学科分类
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1 个结果
  • 简介:Engineeringapplicationdomainsneeddatabasemanagementsystemstosupplythemwithagoodmeansofmodeling,ahighdataaccessefficiencyandalanguageinterfacewithstrongfunctionality.Thispaperpresentsasemantichypergraphmodelbasedonrelations,inordertoexpressmany-to-manyrelationsamongobjectsbelongingtodifferentsemanticclassesinengineeringapplications.Amanagementmechanismexpressedbythemodelandthebasicdataofengineeringdatabasesaremanagedinmainmemory.Especially,differentobjectsarelinkedbydifferentkindsofsemanticsdefinedbyusers,thereforethetableswap,therecordswapandsomeunnecessaryexaminationsarreducedandtheaccessefficiencyoftheengineeringdataisincreased.Clanguageinterfacethatincludessomegenericandspecialfunctionalityisproposedforcloserconnectionwithapplicationprograms.

  • 标签: 工程数据库 存储管理 语言接口