{"id":719,"date":"2025-06-02T13:10:21","date_gmt":"2025-06-02T10:10:21","guid":{"rendered":"https:\/\/saotwo.wordpress.com\/?page_id=719"},"modified":"2025-06-02T13:10:21","modified_gmt":"2025-06-02T10:10:21","slug":"teema-9-andmebaas","status":"publish","type":"page","link":"https:\/\/illiablahun24.thkit.ee\/wp\/teema-9-andmebaas\/","title":{"rendered":"Teema 9: Andmebaas"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/illiablahun24.thkit.ee\/wp\/teema-9-andmebaas\/#Teoreetiline_osa_SQLite_Pythonis\" >Teoreetiline osa: SQLite Python&#8217;is<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/illiablahun24.thkit.ee\/wp\/teema-9-andmebaas\/#Mis_on_andmebaas\" >Mis on andmebaas?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/illiablahun24.thkit.ee\/wp\/teema-9-andmebaas\/#SQLite\" >SQLite<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/illiablahun24.thkit.ee\/wp\/teema-9-andmebaas\/#SQLite_ja_Python\" >SQLite ja Python<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/illiablahun24.thkit.ee\/wp\/teema-9-andmebaas\/#Peamised_tegevused_sqlite3_mooduliga\" >Peamised tegevused sqlite3 mooduliga:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/illiablahun24.thkit.ee\/wp\/teema-9-andmebaas\/#Naidis_too_SQLite_andmebaasiga_Pythonis\" >N\u00e4idis: t\u00f6\u00f6 SQLite andmebaasiga Pythonis<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Teoreetiline_osa_SQLite_Pythonis\"><\/span>Teoreetiline osa: SQLite Python&#8217;is<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mis_on_andmebaas\"><\/span>Mis on andmebaas?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Andmebaas on organiseeritud andmete kogum, mis v\u00f5imaldab andmeid turvaliselt salvestada, muuta ja p\u00e4rida.<\/li>\n\n\n\n<li>Andmebaasid on m\u00f5eldud suure hulga struktureeritud andmete efektiivseks haldamiseks.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SQLite\"><\/span>SQLite<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SQLite on kerge ja manustatav (embedded) relatsiooniline andmebaas.<\/li>\n\n\n\n<li>Ei vaja eraldi serverit, kogu andmebaas salvestatakse \u00fches failis.<\/li>\n\n\n\n<li>Sobib h\u00e4sti v\u00e4iksematele rakendustele ja arenduseks, aga ka paljudele seadmetele ja s\u00fcsteemidele.<\/li>\n\n\n\n<li>On tasuta ja avatud l\u00e4htekoodiga.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SQLite_ja_Python\"><\/span>SQLite ja Python<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pythonis saab SQLite\u2019ga t\u00f6\u00f6tamiseks kasutada sisseehitatud <code>sqlite3<\/code> moodulit.<\/li>\n\n\n\n<li>See moodul v\u00f5imaldab luua \u00fchendusi andmebaasiga, t\u00e4ita SQL-p\u00e4ringuid ja hallata andmeid.<\/li>\n\n\n\n<li>SQLite toetab standardseid SQL k\u00e4sklusi.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Peamised_tegevused_sqlite3_mooduliga\"><\/span>Peamised tegevused <code>sqlite3<\/code> mooduliga:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u00dchenduse loomine andmebaasiga<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>conn = sqlite3.connect('andmebaas.db')<\/code><\/li>\n\n\n\n<li>Kui andmebaasi fail puudub, siis see luuakse automaatselt.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Kursori loomine<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>cursor = conn.cursor()<\/code><\/li>\n\n\n\n<li>Kursori kaudu t\u00e4idetakse SQL-p\u00e4ringud.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>SQL-p\u00e4ringute t\u00e4itmine<\/strong>\n<ul class=\"wp-block-list\">\n<li>Tabeli loomine: <code>cursor.execute(\"CREATE TABLE ...\")<\/code><\/li>\n\n\n\n<li>Andmete lisamine: <code>cursor.execute(\"INSERT INTO ...\")<\/code><\/li>\n\n\n\n<li>Andmete p\u00e4rimine: <code>cursor.execute(\"SELECT ...\")<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Andmete salvestamine<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>conn.commit()<\/code> \u2014 muudatuste salvestamiseks andmebaasi.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u00dchenduse sulgemine<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>conn.close()<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Naidis_too_SQLite_andmebaasiga_Pythonis\"><\/span>N\u00e4idis: t\u00f6\u00f6 SQLite andmebaasiga Pythonis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\"><\/pre>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport sqlite3\n\n# \u00dchenduse loomine andmebaasi failiga (n\u00e4iteks &#039;andmebaas.db&#039;)\nconn = sqlite3.connect(&#039;andmebaas.db&#039;)\n\n# Kursori loomine\ncursor = conn.cursor()\n\n# Tabeli loomine (kui seda veel ei ole)\ncursor.execute(&#039;&#039;&#039;\n    CREATE TABLE IF NOT EXISTS kasutajad (\n        id INTEGER PRIMARY KEY AUTOINCREMENT,\n        nimi TEXT NOT NULL,\n        vanus INTEGER\n    )\n&#039;&#039;&#039;)\n\n# Andmete lisamine tabelisse\ncursor.execute(&quot;INSERT INTO kasutajad (nimi, vanus) VALUES (?, ?)&quot;, (&#039;Mari&#039;, 28))\ncursor.execute(&quot;INSERT INTO kasutajad (nimi, vanus) VALUES (?, ?)&quot;, (&#039;Jaan&#039;, 35))\n\n# Muudatuste salvestamine\nconn.commit()\n\n# Andmete p\u00e4rimine tabelist\ncursor.execute(&quot;SELECT * FROM kasutajad&quot;)\nandmed = cursor.fetchall()\n\n# Andmete kuvamine\nfor rida in andmed:\n    print(rida)\n\n# \u00dchenduse sulgemine\nconn.close()\n\n<\/pre><\/div>","protected":false},"excerpt":{"rendered":"<p>Teoreetiline osa: SQLite Python&#8217;is Mis on andmebaas? SQLite SQLite ja Python Peamised tegevused sqlite3 mooduliga: N\u00e4idis: t\u00f6\u00f6 SQLite andmebaasiga Pythonis<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-719","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Teema 9: Andmebaas - Illia Blahun portfoolio<\/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:\/\/illiablahun24.thkit.ee\/wp\/teema-9-andmebaas\/\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Teema 9: Andmebaas - Illia Blahun portfoolio\" \/>\n<meta property=\"og:description\" content=\"Teoreetiline osa: SQLite Python&#8217;is Mis on andmebaas? 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