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Relationale Datenbanken

anna.vonflue

XML / XSD

Description

Block 1 - Lectures 1, 2

Mind Map by anna.vonflue, updated more than 1 year ago

	Created by anna.vonflue over 11 years ago

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Resource summary

XML / XSD

XML
1. Wohlgeformt
  1. Alle öffnenden Tags haben einen schlissenden Tag
  2. Elemente sind nebeneinander oder ineinander, aber nie überlappend
  3. Es gibt ein <root>-Element
  4. Tags, Attribute & Inhalte entsprechen den Def. im Schema ('valid')
2. Element
  1. Values
  2. Attributes
  3. Children
3. Hierarchisches Datenmodel
  1. Vorteile
  2. Nachteile
4. Vorteile
XSD
1. Def:
  1. = XML Schema Definition
  2. XSD ist ein Model, das in XML geschrieben wird
  3. Es spezifiziert...
    1. das Root-Element
    2. Element-Namen, Attribute & Werte
  4. Ermöglicht die Spez von Referenzen
2. Complex Elements
  1. empty
  2. Element hat Elemente
  3. Element hat Text
  4. Element hat Elemente & Text
3. Restrictions
  1. Integer Range
  2. Value in Set
  3. String length
4. Indicators
  1. Order indicators:
    1. All
      1. any order, each must occur exactly once
    2. Choice
      1. one of them must occur
    3. Sequence
      1. all must occur in specific order

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