{"id":14226,"date":"2022-10-06T23:39:29","date_gmt":"2022-10-06T18:09:29","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-generate-month-data-series-with-null-months-included\/"},"modified":"2022-10-06T23:39:29","modified_gmt":"2022-10-06T18:09:29","slug":"solved-generate-month-data-series-with-null-months-included","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-generate-month-data-series-with-null-months-included\/","title":{"rendered":"[Solved] Generate month data series with null months included?"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-65281045\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"65281045\" data-parentid=\"65280988\" 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<p>You can generate all starts of months with <code>generate_series()<\/code>, then bring the table with a <code>left join<\/code>:<\/p>\n<pre><code>select \n    to_char(d.start_date, 'mon') as month,\n    extract(month from d.start_date) as month_num,\n    sum(cost_planned) filter (where t.aasm_state in ('open', 'planned' ) )  as planned,\n    sum(cost_actual)  filter (where t.aasm_state=\"closed\") as actual\nfrom generate_series('2020-01-01'::date, '2020-12-01'::date, '1 month') d(start_date)\nleft join activity_tasks t\n    on t.start_date &gt;= d.start_date and t.start_date &lt; d.start_date + '1 month'::interval\ngroup by start_date\norder by start_date\n<\/code><\/pre>\n<p>You can easily change the arguments of <code>generate_series()<\/code> to accomodate a different fiscal year.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">6<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Generate month data series with null months included? <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] You can generate all starts of months with generate_series(), then bring the table with a left join: select to_char(d.start_date, &#8216;mon&#8217;) as month, extract(month from d.start_date) as month_num, sum(cost_planned) filter (where t.aasm_state in (&#8216;open&#8217;, &#8216;planned&#8217; ) ) as planned, sum(cost_actual) filter (where t.aasm_state=&#8221;closed&#8221;) as actual from generate_series(&#8216;2020-01-01&#8217;::date, &#8216;2020-12-01&#8217;::date, &#8216;1 month&#8217;) d(start_date) left join activity_tasks t &#8230; <a title=\"[Solved] Generate month data series with null months included?\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-generate-month-data-series-with-null-months-included\/\" aria-label=\"More on [Solved] Generate month data series with null months included?\">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":[3741,783,623,341],"class_list":["post-14226","post","type-post","status-publish","format-standard","hentry","category-solved","tag-date-arithmetic","tag-datetime","tag-postgresql","tag-sql"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Generate month data series with null months included? - 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-generate-month-data-series-with-null-months-included\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Generate month data series with null months included? - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You can generate all starts of months with generate_series(), then bring the table with a left join: select to_char(d.start_date, &#039;mon&#039;) as month, extract(month from d.start_date) as month_num, sum(cost_planned) filter (where t.aasm_state in (&#039;open&#039;, &#039;planned&#039; ) ) as planned, sum(cost_actual) filter (where t.aasm_state=&quot;closed&quot;) as actual from generate_series(&#039;2020-01-01&#039;::date, &#039;2020-12-01&#039;::date, &#039;1 month&#039;) d(start_date) left join activity_tasks t ... 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