{"id":2787,"date":"2015-11-10T05:58:40","date_gmt":"2015-11-10T10:58:40","guid":{"rendered":"https:\/\/academy.sqlbak.com\/?p=2787"},"modified":"2015-11-12T09:33:49","modified_gmt":"2015-11-12T14:33:49","slug":"sql-server-extent","status":"publish","type":"post","link":"https:\/\/academy.sqlbak.com\/sql-server-extent\/","title":{"rendered":"SQL Server Extent"},"content":{"rendered":"

Eight physically contiguous pages in SQL Server database are\u00a0called the\u00a0extent<\/strong>. One page is 8 KB, therefore\u00a0one extent\u00a0is 64 KB.<\/p>\n

There are two types of extents in SQL Sever:<\/p>\n

    \n
  1. \u00a0All eight physically contiguous pages belong and can be used only by a single\u00a0object. This is a\u00a0uniform extent<\/strong>.
    \n\"Uniform<\/li>\n
  2. Each of the eight physically contiguous pages belongs and can be used by eight different objects. This type of extent is known as mixed<\/strong>.
    \n\"Mixed<\/li>\n<\/ol>\n

    Usually\u00a0all new tables or indexes are allocated pages from mixed extents. SQL Server extent switches from mixed to uniform type only when a table or index has at least eight or more pages.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Eight physically contiguous pages in SQL Server database are\u00a0called the\u00a0extent. One page is 8 KB, therefore\u00a0one extent\u00a0is 64 KB.<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[157],"tags":[],"yoast_head":"\nSQL Server Extent - Sql Server Backup Academy<\/title>\n<meta name=\"description\" content=\"Learn about SQL Server extent\" \/>\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\/sql-server-extent\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL Server Extent - Sql Server Backup Academy\" \/>\n<meta property=\"og:description\" content=\"Learn about SQL Server extent\" \/>\n<meta property=\"og:url\" content=\"https:\/\/academy.sqlbak.com\/sql-server-extent\/\" \/>\n<meta property=\"og:site_name\" content=\"Sql Server Backup Academy\" \/>\n<meta property=\"article:published_time\" content=\"2015-11-10T10:58:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-11-12T14:33:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/academy.sqlbak.com\/wp-content\/uploads\/2015\/10\/Uniform-extent.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\/sql-server-extent\/\",\"url\":\"https:\/\/academy.sqlbak.com\/sql-server-extent\/\",\"name\":\"SQL Server Extent - 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