{"id":13661,"date":"2015-06-24T10:00:00","date_gmt":"2015-06-24T17:00:00","guid":{"rendered":""},"modified":"2024-01-22T22:50:13","modified_gmt":"2024-01-23T06:50:13","slug":"sql-server-2016-community-technology-preview-2-1-is-available","status":"publish","type":"post","link":"https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/2015\/06\/24\/sql-server-2016-community-technology-preview-2-1-is-available\/","title":{"rendered":"SQL Server 2016 Community Technology Preview 2.1 is available"},"content":{"rendered":"

Following the release of SQL Server 2016 CTP 2.0<\/a> last month, the SQL Server engineering team is excited to announce the immediate availability of CTP 2.1 release for download<\/a>. The release includes improvements for three new innovations releasing in SQL Server 2016 – Stretch Database, Query Store, Temporal – and Columnstore Index, introduced in SQL Server 2012:<\/p>\n

    \n
  1. \nStretch<\/b> Database, <\/b>which enables transparent stretching of warm and cold OLTP data to Microsoft Azure in a secure manner without requiring any application changes, includes the following fixes:<\/p>\n
      \n
    1. Data migration does not trigger lock escalation in stretched tables, so no timeouts for INSERT or SELECT operations<\/li>\n
    2. Automatic encryption and validation requirement of remote server certification, preventing \u201cman-in-the-middle\u201d security attacks<\/li>\n
    3. Ability to run INSERT statement against updatable views created on top of stretch tables<\/li>\n<\/ol>\n<\/li>\n
    4. \nQuery Store<\/b>, the \u201cflight recorder\u201d which stores historical query plans and their performance characteristics, allowing DBAs to monitor and analyze plans and force a specific query plan on regression, includes:<\/p>\n
        \n
      1. Parse statistics avg_parse_duration, last_parse_duration, avg_parse_cpu_time, last_parse_cpu_time removed from sys.query_store_query view<\/li>\n
      2. The minimally allowed for flush_interval_seconds parameter, 60 seconds, is now verified in ALTER DATABASE statement<\/li>\n
      3. Naming in sys.database_query_store_options and actual parameters in ALTER statements are in alignment with flush_interval_seconds and operation_mode<\/li>\n
      4. Query Store on master and tempdb disabled and error message thrown (“Cannot perform action because Query Store cannot be enabled on system database master (tempdb)”)<\/li>\n
      5. Force_failure_count parameter is now cleared after plan is enforced<\/li>\n<\/ol>\n<\/li>\n
      6. \nTemporal<\/b>, which enables handling and analyzing database records that changes over time, includes:<\/p>\n
          \n
        1. Support for computed columns<\/li>\n
        2. Support for marking one or both period columns with HIDDEN flag, allowing for frictionless migration for existing applications. The following applies to HIDDEN period columns:\n
            \n
          1. \n
              \n
            1. Column is not returned in SELECT * statements<\/li>\n
            2. INSERT statement without column list <\/i>do not expect inputs for HIDDEN columns<\/li>\n
            3. Hidden column must be explicitly included in all queries that directly reference temporal table or other objects that reference temporal table (views, for example)<\/li>\n
            4. BULK INSERT scripts that worked with non-temporal table (prior to adding system-versioning and hidden period columns) will continue to work and hidden columns will be auto-populated<\/li>\n
            5. is_hidden flag is set to 1 in sys.columns view<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

              \n<\/li>\n<\/ol>\n<\/li>\n

            6. \nColumnstore Index <\/b>includes:<\/b><\/p>\n
                \n
              1. Improved seek performance<\/li>\n
              2. Improved scan performance with partitioned tables<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

                \u00a0<\/p>\n

                \u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

                Following the release of SQL Server 2016 CTP 2.0 last month, the SQL Server engineering team is excited to announce the immediate availability of CTP 2.1 release for download.<\/p>\n","protected":false},"author":1457,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"_classifai_error":"","_classifai_text_to_speech_error":"","footnotes":""},"post_tag":[],"product":[5227,2403],"content-type":[2448],"topic":[],"coauthors":[2487],"class_list":["post-13661","post","type-post","status-publish","format-standard","hentry","product-sql","product-sql-server-2016","content-type-updates"],"yoast_head":"\nSQL Server 2016 Community Technology Preview 2.1 is available - Microsoft SQL Server Blog<\/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.microsoft.com\/en-us\/sql-server\/blog\/2015\/06\/24\/sql-server-2016-community-technology-preview-2-1-is-available\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL Server 2016 Community Technology Preview 2.1 is available - 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