{"id":6707,"date":"2015-07-15T10:00:00","date_gmt":"2015-07-15T16:00:00","guid":{"rendered":"https:\/\/memberpress.com\/?p=6707"},"modified":"2017-09-20T12:37:32","modified_gmt":"2017-09-20T18:37:32","slug":"real-men-and-women-use-sql","status":"publish","type":"post","link":"https:\/\/memberpress.com\/de\/blog\/real-men-and-women-use-sql\/","title":{"rendered":"Echte M\u00e4nner und Frauen verwenden SQL"},"content":{"rendered":"<p>Ob Sie es glauben oder nicht, die \u00dcberschrift ist durchaus w\u00f6rtlich zu nehmen. Echte M\u00e4nner und Frauen verwenden tats\u00e4chlich SQL. Selbst wenn Sie sich dessen nicht bewusst sind, spielt SQL eine Rolle in Ihrem Leben. Im Stillen, hinter den Kulissen, liefert es die Informationen, die Sie brauchen, um den Tag zu \u00fcberstehen.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6a9cfe2a28508\" class=\"ez-toc-cssicon-toggle-label\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">WAS IST INNEN<\/p>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Umschalten auf<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" 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: #000000;color:#000000\" 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><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a9cfe2a28508\"  \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/memberpress.com\/de\/blog\/real-men-and-women-use-sql\/#W3school\" >W3Schule<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/memberpress.com\/de\/blog\/real-men-and-women-use-sql\/#Udemy\" >Udemy<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Es ist bedauerlich, dass SQL so wenig Anerkennung f\u00fcr all die Arbeit erh\u00e4lt, die es leistet. Aber heute werden wir das \u00e4ndern. Heute ist der Tag, an dem SQL die Anerkennung erh\u00e4lt, die es verdient.<\/p>\n<p>In this article, we\u2019re going to give you a brief history (really brief, I promise) of SQL and then we\u2019re going to jump right into how and where SQL is used. In case I spark an interest, I\u2019ll finish up by providing some resources where you can start learning more.<\/p>\n<h4>Eine kurze Geschichte von SQL<\/h4>\n<p>Depending who you\u2019re talking to, you may find SQL (Structured Query Language) referred to by it\u2019s actual letter names or possibly as \u201csequel\u201d. Originally a product of IBM, SQL came about in the 1970s as a result of a problem. IBM needed to find a way of communicating with and manipulating the information found in databases.<\/p>\n<p>Seit den 1970er Jahren hat sich SQL zur weltweiten Standardsprache f\u00fcr die Kommunikation mit relationalen Datenbanken entwickelt. Vor dem Aufkommen der relationalen Datenbanken st\u00fctzten wir uns haupts\u00e4chlich auf ein komplexeres Modell namens <a href=\"https:\/\/en.wikipedia.org\/wiki\/Hierarchical_database_model\" target=\"_blank\" rel=\"noopener\">hierarchisch<\/a>. I\u2019ve linked to that term because if we spend too much more time on this topic, I\u2019ll have broken my promise.<\/p>\n<p>Let\u2019s move on to some more useful\u00a0details.<\/p>\n<h4>Was ist eine Datenbank?<\/h4>\n<p>The simplest definition we can come up with is that a database is an organized collection of data. Imagine taking the name, address, phone number, and zip code of every person who lives in your city and dropping them into a large bucket. But we\u2019re going to be more specific about this process. Write the information for each person on a single piece of paper before dropping them into your bucket. Nice work, you now have a bucket that contains thousands of pieces of information.<\/p>\n<p>Sch\u00fctteln Sie nun Ihren Eimer und achten Sie darauf, dass Ihre Zettel gut vermischt sind. Dieser Eimer ist im Wesentlichen Ihre Datenbank, und sie ist der typischen Datenbank auf Ihrem Computer oder Smartphone nicht un\u00e4hnlich.<\/p>\n<p>You can see where we\u2019re going with this right? You\u2019ve now created a small problem. You have a bucket (database) that is full of useful information, but how do you get that information out of the bucket in an efficient manner so that it\u2019s usable?<\/p>\n<h4>Wie h\u00e4ngt SQL mit Ihrer Datenbank zusammen?<\/h4>\n<p>Stellen wir uns nun vor, Sie h\u00e4tten ein leeres Telefonbuch, das mit Ihrem Eimer verbunden ist, und blieben bei unserem Eimer mit Namen und Adressen. Wie bekommen Sie die Informationen aus Ihrem Bucket - der im Grunde ein einziges Durcheinander ist - in Ihr Telefonbuch in einer brauchbaren, lesbaren Form? SQL ist die Rettung.<\/p>\n<p>SQL is the language capable of communicating with your database. It does this by generating what is called a \u201cquery\u201d. For example, show the results for every person in my database who:<\/p>\n<ul>\n<li>Hat einen Nachnamen, der mit dem Buchstaben A beginnt<\/li>\n<li>Hat die Postleitzahl 785241<\/li>\n<\/ul>\n<p>All of a\u00a0sudden you\u2019re now able to begin extracting useful information from your database. You can essentially create any type of query you want and SQL will return the appropriate information to your phone book for you to see.<\/p>\n<p>Im Laufe der Zeit wird Ihre Datenbank wachsen und mehr Namen oder sogar zus\u00e4tzliche Informationen - wie das Haushaltseinkommen - enthalten. Sie k\u00f6nnen weiterhin SQL verwenden, um die ben\u00f6tigten Informationen zu \u00fcbermitteln und zu extrahieren. SQL wird die Informationen sogar f\u00fcr Sie in den Eimer legen.<\/p>\n<h4>Ein Beispiel aus der Praxis<\/h4>\n<p>Most of us will never find ourselves in a position where we\u2019re having to create SQL queries directly. But that doesn\u2019t mean you\u2019re not using a database or SQL. Thankfully, we have programs or apps that do all the heavy lifting\u00a0for us.<\/p>\n<p>The contact manager that you have on your computer is one such application. To make your life easier, the application has what is called a graphical user interface (GUI for short). When you look at your screen, this GUI is what you are seeing. If you were to click on the letter \u201cV\u201d, your application would send a request via SQL to your database saying \u201cI am requesting all of the entries that have a last name starting with the letter V\u201d.<\/p>\n<p>Wie von Zauberhand zeigt Ihr Kontaktmanager nun eine Liste aller Personen in Ihrer Datenbank mit dem entsprechenden Nachnamen an. Dies ist nat\u00fcrlich eine vereinfachte Version, aber ich denke, es macht den Prozess ein wenig leichter zu verstehen.<\/p>\n<p>Es gibt im Wesentlichen vier Aktionen, die Sie mit Ihrer GUI in Ihrer Datenbank durchf\u00fchren k\u00f6nnen. Diese sind:<\/p>\n<ol>\n<li><strong>\u00c4ndern Sie<\/strong> einen bestehenden Datenbankeintrag - die Adresse Ihres Freundes wurde ge\u00e4ndert.<\/li>\n<li><strong>einf\u00fcgen.<\/strong> ein neuer Eintrag in der Datenbank - Sie haben einen neuen Freund gewonnen.<\/li>\n<li><strong>entfernen<\/strong> an entry from the database \u2013 you\u2019ve unfriended someone.<\/li>\n<li><strong>Anfrage<\/strong> information from the database \u2013 you\u2019re trying to find the phone number for a specific friend.<\/li>\n<\/ol>\n<p>Obwohl sich Ihre Interaktionen auf diese vier Kategorien beschr\u00e4nken, haben Sie dennoch erstaunlich viele M\u00f6glichkeiten, die Daten zu manipulieren.<\/p>\n<h4>Wo k\u00f6nnen Sie mehr erfahren?<\/h4>\n<p>Obwohl SQL und Datenbankmanagement ein eher trockenes Thema zu sein scheinen, ist es f\u00fcr unser t\u00e4gliches Leben unerl\u00e4sslich. Ohne SQL k\u00f6nnten wir als Gesellschaft die Uhr wahrscheinlich um mindestens 40 Jahre zur\u00fcckdrehen. Richtig, zur\u00fcck in die Zeit, als es noch ein <a href=\"https:\/\/en.wikipedia.org\/wiki\/Rolodex\" target=\"_blank\" rel=\"noopener\">Rolodex<\/a>.<\/p>\n<p>Wenn dieser Beitrag Ihr Interesse an SQL geweckt hat, stehen Ihnen einige gro\u00dfartige Ressourcen zur Verf\u00fcgung, mit denen Sie mehr erfahren k\u00f6nnen.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"W3school\"><\/span><a href=\"http:\/\/www.w3schools.com\/sql\/default.asp\" target=\"_blank\" rel=\"noopener\">W3Schule<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-6986\" src=\"https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/W3Schools.png\" alt=\"W3Schulen\" width=\"740\" height=\"239\" srcset=\"https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/W3Schools.png 740w, https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/W3Schools-300x97.png 300w, https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/W3Schools-526x170.png 526w, https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/W3Schools-700x226.png 700w, https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/W3Schools-156x50.png 156w\" sizes=\"(max-width: 740px) 100vw, 740px\" \/><\/p>\n<p>Die meisten von uns haben sich an W3school gewandt, um Hilfe bei CSS und HTML zu erhalten. Zuf\u00e4lligerweise gibt es dort auch eine gro\u00dfartige Ressource zum Erlernen von SQL. Allerdings ist es vielleicht nicht die beste Ressource f\u00fcr Anf\u00e4nger. Sie ist ziemlich direkt und enth\u00e4lt keine Beispiele, die f\u00fcr Laien geeignet sind. Wenn Sie jemand sind, der visuell und auditiv lernt, ist unsere n\u00e4chste Quelle vielleicht besser geeignet.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Udemy\"><\/span><a href=\"https:\/\/www.udemy.com\/courses\/search\/?q=sql\" target=\"_blank\" rel=\"noopener\">Udemy<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-6989\" src=\"https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/Udemy.png\" alt=\"Udemy\" width=\"740\" height=\"325\" srcset=\"https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/Udemy.png 740w, https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/Udemy-300x132.png 300w, https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/Udemy-387x170.png 387w, https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/Udemy-700x307.png 700w, https:\/\/memberpress.com\/wp-content\/uploads\/2015\/07\/Udemy-156x69.png 156w\" sizes=\"(max-width: 740px) 100vw, 740px\" \/><\/p>\n<p>Udemy bietet einige hervorragende Kurse an, mit denen Sie Ihre SQL-Kenntnisse vertiefen k\u00f6nnen. Es gibt mehrere kostenlose Kurse, doch die qualitativ hochwertigeren sind mit einer geringen Geb\u00fchr verbunden. Wenn Sie ernsthaft daran interessiert sind, grundlegende SQL-Kenntnisse zu erwerben, sind Sie hier wahrscheinlich genau richtig.<\/p>\n<h4>Schlussfolgerung<\/h4>\n<p>Ich hoffe, Sie haben in diesem Beitrag eine grundlegende Einf\u00fchrung in die Bedeutung von SQL erhalten und erfahren, wie wichtig es f\u00fcr unser Leben ist. Wenn Sie nur ein paar Sekunden dar\u00fcber nachdenken, wird Ihnen klar, wie sehr wir jeden Tag auf Daten angewiesen sind.<\/p>\n<p>Learning to use and manipulate that data is an incredibly valuable skill so if we\u2019ve sparked an interest, take the time to learn more.<\/p>\n<p><strong>If you\u2019ve ever used an interface like <a href=\"https:\/\/www.mysql.com\/\" target=\"_blank\" rel=\"noopener\">MySQL<\/a>Bitte teilen Sie Ihre Erfahrungen in den Kommentaren mit.<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>Believe it or not, the headline is quite literal. Real men and women do in fact use SQL. Even if you\u2019re not aware of it, SQL plays a role in your life. Quietly hiding behind the scenes, delivering the information that you need to get through the\u00a0day. It\u2019s unfortunate that SQL gets so little credit [\u2026]<\/p>\n","protected":false},"author":2122,"featured_media":15176,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_strive_editorial_status":"not-started","_strive_copy_of":0,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"content-sidebar","_FSMCFIC_featured_image_caption":"","_FSMCFIC_featured_image_nocaption":"","_FSMCFIC_featured_image_hide":"","_strive_checklists":"\"\"","_strive_active_checklist":"62291e2bb2422","_strive_post_notes":"","footnotes":""},"categories":[120],"tags":[265,264],"class_list":["post-6707","post","type-post","status-publish","format-standard","has-post-thumbnail","category-content","tag-learning-resources","tag-sql","entry"],"acf":{"plans":["scale"],"is_featured":false,"download_source":"none","mothership_slug":"","download_url":""},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Learn how important SQL is to our daily lives. 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