数据库系统概念（杨冬青）实践习题答案
PracticeExercises1.1Thischapterhasdescribedseveralmajoradvantagesofadatabasesystem.Whataretwodisadvantages?Answer:Twodisadvantagesassociatedwithdatabasesystemsarelistedbelow.a.Setupofthedatabasesystemrequiresmoreknowledge,money,skills,andtime.b.Thecomplexityofthedatabasemayresultinpoorperfor
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