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Time index access structure for temporal databases having concurrent multiple versions 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06F-015/40
출원번호 US-0564881 (1990-08-09)
발명자 / 주소
  • Elmasri Ramez A. (Houston TX) Wuu Tzyh-Jain G. (Manalapan NJ)
출원인 / 주소
  • Bell Communications Research, Inc. (Livingston NJ 02)
인용정보 피인용 횟수 : 143  인용 특허 : 0

초록 ▼

A time index for temporal databases is provided which enables the retrieval of database object versions that are valid during specified time periods. Unlike prior access and retrieval structures, the present index is based on objects whose search values are time intervals rather than time points. A

대표청구항 ▼

A computer-based temporal database management system including a time index which comprises: a) an ordered series of indexing time points defining time intervals during which at least one of a plurality of concurrent object version in said database is valid; and b) associated with each indexing poin

이 특허를 인용한 특허 (143)

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