Abstract
DQS is a multidatabase system integrating heterogeneous distributed databases in a SNA network of IBM mainframes. It is a relational system with SQL implemented as the data language. DQS architecture and software organization are presented. Principal implementation problems, such as distributed query processing and optimization are discussed.
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Belcastro, V. et al. (1988). An overview of the distributed query system DQS. In: Schmidt, J.W., Ceri, S., Missikoff, M. (eds) Advances in Database Technology—EDBT '88. EDBT 1988. Lecture Notes in Computer Science, vol 303. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-19074-0_53
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DOI: https://doi.org/10.1007/3-540-19074-0_53
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