Diplombericht Master Thesis

Diplombericht
Master Thesis MAS-07-01.21
Inhaltsverzeichnis
1 Allgemeines......................................................................................................... 6
1.1 Dokument ........................................................................................................ 6
1.1.1 Zweck.......................................................................................................... 6
1.1.2 Umfang........................................................................................................ 6
1.1.3 Leserkreis.................................................................................................... 6
1.1.4 Übersicht..................................................................................................... 6
1.1.5 Begriffe und Definitionen ............................................................................. 6
1.1.6 Nomenklatur................................................................................................ 6
2 Projektübersicht.................................................................................................. 7
2.1 Allgemeine Beschreibung ................................................................................ 7
2.1.1 ETL Prozess................................................................................................ 7
2.1.2 Ladeprozess kleine Tabellen ....................................................................... 8
2.1.3 Ladeprozess grosser Tabellen ................................................................... 8
2.2 Problemstellung............................................................................................... 9
2.3 Projektziele...................................................................................................... 9
2.4 Mögliche Lösungen........................................................................................ 10
2.4.1 LogMiner (erste Vision) ............................................................................. 10
2.4.2 Timestamp / Change Key Column ............................................................. 11
2.4.3 Tabel differencing...................................................................................... 11
2.4.4 Oracle Change Data Capture .................................................................... 12
2.5 Entscheid....................................................................................................... 13
2.5.1 Erklärung zur Bewertung ........................................................................... 13
3 Analyse .............................................................................................................. 15
3.1 Change Data Capture.................................................................................... 15
3.1.1 Architektur ................................................................................................. 15
3.1.1.1 Publisher......................................................................................... 16
3.1.1.2 Source Tabelle................................................................................ 16
3.1.1.3 Change Source............................................................................... 16
3.1.1.4 Change Set..................................................................................... 16
3.1.1.5 Change Table ................................................................................. 16
3.1.1.6 Subscriber....................................................................................... 16
3.1.2 Change Data Capture Modus .................................................................... 17
3.2 Applikation..................................................................................................... 18
3.2.1 Pakete....................................................................................................... 18
3.2.2 Use Case Diagramm (Publish) .................................................................. 19
3.2.3 Übersicht Use Cases (Publish).................................................................. 20
3.2.4 Aktoren...................................................................................................... 20
3.2.5 Detailbeschreibung Use Cases (Publish)................................................... 21
3.2.5.1 Programm starten ........................................................................... 21
3.2.5.2 Login............................................................................................... 22
3.2.5.3 Destinationsystem konfigurieren ..................................................... 23
3.2.5.4 Change Source konfigurieren.......................................................... 24
3.2.5.5 Change Source löschen.................................................................. 26
3.2.5.6 Change Set konfigurieren ............................................................... 28
3.2.5.7 Change Set löschen........................................................................ 30
3.2.5.8 Changetabelle ändern..................................................................... 32
3.2.5.9 Changetabelle purgen..................................................................... 34
10.09.2009 Seite 3 von 80