{"id":17,"date":"2018-02-07T12:37:55","date_gmt":"2018-02-07T12:37:55","guid":{"rendered":"http:\/\/mein-it-wissen.net\/?p=17"},"modified":"2018-02-07T12:37:55","modified_gmt":"2018-02-07T12:37:55","slug":"wochen-nummer-in-sql-abfrage","status":"publish","type":"post","link":"https:\/\/mein-it-wissen.net\/?p=17","title":{"rendered":"Wochen-Nummer in SQL-Abfrage"},"content":{"rendered":"<p>In Abh\u00e4ngigkeit vom Format innerhalb der TO_CHAR Funktion kann es sein,<\/p>\n<p>dass f\u00fcr den 31.12.2017 die 52 oder die 53 als Kalenderwoche geliefert wird.<\/p>\n<p>Z.B.:<\/p>\n<p>select to_char(TO_DATE(&#8218;31.12.2017&#8216;, &#8218;dd.mm.yyyy&#8216;), &#8218;IW&#8216;) from DUAL; &#8211;52<\/p>\n<p>select to_char(TO_DATE(&#8218;31.12.2017&#8216;, &#8218;dd.mm.yyyy&#8216;), &#8218;WW&#8216;) from DUAL; &#8211;53<\/p>\n<p>Die erste Variante entspricht dem ISO 8601-Standard.<\/p>\n<p>Oracle Dokumentation:<\/p>\n<p>https:\/\/docs.oracle.com\/cloud\/latest\/db112\/SQLRF\/sql_elements004.htm#SQLRF00211<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Abh\u00e4ngigkeit vom Format innerhalb der TO_CHAR Funktion kann es sein, dass f\u00fcr den 31.12.2017 die 52 oder die 53 als Kalenderwoche geliefert wird. Z.B.: select to_char(TO_DATE(&#8218;31.12.2017&#8216;, &#8218;dd.mm.yyyy&#8216;), &#8218;IW&#8216;) from DUAL; &#8211;52 select to_char(TO_DATE(&#8218;31.12.2017&#8216;, &#8218;dd.mm.yyyy&#8216;), &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,2,3],"tags":[],"class_list":["post-17","post","type-post","status-publish","format-standard","hentry","category-heute-gelernt","category-oracle","category-sql"],"_links":{"self":[{"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=\/wp\/v2\/posts\/17","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17"}],"version-history":[{"count":1,"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=\/wp\/v2\/posts\/17\/revisions"}],"predecessor-version":[{"id":18,"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=\/wp\/v2\/posts\/17\/revisions\/18"}],"wp:attachment":[{"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mein-it-wissen.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}