XQuery tuturu

Domin kai fahimtar XQuery, an kai fahimtar da cewa XQuery na da alama ga XML, kamar SQL na da alama ga bazara na tsakiyar hanyar yanar gizo.

XQuery an kai yar da domin nazarin data na XML - kuma yana da alama ga kowane data na iya yin amfani da XML, kuma yana da alama ga dukiyoyin bazara na tsakiyar hanyar yanar gizo.

Domin kai kai karatun shi, ka fi iya yin nazarin kwararrun daidai:

Domin kai kai karatun dukiya na kai tsaye, domin ka fi iya yin nazarin kwararrun daidai:

  • HTML / XHTML
  • XML / XML namespace
  • XPath

Domin kai kai karatun shi kafin, domin kai kai karatun shi a cikin Labari na farko domin yin nazarin shirin

Kwani XQuery shine?

  • XQuery shine harsa domin nazarin data na XML
  • XQuery ya kaiyar da amfani na XML da yana da alama kamar SQL ya kaiyar da bazara na tsakiyar hanyar yanar gizo.
  • XQuery ya kaiyar da XPath expression
  • XQuery za a iya amfani dashi a kaiyar da kowane injin bazara na tsakiyar hanyar yanar gizo (IBM, Oracle, Microsoft kuma sauransu).
  • XQuery shine stanadadi W3C

XQuery da nazarin XML

XQuery shine harsa domin yin nazarin da kuma yin watsi da abubuwan da za a iya samar da su a cikin dakiyoyin XML.

Hakan ne misali na XQuery da ya iya yin hanyar watsi da sadarwa na matsayi na haraji:

domin yin nazarin gidaje na CD da ke cikin XML dakiyoyin cd_catalog.xml da kuma yin kama ga gidaje da zai iya kaiwa 10 dollar.

XQuery da XPath

XQuery 1.0 da XPath 2.0 suna samar da data model daidai, kuma suna da kwararrun da kuma al'umuror daidai. Idan a ka kai karatun XPath, ba za a da su duka ba domin yin karatun XQuery.

domin ka fi iya yin nazarin XQuery a cikinTuturu XPathdomin ka fi iya yin nazarin XPath

Amfani XQuery - misali

XQuery za a iya amfani dashi:

  • domin yin bayanai domin za a samar da shi a cikin sabonin sararin yanar gizo
  • domin samar labari wanda zai iya yin watsi
  • domin gudanar da XML data zuwa XHTML
  • Domin samun bayanai a yi nazarin dakiyoyin yanar gizo

XQuery shine stanadadi W3C

XQuery ya'ya kawo kama W3C stanadadi, wanda ya kuma hada da XML, Namespaces, XSLT, XPath kuma XML Schema.

XQuery 1.0 an dade a 23 ga Janairu 2007 a matsayin W3C da ke kiyayya.

Don samun kowane bayanin kowane game da arewarci W3C XQuery, ka kiyayya ka bincike <Tuturu W3C》。