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2 I NHALTSVERZEICHNIS Oracle 9i - SQL 1 Einführung Voraussetzungen und Ziele Aufbau und Konventionen Entwicklung der Datenbanken Datenbankmodelle Hierarchische Datenbanken Netzwerkdatenbanken Relationale Datenbanken Objektorientierte Datenbanken Objektrelationale Datenbanken Einordnung von Oracle 9i Aufbau und Organisation einer Datenbank Ebenen-Modell Datenbankmanagementsystem (DBMS) Komponenten des DBMS Oracle 9i Schnellübersicht Der Datenbankentwurf Einführung Der Datenbank-Lebenszyklus Der Datenbankentwurf Die Entwurfsphasen Abstraktionskonzepte Das Entity-Relationship-Modell Elemente und grafische Darstellung des ER-Modells Datenbankentwurf mit dem ER-Modell Übung Das relationale Datenmodell Begriffe aus dem Bereich relationaler Datenbanken Relation Schlüssel Transformation des ER-Modells in ein relationales Modell Normalisierung des Datenbankschemas Probleme beim Ändern, Einfügen und Löschen von Datensätzen (Anomalien) Abhängigkeiten Der Normalisierungsprozess Normalform (1NF) Normalform (2NF) Normalform (3NF) Weitere Normalformen Theorie relationaler Sprachen Schnellübersicht Übung SQL und SQL*Plus Die Datenbankabfragesprache SQL SQL*Plus Schnellübersicht Übung Daten abfragen und sortieren Daten abfragen Einführung Die Anweisung SELECT verwenden Ermittlung der Struktur einer Tabelle Besondere Möglichkeit bei der Datenausgabe Bedingungen definieren Einführung Vergleichsoperatoren Bereichsprüfung Elementprüfung Mustervergleich Test auf Nullwerte Logische Operatoren Die Wertigkeit der einzelnen Operatoren Sortieren von Abfrageergebnissen Schnellübersicht Übung Einfache Funktionen bei Datenabfragen verwenden Einführung Zeichenkettenfunktionen Numerische Funktionen Datumsfunktionen Typumwandlungsfunktionen Allgemeine Funktionen Bedingungsprüfungen mit einfachen Funktionen Schnellübersicht Übung Daten gruppieren und zusammenfassen Aggregatfunktionen Abfrageergebnisse gruppieren Schnellübersicht Übung... 93

3 Inhaltsverzeichnis I 8 Daten aus mehreren Tabellen abfragen Tabellen verknüpfen Einfaches Verknüpfen von Tabellen Tabellen verknüpfen mit JOIN Zwei Tabellen vereinigen Schnitt- und Differenzmengen Schnellübersicht Übung Unterabfragen Verwendung von Unterabfragen Unterabfragen, die einen Wert liefern Unterabfragen, die mehrere Werte liefern Schnellübersicht Übung Tabellen erstellen und verwalten Tabellenarten Tabellen erstellen Datentypen Integritätsregeln für Tabellen - Constraints Tabellen bearbeiten Schnellübersicht Übung Daten manipulieren Daten einfügen Daten aktualisieren Daten integrieren Daten löschen Schnellübersicht Übung Transaktionen steuern Konsistente Datenbestände und Transaktionen Transaktionen abschließen Transaktionen kontrollieren Transaktionen zurücksetzen Schnellübersicht Übung Weitere Objekte Sichten Indizes Sequenzen Synonyme Schnellübersicht Übung Formatierte Berichte erzeugen SQL*Plus anpassen Formatbefehle Skripte für Berichte erstellen Schnellübersicht Übung Zugriffe verwalten Sicherheitskonzepte Privilegien Rollen Benutzer erstellen, verwalten und löschen Schnellübersicht Übung A.1 Installation der Datenbanksoftware A.2 Deinstallation der Datenbank- Software Stichwortverzeichnis...184

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