_DIR \/ <span class=\"hljs-string\">'db.sqlite3'<\/span>,\r\n    },\r\n    <span class=\"hljs-string\">'db1'<\/span>: {\r\n        <span class=\"hljs-string\">'ENGINE'<\/span>: <span class=\"hljs-string\">'django.db.backends.mysql'<\/span>,\r\n        <span class=\"hljs-string\">'NAME'<\/span>: <span class=\"hljs-string\">'database1'<\/span>,\r\n        <span class=\"hljs-string\">'USER'<\/span>: <span class=\"hljs-string\">'username1'<\/span>,\r\n        <span class=\"hljs-string\">'PASSWORD'<\/span>: <span class=\"hljs-string\">'password1'<\/span>,\r\n        <span class=\"hljs-string\">'HOST'<\/span>: <span class=\"hljs-string\">'localhost'<\/span>,\r\n        <span class=\"hljs-string\">'PORT'<\/span>: <span class=\"hljs-string\">'3306'<\/span>,\r\n    },\r\n    <span class=\"hljs-string\">'db2'<\/span>: {\r\n        <span class=\"hljs-string\">'ENGINE'<\/span>: <span class=\"hljs-string\">'django.db.backends.mysql'<\/span>,\r\n        <span class=\"hljs-string\">'NAME'<\/span>: <span class=\"hljs-string\">'database2'<\/span>,\r\n        <span class=\"hljs-string\">'USER'<\/span>: <span class=\"hljs-string\">'username2'<\/span>,\r\n        <span class=\"hljs-string\">'PASSWORD'<\/span>: <span class=\"hljs-string\">'password2'<\/span>,\r\n        <span class=\"hljs-string\">'HOST'<\/span>: <span class=\"hljs-string\">'localhost'<\/span>,\r\n        <span class=\"hljs-string\">'PORT'<\/span>: <span class=\"hljs-string\">'3306'<\/span>,\r\n    },\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>Specify which database to use in the models.py of the app.<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Model1<\/span>(models.Model):\r\n    field1 = models.CharField(max_length=<span class=\"hljs-number\">100<\/span>)\r\n\r\n    <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Meta<\/span>:\r\n        app_label = <span class=\"hljs-string\">'myapp'<\/span>\r\n        db_table = <span class=\"hljs-string\">'model1'<\/span>\r\n        using = <span class=\"hljs-string\">'db1'<\/span>\r\n\r\n<span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Model2<\/span>(models.Model):\r\n    field2 = models.CharField(max_length=<span class=\"hljs-number\">100<\/span>)\r\n\r\n    <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Meta<\/span>:\r\n        app_label = <span class=\"hljs-string\">'myapp'<\/span>\r\n        db_table = <span class=\"hljs-string\">'model2'<\/span>\r\n        using = <span class=\"hljs-string\">'db2'<\/span>\r\n<\/code><\/pre>\n<p>In the example above, Model1 and Model2 specify the use of the db1 and db2 databases, respectively.<\/p>\n<ol>\n<li>If you need to perform database operations in your view functions or elsewhere, you can use the &#8220;using&#8221; method to specify which database to use.<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">from<\/span> myapp.models <span class=\"hljs-keyword\">import<\/span> Model1, Model2\r\n\r\n<span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">my_view<\/span>(<span class=\"hljs-params\">request<\/span>):\r\n    <span class=\"hljs-comment\"># \u4f7f\u7528db1\u6570\u636e\u5e93<\/span>\r\n    model1_objects = Model1.objects.using(<span class=\"hljs-string\">'db1'<\/span>).<span class=\"hljs-built_in\">all<\/span>()\r\n\r\n    <span class=\"hljs-comment\"># \u4f7f\u7528db2\u6570\u636e\u5e93<\/span>\r\n    model2_objects = Model2.objects.using(<span class=\"hljs-string\">'db2'<\/span>).<span class=\"hljs-built_in\">all<\/span>()\r\n<\/code><\/pre>\n<p>By following the steps above, you can configure multiple databases for a single app and specify which database to use for database operations in models, views, and other places.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Django, it is possible to configure multiple databases for a single app. Here are the steps to configure multiple databases for a single app. Define multiple database connection information in settings.py. DATABASES = { &#8216;default&#8217;: { &#8216;ENGINE&#8217;: &#8216;django.db.backends.sqlite3&#8217;, &#8216;NAME&#8217;: BASE_DIR \/ &#8216;db.sqlite3&#8217;, }, &#8216;db1&#8217;: { &#8216;ENGINE&#8217;: &#8216;django.db.backends.mysql&#8217;, &#8216;NAME&#8217;: &#8216;database1&#8217;, &#8216;USER&#8217;: &#8216;username1&#8217;, &#8216;PASSWORD&#8217;: &#8216;password1&#8217;, &#8216;HOST&#8217;: [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[1172,1175,1171,1173,1174],"class_list":["post-3273","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-django-database-config","tag-django-multi-db","tag-django-multiple-databases","tag-django-settings","tag-django-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Django Multiple Databases Setup Guide - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to configure multiple databases in Django apps. 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