This paper designed and implemented TMOM (Telematics Moving Object Main Memory DBMS) to meet efficiently the requirements that telematics services should be provided in real-time. TMOM follows the spatial data model of OpenGIS "Simple Features Specification for SQL", and provides spatial, spatio-...
SQL-like (but object based) query language - familiar to most developers. Friendly API JPA is very simple, except for mapping, which is irrelevant to ObjectDB. Persistence is set using JPA/JDO annotations (e.g. @Entity, @Id, @Index). Transparent activation (no activation depth) - ...
Regardless whether the underlying database model follows the object-oriented, the rela tional or the object-relational paradigm, a key feature of any DBMS product is content based access to data sets. On the one hand this feature provides user-friendly query interfaces based on predicates to ...
Features of an ODBMS In their influential paper, The Object-Oriented Database Manifesto, Malcolm Atkinson and others define an OODBMS as follows: An object-oriented database system must satisfy two criteria: it should be a DBMS, and it should be an object-oriented system, i.e., to the ext...
dbms_output.put_line(emp.birthdate); end; -- 更新行对象数据,如果根据对象属性更新数据时必须定义对象别名 eg; update emp_tab p set p.birthdate=to_date('2000-1-23',yyyy-mm-dd) where p.name=&name; -- 删除行对象类型数据是如果根据对象属性删除数据 ,则删除时必须定义别名 ...
Based on similarity relationship that is originally used in the fuzzy relational databases [44], George et al. [105] use the range of attribute values to model the set of allowed values for an attribute of a given class. Then the inclusion of the actual attribute values of the given ...
These algebras can be inserted in any data model iftheir designs are based on available standards such as Open Geospatial Consortium that provides acommon model for existing DBMS's. In this paper, we focus on extending a spatial data model forconstrained moving objects. Static and moving ...
* Not-mappable concepts: not all of the concepts defined in the conceptual model can be mapped directly onto the object-relational model (e.g. Model-driven development of content-based image retrieval systems This book examines all of the major database models, including hierarchical, network, ...
Object-oriented DBMS Object-oriented design Object-Oriented Design and Development Object-Oriented Design Method Object-Oriented Design with Assemblies Object-Oriented Development Object-Oriented Distributed Computing Environment Object-Oriented Domain Analysis ...
OwnershipBasedAccessControlClass PathConnectivityItemClass PlugInWorkspaceFactoryClass PntClass QueryDefClass QueryFilterClass QueryTableNameClass RangeDomainClass RasterBandNameClass RasterCatalogClass RasterCatalogClassDescriptionClass RasterCatalogHelperClass RasterDatasetNameClass RasterDefClass RasterStorageDefClass ...