{"id":378,"date":"2025-05-02T08:48:42","date_gmt":"2025-05-02T05:48:42","guid":{"rendered":"https:\/\/adriportfoolio6.wordpress.com\/?page_id=378"},"modified":"2025-05-02T08:48:42","modified_gmt":"2025-05-02T05:48:42","slug":"ab-projekteerimine","status":"publish","type":"page","link":"https:\/\/adrianapikaljov24.thkit.ee\/wp\/eng\/ab-projekteerimine\/","title":{"rendered":"tabeli normaliseerimine"},"content":{"rendered":"\n<p> <\/p>\n\n\n\n<p>normaliseerimine-andmebaasi andmete korrastamine<\/p>\n\n\n\n<p>otsime tabelites-<\/p>\n\n\n\n<p>&#8211;kordused<\/p>\n\n\n\n<p>&#8211;vastuolud<\/p>\n\n\n\n<p><strong>1 NormaalKuju (1NF)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>tabeli atribuudid on unikaalse nimega<\/li>\n\n\n\n<li>igas veerus on ainult \u00fche t\u00fc\u00fcbi andmed<\/li>\n\n\n\n<li>igal tabelil on primaarv\u00f5ti<\/li>\n\n\n\n<li>Igas lahtris on ainult \u00fchte v\u00e4\u00e4rtust, see t\u00e4hendab kui opilasel on kaks mobiilinumbrit, siis ei tohi neid sisestada \u00fche lahtrisse &#8211; on vaja luua eraldi tabeli.<\/li>\n<\/ul>\n\n\n\n<p><strong>2 NormaalKuju (2NF)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>t\u00e4idetud 1NF <\/li>\n\n\n\n<li>luuakse eraldi tabeleid mis on seotud primaav\u00f5tmega(v\u00f5\u00f5rv\u00f5ti, v\u00e4line v\u00f5ti)<\/li>\n<\/ul>\n\n\n\n<p><strong><strong>3 NormaalKuju (3NF)<\/strong><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u00e4idetud 1NF, 2NF<\/li>\n\n\n\n<li>on vaja kustutada need veerud, mis ei ole otse seotud primaarvtmega.<\/li>\n\n\n\n<li>N\u00e4iteks, kui tabelis opilane on veerg keskmine_hinne, siis keskmine_hinne ei ole seotud primaarv\u00f5tmega<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>normaliseerimine-andmebaasi andmete korrastamine otsime tabelites- &#8211;kordused &#8211;vastuolud 1 NormaalKuju (1NF) 2 NormaalKuju (2NF) 3 NormaalKuju (3NF)<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-with-title","meta":{"footnotes":""},"class_list":["post-378","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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