Organization of multi-access in databases

A particular, but important problem of freeing database memory in multi-access conditions is considered. A number of solutions to this problem are proposed and their advantages and disadvantages are noted. Three methods of organizing work with free space are considered. The first method assumes two...

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Main Author: Kolyeva Natalya
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/46/e3sconf_wfces2021_01006.pdf
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author Kolyeva Natalya
author_facet Kolyeva Natalya
author_sort Kolyeva Natalya
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description A particular, but important problem of freeing database memory in multi-access conditions is considered. A number of solutions to this problem are proposed and their advantages and disadvantages are noted. Three methods of organizing work with free space are considered. The first method assumes two additional modes of capturing pages: “Joint deletion” and “deletion”. In the second method, the pages after the last tuple have been deleted are inserted at the end of the free list. The third method involves the actual presentation of the freed pages of the relationship to the free memory pool of the segment and is postponed until the relationship is reorganized.
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spelling doaj.art-564d632391c4465aadec0f3e4352f5af2022-12-21T20:09:06ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012700100610.1051/e3sconf/202127001006e3sconf_wfces2021_01006Organization of multi-access in databasesKolyeva NatalyaA particular, but important problem of freeing database memory in multi-access conditions is considered. A number of solutions to this problem are proposed and their advantages and disadvantages are noted. Three methods of organizing work with free space are considered. The first method assumes two additional modes of capturing pages: “Joint deletion” and “deletion”. In the second method, the pages after the last tuple have been deleted are inserted at the end of the free list. The third method involves the actual presentation of the freed pages of the relationship to the free memory pool of the segment and is postponed until the relationship is reorganized.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/46/e3sconf_wfces2021_01006.pdf
spellingShingle Kolyeva Natalya
Organization of multi-access in databases
E3S Web of Conferences
title Organization of multi-access in databases
title_full Organization of multi-access in databases
title_fullStr Organization of multi-access in databases
title_full_unstemmed Organization of multi-access in databases
title_short Organization of multi-access in databases
title_sort organization of multi access in databases
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/46/e3sconf_wfces2021_01006.pdf
work_keys_str_mv AT kolyevanatalya organizationofmultiaccessindatabases