Enable plan-affecting SQL Server query optimizer behavior that can be controlled by different trace flags on a specific-query level<\/a><\/p>\n<\/blockquote>\nThat KB article focuses mostly on QUERYTRACEON \u2013 but the CE trace flags can apply at the server-level scope as well.<\/p>\n
There are other combinations of CE enabling\/disabling that you can use, depending on your requirements, but I just wanted to point out what I think will be a more common scenario.<\/p>\n","protected":false},"excerpt":{"rendered":"
Consider the following scenario: You want to migrate all databases on a specific SQL Server instance to a new SQL Server 2014 instance You want to leverage new SQL Server 2014 functionality and move to the latest database compatibility level You don\u2019t want to enable the new Cardinality Estimator right away (various reasons why this […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[],"class_list":["post-1165","post","type-post","status-publish","format-standard","hentry","category-cardinality-estimation"],"yoast_head":"\n
Using the SQL Server 2014 Database Compatibility Level without the New CE - Joe Sack<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Using the SQL Server 2014 Database Compatibility Level without the New CE - Joe Sack\" \/>\n<meta property=\"og:description\" content=\"Consider the following scenario: You want to migrate all databases on a specific SQL Server instance to a new SQL Server 2014 instance You want to leverage new SQL Server 2014 functionality and move to the latest database compatibility level You don\u2019t want to enable the new Cardinality Estimator right away (various reasons why this […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/\" \/>\n<meta property=\"og:site_name\" content=\"Joe Sack\" \/>\n<meta property=\"article:published_time\" content=\"2014-03-02T21:53:18+00:00\" \/>\n<meta name=\"author\" content=\"Joseph Sack\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Joseph Sack\" \/>\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:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/\",\"url\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/\",\"name\":\"Using the SQL Server 2014 Database Compatibility Level without the New CE - Joe Sack\",\"isPartOf\":{\"@id\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/#website\"},\"datePublished\":\"2014-03-02T21:53:18+00:00\",\"dateModified\":\"2014-03-02T21:53:18+00:00\",\"author\":{\"@id\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/#\/schema\/person\/533eb0113a15fb5a6e8067a49e4ae648\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cardinality Estimation\",\"item\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/category\/cardinality-estimation\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Using the SQL Server 2014 Database Compatibility Level without the New CE\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/#website\",\"url\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/\",\"name\":\"Joe Sack\",\"description\":\"SQL Server Performance Tuning, High Availability and Disaster Recovery Blog\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/#\/schema\/person\/533eb0113a15fb5a6e8067a49e4ae648\",\"name\":\"Joseph Sack\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/a4b39a7719a6bfff1add3ec00527810734579ee114d6d983e8e68f937b77be96?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/a4b39a7719a6bfff1add3ec00527810734579ee114d6d983e8e68f937b77be96?s=96&d=mm&r=g\",\"caption\":\"Joseph Sack\"},\"description\":\"Joe Sack is a Principal Consultant with SQLskills. He has worked as a SQL Server professional since 1997 and has supported and developed for SQL Server environments in financial services, IT consulting, manufacturing, retail and the real estate industry. Prior to joining SQLskills he worked at Microsoft as a Premier Field Engineer supporting very large enterprise customer environments. He was responsible for providing deep SQL Server advisory services, training, troubleshooting and ongoing solutions guidance. His areas of expertise include performance tuning, scalability, T-SQL development and high-availability. In 2006 Joe earned the \u201cMicrosoft Certified Master: SQL Server 2005\u201d certification and in 2008 he earned the \u201cMicrosoft Certified Master: SQL Server 2008\u201d certification. In 2009 he took over responsibility for the entire SQL Server Microsoft Certified Master program and held that post until 2011. He was given the SQL Server MVP award in 2013.\",\"sameAs\":[\"http:\/\/3.209.169.194\/blogs\/joe\",\"https:\/\/twitter.com\/https:\/\/twitter.com\/josephsack\"],\"url\":\"https:\/\/www.sqlskills.com\/blogs\/joe\/author\/joe\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Using the SQL Server 2014 Database Compatibility Level without the New CE - Joe Sack","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/","og_locale":"en_US","og_type":"article","og_title":"Using the SQL Server 2014 Database Compatibility Level without the New CE - Joe Sack","og_description":"Consider the following scenario: You want to migrate all databases on a specific SQL Server instance to a new SQL Server 2014 instance You want to leverage new SQL Server 2014 functionality and move to the latest database compatibility level You don\u2019t want to enable the new Cardinality Estimator right away (various reasons why this […]","og_url":"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/","og_site_name":"Joe Sack","article_published_time":"2014-03-02T21:53:18+00:00","author":"Joseph Sack","twitter_misc":{"Written by":"Joseph Sack","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/","url":"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/","name":"Using the SQL Server 2014 Database Compatibility Level without the New CE - Joe Sack","isPartOf":{"@id":"https:\/\/www.sqlskills.com\/blogs\/joe\/#website"},"datePublished":"2014-03-02T21:53:18+00:00","dateModified":"2014-03-02T21:53:18+00:00","author":{"@id":"https:\/\/www.sqlskills.com\/blogs\/joe\/#\/schema\/person\/533eb0113a15fb5a6e8067a49e4ae648"},"breadcrumb":{"@id":"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.sqlskills.com\/blogs\/joe\/using-the-sql-server-2014-database-compatibility-level-without-the-new-ce\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.sqlskills.com\/blogs\/joe\/"},{"@type":"ListItem","position":2,"name":"Cardinality Estimation","item":"https:\/\/www.sqlskills.com\/blogs\/joe\/category\/cardinality-estimation\/"},{"@type":"ListItem","position":3,"name":"Using the SQL Server 2014 Database Compatibility Level without the New CE"}]},{"@type":"WebSite","@id":"https:\/\/www.sqlskills.com\/blogs\/joe\/#website","url":"https:\/\/www.sqlskills.com\/blogs\/joe\/","name":"Joe Sack","description":"SQL Server Performance Tuning, High Availability and Disaster Recovery Blog","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sqlskills.com\/blogs\/joe\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.sqlskills.com\/blogs\/joe\/#\/schema\/person\/533eb0113a15fb5a6e8067a49e4ae648","name":"Joseph Sack","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.sqlskills.com\/blogs\/joe\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/a4b39a7719a6bfff1add3ec00527810734579ee114d6d983e8e68f937b77be96?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a4b39a7719a6bfff1add3ec00527810734579ee114d6d983e8e68f937b77be96?s=96&d=mm&r=g","caption":"Joseph Sack"},"description":"Joe Sack is a Principal Consultant with SQLskills. He has worked as a SQL Server professional since 1997 and has supported and developed for SQL Server environments in financial services, IT consulting, manufacturing, retail and the real estate industry. Prior to joining SQLskills he worked at Microsoft as a Premier Field Engineer supporting very large enterprise customer environments. He was responsible for providing deep SQL Server advisory services, training, troubleshooting and ongoing solutions guidance. His areas of expertise include performance tuning, scalability, T-SQL development and high-availability. In 2006 Joe earned the \u201cMicrosoft Certified Master: SQL Server 2005\u201d certification and in 2008 he earned the \u201cMicrosoft Certified Master: SQL Server 2008\u201d certification. In 2009 he took over responsibility for the entire SQL Server Microsoft Certified Master program and held that post until 2011. He was given the SQL Server MVP award in 2013.","sameAs":["http:\/\/3.209.169.194\/blogs\/joe","https:\/\/twitter.com\/https:\/\/twitter.com\/josephsack"],"url":"https:\/\/www.sqlskills.com\/blogs\/joe\/author\/joe\/"}]}},"_links":{"self":[{"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/posts\/1165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/comments?post=1165"}],"version-history":[{"count":0,"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/posts\/1165\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/media?parent=1165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/categories?post=1165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sqlskills.com\/blogs\/joe\/wp-json\/wp\/v2\/tags?post=1165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}