Document (#17215)

Author
Conrad, S.
Title
Föderierte Datenbanksysteme : Konzepte der Datenintegration
Imprint
Berlin : Springer
Year
1997
Pages
XI,335 S
Isbn
3-540-63176-3
Abstract
Dieses Lehrbuch gibt erstmals eine Gesamtdarstellung des Forschungs- und Entwicklungsbereichs Föderierte Datenbanksysteme. Ein zentrales Ziel dieser Systeme ist die Integration bestehender und bislang getrennt verwalteter Datenbestände, insbesondere heterogener Datenbanken. Dabei geht es um einen einheitlichen und transparenten Zugriff, der auch neue, systemübergreifende Anwendungen erlaubt, bei gleichzeitiger Erhaltung der Autonomie der ursprünglichen Systeme
RSWK
Föderiertes Datenbanksystem

Similar documents (content)

  1. Kleinschmidt, P.; Rank, C.: Relationale Datenbanksysteme : eine praktische Einführung (1997) 0.45
    0.45304987 = sum of:
      0.45304987 = product of:
        2.8315618 = sum of:
          0.09254547 = weight(abstract_txt:zugriff in 984) [ClassicSimilarity], result of:
            0.09254547 = score(doc=984,freq=1.0), product of:
              0.11488101 = queryWeight, product of:
                1.1529106 = boost
                6.444614 = idf(docFreq=190, maxDocs=44218)
                0.015461645 = queryNorm
              0.80557674 = fieldWeight in 984, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.444614 = idf(docFreq=190, maxDocs=44218)
                0.125 = fieldNorm(doc=984)
          0.914105 = weight(subject_txt:lehrbuch in 984) [ClassicSimilarity], result of:
            0.914105 = score(doc=984,freq=3.0), product of:
              0.17628726 = queryWeight, product of:
                1.4281769 = boost
                7.983315 = idf(docFreq=40, maxDocs=44218)
                0.015461645 = queryNorm
              5.185315 = fieldWeight in 984, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.983315 = idf(docFreq=40, maxDocs=44218)
                0.375 = fieldNorm(doc=984)
          0.13950813 = weight(abstract_txt:systeme in 984) [ClassicSimilarity], result of:
            0.13950813 = score(doc=984,freq=1.0), product of:
              0.19029227 = queryWeight, product of:
                2.0984426 = boost
                5.8650045 = idf(docFreq=340, maxDocs=44218)
                0.015461645 = queryNorm
              0.73312557 = fieldWeight in 984, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8650045 = idf(docFreq=340, maxDocs=44218)
                0.125 = fieldNorm(doc=984)
          1.6854032 = weight(title_txt:datenbanksysteme in 984) [ClassicSimilarity], result of:
            1.6854032 = score(doc=984,freq=1.0), product of:
              0.4346223 = queryWeight, product of:
                3.1713378 = boost
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.015461645 = queryNorm
              3.8778574 = fieldWeight in 984, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.4375 = fieldNorm(doc=984)
        0.16 = coord(4/25)
    
  2. Kleinschmidt, P.; Rank, C.: Relationale Datenbanksysteme : eine praktische Einführung (2001) 0.23
    0.23009482 = sum of:
      0.23009482 = product of:
        1.9174569 = sum of:
          0.09254547 = weight(abstract_txt:zugriff in 6137) [ClassicSimilarity], result of:
            0.09254547 = score(doc=6137,freq=1.0), product of:
              0.11488101 = queryWeight, product of:
                1.1529106 = boost
                6.444614 = idf(docFreq=190, maxDocs=44218)
                0.015461645 = queryNorm
              0.80557674 = fieldWeight in 6137, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.444614 = idf(docFreq=190, maxDocs=44218)
                0.125 = fieldNorm(doc=6137)
          0.13950813 = weight(abstract_txt:systeme in 6137) [ClassicSimilarity], result of:
            0.13950813 = score(doc=6137,freq=1.0), product of:
              0.19029227 = queryWeight, product of:
                2.0984426 = boost
                5.8650045 = idf(docFreq=340, maxDocs=44218)
                0.015461645 = queryNorm
              0.73312557 = fieldWeight in 6137, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8650045 = idf(docFreq=340, maxDocs=44218)
                0.125 = fieldNorm(doc=6137)
          1.6854032 = weight(title_txt:datenbanksysteme in 6137) [ClassicSimilarity], result of:
            1.6854032 = score(doc=6137,freq=1.0), product of:
              0.4346223 = queryWeight, product of:
                3.1713378 = boost
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.015461645 = queryNorm
              3.8778574 = fieldWeight in 6137, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.4375 = fieldNorm(doc=6137)
        0.12 = coord(3/25)
    
  3. Kießling, W.; Köstler, G.: Multimedia-Kurs Datenbanksysteme (1998) 0.16
    0.1624645 = sum of:
      0.1624645 = product of:
        2.0308063 = sum of:
          0.10463109 = weight(abstract_txt:systeme in 3076) [ClassicSimilarity], result of:
            0.10463109 = score(doc=3076,freq=1.0), product of:
              0.19029227 = queryWeight, product of:
                2.0984426 = boost
                5.8650045 = idf(docFreq=340, maxDocs=44218)
                0.015461645 = queryNorm
              0.54984415 = fieldWeight in 3076, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8650045 = idf(docFreq=340, maxDocs=44218)
                0.09375 = fieldNorm(doc=3076)
          1.9261751 = weight(title_txt:datenbanksysteme in 3076) [ClassicSimilarity], result of:
            1.9261751 = score(doc=3076,freq=1.0), product of:
              0.4346223 = queryWeight, product of:
                3.1713378 = boost
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.015461645 = queryNorm
              4.431837 = fieldWeight in 3076, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.5 = fieldNorm(doc=3076)
        0.08 = coord(2/25)
    
  4. Böcherer, W.; Kristen, H.; Maurer, A.; Schütte, C.-H.: Integration heterogener EDV-Systeme am Beispiel eines Katalogisierungs-, Recherche- und Informationssystems (1992) 0.16
    0.15717311 = sum of:
      0.15717311 = product of:
        0.654888 = sum of:
          0.06809179 = weight(abstract_txt:konzepte in 2397) [ClassicSimilarity], result of:
            0.06809179 = score(doc=2397,freq=1.0), product of:
              0.113422826 = queryWeight, product of:
                1.1455703 = boost
                6.4035826 = idf(docFreq=198, maxDocs=44218)
                0.015461645 = queryNorm
              0.60033584 = fieldWeight in 2397, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4035826 = idf(docFreq=198, maxDocs=44218)
                0.09375 = fieldNorm(doc=2397)
          0.0694091 = weight(abstract_txt:zugriff in 2397) [ClassicSimilarity], result of:
            0.0694091 = score(doc=2397,freq=1.0), product of:
              0.11488101 = queryWeight, product of:
                1.1529106 = boost
                6.444614 = idf(docFreq=190, maxDocs=44218)
                0.015461645 = queryNorm
              0.60418254 = fieldWeight in 2397, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.444614 = idf(docFreq=190, maxDocs=44218)
                0.09375 = fieldNorm(doc=2397)
          0.09368366 = weight(abstract_txt:erlaubt in 2397) [ClassicSimilarity], result of:
            0.09368366 = score(doc=2397,freq=1.0), product of:
              0.14030717 = queryWeight, product of:
                1.2741233 = boost
                7.122176 = idf(docFreq=96, maxDocs=44218)
                0.015461645 = queryNorm
              0.667704 = fieldWeight in 2397, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.122176 = idf(docFreq=96, maxDocs=44218)
                0.09375 = fieldNorm(doc=2397)
          0.13849345 = weight(abstract_txt:datenbestände in 2397) [ClassicSimilarity], result of:
            0.13849345 = score(doc=2397,freq=1.0), product of:
              0.1820777 = queryWeight, product of:
                1.4514427 = boost
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.015461645 = queryNorm
              0.7606282 = fieldWeight in 2397, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.09375 = fieldNorm(doc=2397)
          0.18057892 = weight(abstract_txt:heterogener in 2397) [ClassicSimilarity], result of:
            0.18057892 = score(doc=2397,freq=1.0), product of:
              0.21731114 = queryWeight, product of:
                1.5856689 = boost
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.015461645 = queryNorm
              0.83096945 = fieldWeight in 2397, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.09375 = fieldNorm(doc=2397)
          0.10463109 = weight(abstract_txt:systeme in 2397) [ClassicSimilarity], result of:
            0.10463109 = score(doc=2397,freq=1.0), product of:
              0.19029227 = queryWeight, product of:
                2.0984426 = boost
                5.8650045 = idf(docFreq=340, maxDocs=44218)
                0.015461645 = queryNorm
              0.54984415 = fieldWeight in 2397, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8650045 = idf(docFreq=340, maxDocs=44218)
                0.09375 = fieldNorm(doc=2397)
        0.24 = coord(6/25)
    
  5. Härder, T.; Rahm, E.: Datenbanksysteme : Konzepte und Techniken der Implementierung (1999) 0.12
    0.124649405 = sum of:
      0.124649405 = product of:
        1.5581176 = sum of:
          0.11348632 = weight(abstract_txt:konzepte in 94) [ClassicSimilarity], result of:
            0.11348632 = score(doc=94,freq=1.0), product of:
              0.113422826 = queryWeight, product of:
                1.1455703 = boost
                6.4035826 = idf(docFreq=198, maxDocs=44218)
                0.015461645 = queryNorm
              1.0005598 = fieldWeight in 94, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4035826 = idf(docFreq=198, maxDocs=44218)
                0.15625 = fieldNorm(doc=94)
          1.4446313 = weight(title_txt:datenbanksysteme in 94) [ClassicSimilarity], result of:
            1.4446313 = score(doc=94,freq=1.0), product of:
              0.4346223 = queryWeight, product of:
                3.1713378 = boost
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.015461645 = queryNorm
              3.3238778 = fieldWeight in 94, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.375 = fieldNorm(doc=94)
        0.08 = coord(2/25)