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Proceedings 14th International Conference on Data Engineering最新文献

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Messaging/queuing in Oracle8/sup TM/ Oracle8/sup TM/中的消息传递/队列
Proceedings 14th International Conference on Data Engineering Pub Date : 1998-02-23 DOI: 10.1109/ICDE.1998.655758
D. Gawlick
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引用次数: 1
Parallelizing loops in database programming languages 数据库编程语言中的并行循环
Proceedings 14th International Conference on Data Engineering Pub Date : 1998-02-23 DOI: 10.1109/ICDE.1998.655762
D. Lieuwen
{"title":"Parallelizing loops in database programming languages","authors":"D. Lieuwen","doi":"10.1109/ICDE.1998.655762","DOIUrl":"https://doi.org/10.1109/ICDE.1998.655762","url":null,"abstract":"Database programming languages (DBPLs), fourth generation languages (4GLs) and embedded SQL all include the ability to iterate sequentially through a set/relation. Nested iterators can be used to express joins. Without program analysis, such joins must be evaluated using a tuple-at-a-time join algorithm at a central site, otherwise program semantics may be violated. This paper's analysis often allows parallel join algorithms to be used. Also, this paper's compile-time optimizations can produce better parallel code than a straightforward parallelization of the nested iterators. The transformations allow the compiler to identify parallelization opportunities that it could not detect in the original code. These techniques are important for aiding the migration from hand-optimized code on a sequential machine to system-optimized code on a parallel machine. Without such rewrites, moving to a parallel system may produce only meager performance improvements when porting legacy systems.","PeriodicalId":264926,"journal":{"name":"Proceedings 14th International Conference on Data Engineering","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114925770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Virtual database technology 虚拟数据库技术
Proceedings 14th International Conference on Data Engineering Pub Date : 1997-12-01 DOI: 10.1109/ICDE.1998.655791
A. Gupta, Venky Harinarayan, A. Rajaraman
{"title":"Virtual database technology","authors":"A. Gupta, Venky Harinarayan, A. Rajaraman","doi":"10.1109/ICDE.1998.655791","DOIUrl":"https://doi.org/10.1109/ICDE.1998.655791","url":null,"abstract":"Virtual database (VDB) technology makes external data behave as an extension of an enterprise's relational database (RDBMS) system. VDB technology enables the rapid deployment of applications with at least one of the following characteristics: large numbers of data sources; data sources that are autonomous (i.e. there is no centralized control); or data sources that can have a mixture of structured and unstructured data. The World Wide Web and most intranets have all of these characteristics and can thus benefit from VDB technology.","PeriodicalId":264926,"journal":{"name":"Proceedings 14th International Conference on Data Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127369244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 44
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