{"id":166,"date":"2015-12-02T13:47:22","date_gmt":"2015-12-02T12:47:22","guid":{"rendered":"http:\/\/sciencebear.info\/public\/?p=166"},"modified":"2019-08-28T14:52:34","modified_gmt":"2019-08-28T13:52:34","slug":"crystal-reports-iso-wochennummern","status":"publish","type":"post","link":"https:\/\/sciencebear.info\/public\/2015\/crystal-reports-iso-wochennummern\/","title":{"rendered":"Crystal Reports &#8211; ISO-Wochennummern"},"content":{"rendered":"\n<p>(Kalender-)Wochennummern nach ISO-8601 aus Date-Feldern zu ermitteln ist in Crystal Reports (mindestens bei Versionen 2008 und XI) in Funktion DatePart() fehlerhaft implementiert.<\/p>\n\n\n\n<p><span style=\"line-height: 1.6471;\">Die folgenden Script-Fragmente k\u00f6nnen zur Abhilfe im Formelworkshop unter benutzerdefinierten Funktionen hinzugef\u00fcgt werden<\/span><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>Ermittlung der ISO-Wochennummer:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Function (optional DateVar d := CurrentDate)\nNumberVar week := DatePart(\"ww\", d, crMonday, crFirstFourDays);\n\/\/ Letzte Tage eines Jahres k\u00f6nnen zur ersten KW des Folgejahres geh\u00f6ren:\nif week = 53 and DatePart(\"ww\", cDate(year(d) + 1, 1, 1), crMonday, crFirstFourDays) = 1 then week := 1\n\n\/\/ CR errechnet fehlerhafte Werte f\u00fcr Januartage, die zur letzten Vorjahres-KW geh\u00f6ren:\nelse if week &gt; 53 then\n week := DatePart(\"ww\", cDate(year(d) - 1, 12, 31), crMonday, crFirstFourDays);\n\/\/ Variable week als Funktionsergebnis zur\u00fcckgeben\nweek;<\/pre>\n\n\n\n<p>Ermittlung des Jahres, zu dem die ISO Wochennummer geh\u00f6rt (etwa f\u00fcr einen Januartag, der zur 53. KW des Vorjahres z\u00e4hlt):<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Function (optional DateVar d := CurrentDate)\nNumberVar week := %Funktionsname_der_obigen_Nutzerfunktion%(d);\nif week = 1 and month(d) = 12 then\n year(d) + 1\nelse if week &gt; 10 and month(d) = 1 then\n year(d) - 1\nelse\n year(d);<\/pre>\n\n\n\n<p class=\"has-small-font-size\">Quelle: Aus einer Antwort auf der Q&amp;A-Plattform&nbsp;<a href=\"http:\/\/stackoverflow.com\/questions\/13701063\/correct-iso-week-numbering-in-crystal-reports-xi\/13701065#13701065\" target=\"_blank\" rel=\"noopener noreferrer\">StackOverflow<\/a>&nbsp;unter Lizenz cc&nbsp;by-sa 3.0 von Nutzer&nbsp;<a href=\"http:\/\/stackoverflow.com\/users\/909134\/lapplandscohan\" target=\"_blank\" rel=\"noopener noreferrer\">lapplandscohan<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>(Kalender-)Wochennummern nach ISO-8601 aus Date-Feldern zu ermitteln ist in Crystal Reports in DatePart() teils fehlerhaft implementiert.<\/p>\n<p>Diese Script-Fragmente k\u00f6nnen zur Abhilfe im Formelworkshop verwendet werden.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[13],"class_list":["post-166","post","type-post","status-publish","format-standard","hentry","category-tutorial","tag-crystal-reports"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Crystal Reports - ISO-Wochennummern &#8226; 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