{"id":3190,"date":"2015-12-01T09:21:37","date_gmt":"2015-12-01T14:21:37","guid":{"rendered":"https:\/\/academy.sqlbak.com\/?p=3190"},"modified":"2023-10-17T05:26:35","modified_gmt":"2023-10-17T09:26:35","slug":"simple-recovery-model","status":"publish","type":"post","link":"https:\/\/academy.sqlbak.com\/simple-recovery-model\/","title":{"rendered":"Simple Recovery Model"},"content":{"rendered":"<p>The simple recovery model allows full and differential database backups only, and there is no chance of making transaction log backup. At the time when a checkpoint is created in a simple recovery model, all committed transactions are removed from the transaction log. That means that point-in-time recovery isn&#8217;t possible.<!--more--><\/p>\n<p>So in which cases is it better to use a simple recovery model? There are four of them:<\/p>\n<ul>\n<li>There is no need to back up transaction logs<\/li>\n<li>There is no need for point-in-time recovery<\/li>\n<li>Losing some data is perfectly fine<\/li>\n<li>Database changes are infrequent<\/li>\n<\/ul>\n<p>Suppose full and differential backups are regularly created:<img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-3047 size-large\" src=\"https:\/\/academy.sqlbak.com\/wp-content\/uploads\/2015\/11\/Simple-Recovery-Model-3-648x300.png\" alt=\"Simple Recovery Model \" width=\"648\" height=\"300\" srcset=\"https:\/\/academy.sqlbak.com\/wp-content\/uploads\/2015\/11\/Simple-Recovery-Model-3.png 648w, https:\/\/academy.sqlbak.com\/wp-content\/uploads\/2015\/11\/Simple-Recovery-Model-3-300x139.png 300w\" sizes=\"(max-width: 648px) 100vw, 648px\" \/><br \/>\nAs seen from the picture above, the full database backup was made at 10:00 and 22:00 and the differential backup was made at 16:00. Assume that some crucial data were deleted at 19:00. The best thing that is possible to do is to restore the database as of\u00a016:00. First you need to restore the full backup (from 10:00) and then followed by the differential backup (from 16:00). In this case, all changes that were made within the time period from 16:00 to 22:00 will be lost.<\/p>\n<p>The database can be restored in the following way:<\/p>\n<pre><span style=\"color: #0000ff;\">RESTORE DATABASE<\/span> <em>your_database<\/em> <span style=\"color: #0000ff;\">FROM DISK<\/span> = <span style=\"color: #ff0000;\">'full_10_00.bak'<\/span> <span style=\"color: #0000ff;\">WITH NORECOVERY<\/span>, <span style=\"color: #ff00ff;\">REPLACE<\/span>\r\n<span style=\"color: #0000ff;\">RESTORE DATABASE<\/span> <em>your_database<\/em> <span style=\"color: #0000ff;\">FROM DISK<\/span> = <span style=\"color: #ff0000;\">'diff_16_00.bak'<\/span> <span style=\"color: #0000ff;\">WITH RECOVERY\r\n<\/span><\/pre>\n<p>This is how you can change your database recovery model to Simple<b>:<\/b><\/p>\n<pre><span style=\"color: #0000ff;\">ALTER DATABASE<\/span> <em>your_database<\/em> <span style=\"color: #0000ff;\">SET RECOVERY SIMPLE<\/span><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>The simple recovery model allows full and differential database backups only, and there is no chance of making transaction log backup. At the time when a checkpoint is created in a simple recovery model, all committed transactions are removed from the transaction log. That means that point-in-time recovery isn&#8217;t possible.<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[158],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Simple Recovery Model - Sql Server Backup Academy<\/title>\n<meta name=\"description\" content=\"Learn about SQL Server Simple Recovery Model\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/academy.sqlbak.com\/simple-recovery-model\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Simple Recovery Model - Sql Server Backup Academy\" \/>\n<meta property=\"og:description\" content=\"Learn about SQL Server Simple Recovery Model\" \/>\n<meta property=\"og:url\" content=\"https:\/\/academy.sqlbak.com\/simple-recovery-model\/\" \/>\n<meta property=\"og:site_name\" content=\"Sql Server Backup Academy\" \/>\n<meta property=\"article:published_time\" content=\"2015-12-01T14:21:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-17T09:26:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/academy.sqlbak.com\/wp-content\/uploads\/2015\/11\/Simple-Recovery-Model-3-648x300.png\" \/>\n<meta name=\"author\" content=\"Alexandr Omelchenko\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alexandr Omelchenko\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/academy.sqlbak.com\/simple-recovery-model\/\",\"url\":\"https:\/\/academy.sqlbak.com\/simple-recovery-model\/\",\"name\":\"Simple Recovery Model - 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