作者: Barbara Catania , Giovanna Guerrini
DOI: 10.1007/978-3-319-61893-7_5
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摘要: From the late 1970s, database research community has devoted huge efforts in devising more and effective efficient solutions for processing queries against data. In this chapter, we retrace some of challenges that have been faced last 25 years to enable data be effectively efficiently queried how notions query themselves evolved during these five lusters.