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<h3>mysql</h3>
</section>
<section>
mysql ist eine „relationale Datenbank”
<p><cite> Relationale Datenbanken versuchen die Realität in einem Datenmodell abzubilden.</cite>
<ul>
<li>Jede Zeile einer Tabelle ist ein Datensatz</li>
<li>Jede Zeile ( Tupel ) besteht aus Attributen ( die Spalten )</li>
<li>Über Primärschlüssel werden Beziehungen hergestellt</li>
<li>Eine Datenbank kann viele Tabellen beinhalten</li>
</ul>
<img src="img/relationales_datenbankmodell_beispiel.jpg">
<p><small style="font-size:.4em">Quelle: http://www.datenbanken-verstehen.de/datenbank-grundlagen/datenbankmodell/relationales-datenbankmodell/</small>
</section>
<section>
<h4>Normalisierung</h4>
Aufteilung der Attribute (Spalten) in mehrere Relationen ( Tabellen ), so dass eine Form ohne Redundanzen entsteht.
</section>
<section>
<img src="img/Aufspaltung_einer_Tabelle_in_zwei_(Beispiel).svg">
</section>
<section>
<img src="img/Wp_Normal_1_301208_165800.JPG">
</section>
<section>
Verbindung aufnehmen:
<pre><code class="bash">~$ sudo mysql
......@@ -168,17 +195,6 @@ Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0</code></pre>
</section>
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<li class="fragment ">LAMP</li>
<li class="fragment ">Multimedia</li>
<li class="fragment ">Gimp</li>
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