{"id":18615,"date":"2022-11-01T10:42:06","date_gmt":"2022-11-01T05:12:06","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-sql-grouping-on-time-interval\/"},"modified":"2022-11-01T10:42:06","modified_gmt":"2022-11-01T05:12:06","slug":"solved-sql-grouping-on-time-interval","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-sql-grouping-on-time-interval\/","title":{"rendered":"[Solved] SQL grouping on time interval"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-31289379\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"31289379\" data-parentid=\"31288744\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<pre><code>WITH changes AS (\n  SELECT \"DATE\",\n         CASE WHEN LAG( \"DATE\" ) OVER ( ORDER BY \"DATE\" ) + INTERVAL '5' MINUTE = \"DATE\" THEN 0 ELSE 1 END AS has_changed_group\n  FROM   TEST\n), grps AS (\n  SELECT \"DATE\",\n         SUM( has_changed_group ) OVER ( ORDER BY \"DATE\" ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) AS grp\n  FROM   changes\n)\nSELECT MIN( \"DATE\" ) AS shutdown_start,\n       MAX( \"DATE\" ) AS shutdown_end,\n       MAX( \"DATE\" ) - MIN( \"DATE\" ) + INTERVAL '5' MINUTE AS shutdown_duration\nFROM   grps\nGROUP BY grp;\n<\/code><\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre><code>SHUTDOWN_START               SHUTDOWN_END                 SHUTDOWN_DURATION\n---------------------------- ---------------------------- -----------------\n07-JUL-15 12.05.00.000000000 07-JUL-15 12.15.00.000000000 0 0:15:0.0        \n07-JUL-15 12.35.00.000000000 07-JUL-15 12.50.00.000000000 0 0:20:0.0        \n07-JUL-15 13.05.00.000000000 07-JUL-15 13.15.00.000000000 0 0:15:0.0  \n<\/code><\/pre>\n<p><strong>Edit &#8211; Multiple machines:<\/strong><\/p>\n<p><a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/sqlfiddle.com\/#!4\/5be04\/5\">SQL Fiddle<\/a><\/p>\n<p><strong>Oracle 11g R2 Schema Setup<\/strong>:<\/p>\n<pre><code>CREATE TABLE TEST ( MACHINE_ID, \"DATE\" ) AS\n          SELECT 1, TIMESTAMP '2015-07-07 12:05:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 12:10:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 12:15:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 12:35:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 12:40:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 12:45:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 12:50:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 13:05:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 13:10:00' FROM DUAL\nUNION ALL SELECT 1, TIMESTAMP '2015-07-07 13:15:00' FROM DUAL\nUNION ALL SELECT 2, TIMESTAMP '2015-07-07 12:35:00' FROM DUAL\nUNION ALL SELECT 2, TIMESTAMP '2015-07-07 12:40:00' FROM DUAL\nUNION ALL SELECT 2, TIMESTAMP '2015-07-07 12:45:00' FROM DUAL\nUNION ALL SELECT 2, TIMESTAMP '2015-07-07 13:00:00' FROM DUAL\nUNION ALL SELECT 2, TIMESTAMP '2015-07-07 13:05:00' FROM DUAL\nUNION ALL SELECT 2, TIMESTAMP '2015-07-07 13:10:00' FROM DUAL\nUNION ALL SELECT 2, TIMESTAMP '2015-07-07 13:15:00' FROM DUAL;\n<\/code><\/pre>\n<p><strong>Query 1<\/strong>:<\/p>\n<pre><code>WITH changes AS (\n  SELECT MACHINE_ID,\n         \"DATE\",\n         CASE WHEN LAG( \"DATE\" ) OVER ( PARTITION BY MACHINE_ID ORDER BY \"DATE\" ) + INTERVAL '5' MINUTE = \"DATE\" THEN 0 ELSE 1 END AS has_changed_group\n  FROM   TEST\n), grps AS (\n  SELECT MACHINE_ID,\n         \"DATE\",\n         SUM( has_changed_group ) OVER ( PARTITION BY MACHINE_ID ORDER BY \"DATE\" ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) AS grp\n  FROM   changes\n)\nSELECT MACHINE_ID,\n       TO_CHAR( MIN( \"DATE\" ), 'YYYY-MM-DD HH24:MI:SS' ) AS shutdown_start,\n       TO_CHAR( MAX( \"DATE\" ), 'YYYY-MM-DD HH24:MI:SS' ) AS shutdown_end,\n       TO_CHAR( MAX( \"DATE\" ) - MIN( \"DATE\" ) + INTERVAL '5' MINUTE ) AS shutdown_duration\nFROM   grps\nGROUP BY MACHINE_ID, grp\nORDER BY 1,2\n<\/code><\/pre>\n<p><strong><a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/sqlfiddle.com\/#!4\/5be04\/5\/0\">Results<\/a><\/strong>:<\/p>\n<pre><code>| MACHINE_ID |      SHUTDOWN_START |        SHUTDOWN_END |             SHUTDOWN_DURATION |\n|------------|---------------------|---------------------|-------------------------------|\n|          1 | 2015-07-07 12:05:00 | 2015-07-07 12:15:00 | +000000000 00:15:00.000000000 |\n|          1 | 2015-07-07 12:35:00 | 2015-07-07 12:50:00 | +000000000 00:20:00.000000000 |\n|          1 | 2015-07-07 13:05:00 | 2015-07-07 13:15:00 | +000000000 00:15:00.000000000 |\n|          2 | 2015-07-07 12:35:00 | 2015-07-07 12:45:00 | +000000000 00:15:00.000000000 |\n|          2 | 2015-07-07 13:00:00 | 2015-07-07 13:15:00 | +000000000 00:20:00.000000000 |\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">3<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved SQL grouping on time interval <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] WITH changes AS ( SELECT &#8220;DATE&#8221;, CASE WHEN LAG( &#8220;DATE&#8221; ) OVER ( ORDER BY &#8220;DATE&#8221; ) + INTERVAL &#8216;5&#8217; MINUTE = &#8220;DATE&#8221; THEN 0 ELSE 1 END AS has_changed_group FROM TEST ), grps AS ( SELECT &#8220;DATE&#8221;, SUM( has_changed_group ) OVER ( ORDER BY &#8220;DATE&#8221; ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) &#8230; <a title=\"[Solved] SQL grouping on time interval\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-sql-grouping-on-time-interval\/\" aria-label=\"More on [Solved] SQL grouping on time interval\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[838,341],"class_list":["post-18615","post","type-post","status-publish","format-standard","hentry","category-solved","tag-oracle","tag-sql"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] SQL grouping on time interval - JassWeb<\/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:\/\/jassweb.com\/solved\/solved-sql-grouping-on-time-interval\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] SQL grouping on time interval - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] WITH changes AS ( SELECT &quot;DATE&quot;, CASE WHEN LAG( &quot;DATE&quot; 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