{"id":"https://openalex.org/W2019470304","doi":"https://doi.org/10.1002/scj.4690170202","title":"Data Abstraction Technique for Relational Database Query Processing","display_name":"Data Abstraction Technique for Relational Database Query Processing","publication_year":1986,"publication_date":"1986-01-01","ids":{"openalex":"https://openalex.org/W2019470304","doi":"https://doi.org/10.1002/scj.4690170202","mag":"2019470304"},"language":"en","primary_location":{"id":"doi:10.1002/scj.4690170202","is_oa":false,"landing_page_url":"https://doi.org/10.1002/scj.4690170202","pdf_url":null,"source":{"id":"https://openalex.org/S58208175","display_name":"Systems and Computers in Japan","issn_l":"0882-1666","issn":["0882-1666","1520-684X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Systems and Computers in Japan","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5074916567","display_name":"Takumi Ohtani","orcid":null},"institutions":[{"id":"https://openalex.org/I207399273","display_name":"Utsunomiya University","ror":"https://ror.org/05bx1gz93","country_code":"JP","type":"education","lineage":["https://openalex.org/I207399273"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Takumi Ohtani","raw_affiliation_strings":["Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321","institution_ids":["https://openalex.org/I207399273"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037498698","display_name":"Takanobu Baba","orcid":null},"institutions":[{"id":"https://openalex.org/I207399273","display_name":"Utsunomiya University","ror":"https://ror.org/05bx1gz93","country_code":"JP","type":"education","lineage":["https://openalex.org/I207399273"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takanobu Baba","raw_affiliation_strings":["Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321","institution_ids":["https://openalex.org/I207399273"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008088495","display_name":"Masayuki Inagawa","orcid":null},"institutions":[{"id":"https://openalex.org/I207399273","display_name":"Utsunomiya University","ror":"https://ror.org/05bx1gz93","country_code":"JP","type":"education","lineage":["https://openalex.org/I207399273"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masayuki Inagawa","raw_affiliation_strings":["Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321","institution_ids":["https://openalex.org/I207399273"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108563223","display_name":"Takao Iwasaki","orcid":null},"institutions":[{"id":"https://openalex.org/I207399273","display_name":"Utsunomiya University","ror":"https://ror.org/05bx1gz93","country_code":"JP","type":"education","lineage":["https://openalex.org/I207399273"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takao Iwasaki","raw_affiliation_strings":["Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321","institution_ids":["https://openalex.org/I207399273"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109350669","display_name":"Kenzo Okuda","orcid":null},"institutions":[{"id":"https://openalex.org/I207399273","display_name":"Utsunomiya University","ror":"https://ror.org/05bx1gz93","country_code":"JP","type":"education","lineage":["https://openalex.org/I207399273"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kenzo Okuda","raw_affiliation_strings":["Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321","institution_ids":["https://openalex.org/I207399273"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5073190118","display_name":"Katsuhirc Yamazaki","orcid":null},"institutions":[{"id":"https://openalex.org/I207399273","display_name":"Utsunomiya University","ror":"https://ror.org/05bx1gz93","country_code":"JP","type":"education","lineage":["https://openalex.org/I207399273"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Katsuhirc Yamazaki","raw_affiliation_strings":["Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Utsunomiya University, Utsunomiya, Japan 321","institution_ids":["https://openalex.org/I207399273"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5074916567"],"corresponding_institution_ids":["https://openalex.org/I207399273"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.1977203,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"17","issue":"2","first_page":"12","last_page":"20"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9955000281333923,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10772","display_name":"Distributed systems and fault tolerance","score":0.9941999912261963,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8552741408348083},{"id":"https://openalex.org/keywords/independence","display_name":"Independence (probability theory)","score":0.5492831468582153},{"id":"https://openalex.org/keywords/schema","display_name":"Schema (genetic algorithms)","score":0.5446332097053528},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.5376774668693542},{"id":"https://openalex.org/keywords/query-optimization","display_name":"Query optimization","score":0.5022075176239014},{"id":"https://openalex.org/keywords/view","display_name":"View","score":0.49979186058044434},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.4816783368587494},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.4657253921031952},{"id":"https://openalex.org/keywords/query-language","display_name":"Query language","score":0.43915417790412903},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.3834230303764343},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.33404675126075745},{"id":"https://openalex.org/keywords/database-design","display_name":"Database design","score":0.321493923664093}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8552741408348083},{"id":"https://openalex.org/C35651441","wikidata":"https://www.wikidata.org/wiki/Q625303","display_name":"Independence (probability theory)","level":2,"score":0.5492831468582153},{"id":"https://openalex.org/C52146309","wikidata":"https://www.wikidata.org/wiki/Q7431116","display_name":"Schema (genetic algorithms)","level":2,"score":0.5446332097053528},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.5376774668693542},{"id":"https://openalex.org/C157692150","wikidata":"https://www.wikidata.org/wiki/Q2919848","display_name":"Query optimization","level":2,"score":0.5022075176239014},{"id":"https://openalex.org/C54239708","wikidata":"https://www.wikidata.org/wiki/Q1329910","display_name":"View","level":3,"score":0.49979186058044434},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.4816783368587494},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.4657253921031952},{"id":"https://openalex.org/C192028432","wikidata":"https://www.wikidata.org/wiki/Q845739","display_name":"Query language","level":2,"score":0.43915417790412903},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.3834230303764343},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.33404675126075745},{"id":"https://openalex.org/C148840519","wikidata":"https://www.wikidata.org/wiki/Q1049878","display_name":"Database design","level":2,"score":0.321493923664093},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1002/scj.4690170202","is_oa":false,"landing_page_url":"https://doi.org/10.1002/scj.4690170202","pdf_url":null,"source":{"id":"https://openalex.org/S58208175","display_name":"Systems and Computers in Japan","issn_l":"0882-1666","issn":["0882-1666","1520-684X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Systems and Computers in Japan","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1479972033","https://openalex.org/W1967261084","https://openalex.org/W2107388383","https://openalex.org/W2116436709","https://openalex.org/W2133384222"],"related_works":["https://openalex.org/W2554271401","https://openalex.org/W4244527061","https://openalex.org/W2556786504","https://openalex.org/W2406556739","https://openalex.org/W2152149667","https://openalex.org/W2186703450","https://openalex.org/W175663584","https://openalex.org/W2413368787","https://openalex.org/W3125756434","https://openalex.org/W4242370757"],"abstract_inverted_index":{"Abstract":[0],"This":[1,52],"paper":[2],"proposes":[3],"a":[4,30,106],"schema":[5],"conversion":[6],"approach":[7,14,53,99,133],"for":[8,29,146],"relational":[9],"database":[10],"query":[11,31],"processing.":[12],"The":[13,74,123],"not":[15],"only":[16,105],"maintains":[17],"high":[18],"data":[19,24,66,103],"independence":[20],"by":[21,45,118,172],"encapsulating":[22],"the":[23,33,47,58,70,80,84,87,97,131,136,144,148,155,163,173],"and":[25,60,69,113,140,159],"its":[26],"physical":[27,90],"structures":[28],"with":[32,57,154],"procedures":[34,48,149,167],"that":[35,95,129],"manipulate":[36],"them,":[37],"but":[38],"also":[39],"aims":[40],"to":[41,49,102,128],"achieve":[42],"high\u2010speed":[43],"processing":[44],"dedicating":[46],"individual":[50],"functions.":[51],"is":[54,92,125,170],"experimentally":[55],"compared":[56],"interpretive":[59,98],"compilation":[61,132],"methods":[62],"in":[63,89,100],"terms":[64],"of":[65,86,96,109,130,135,138,157,165,178],"independence,":[67,104],"performance":[68,124],"procedure":[71],"program":[72,176],"size.":[73],"following":[75],"conclusions":[76],"are":[77,111,115],"drawn":[78],"from":[79],"experiments.":[81],"(1)":[82],"Although":[83,162],"effect":[85],"change":[88],"structure":[91],"greater":[93],"than":[94],"regard":[101],"limited":[107],"number":[108,164],"parts":[110],"affected":[112],"they":[114],"easily":[116],"reorganized":[117],"each":[119,179],"dedicated":[120],"procedure.":[121,180],"(2)":[122],"extremely":[126],"close":[127],"regardless":[134],"kind":[137],"computer":[139],"programming":[141],"language.":[142],"Furthermore,":[143],"overhead":[145],"calling":[147],"can":[150],"be":[151],"further":[152],"reduced":[153],"use":[156],"microprograms":[158],"hardware.":[160],"(3)":[161],"specialized":[166],"increases,":[168],"this":[169],"compensated":[171],"relatively":[174],"small":[175],"size":[177]},"counts_by_year":[],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}