{"id":"https://openalex.org/W2119919611","doi":"https://doi.org/10.1007/978-3-642-78529-0_17","title":"SQL im Informatik-Unterricht? Erfahrungen mit einer Programmiersprache der 4. Generation in der unterrichtlichen Praxis","display_name":"SQL im Informatik-Unterricht? Erfahrungen mit einer Programmiersprache der 4. Generation in der unterrichtlichen Praxis","publication_year":1993,"publication_date":"1993-01-01","ids":{"openalex":"https://openalex.org/W2119919611","doi":"https://doi.org/10.1007/978-3-642-78529-0_17","mag":"2119919611"},"language":"de","primary_location":{"id":"doi:10.1007/978-3-642-78529-0_17","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-78529-0_17","pdf_url":null,"source":{"id":"https://openalex.org/S4210235615","display_name":"Informatik aktuell","issn_l":"1431-472X","issn":["1431-472X","2628-8958"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Informatik aktuell","raw_type":"book-chapter"},"type":"book-chapter","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/A5056969704","display_name":"Helmut Witten","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Helmut Witten","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5008525604","display_name":"Johann Penon","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Johann Penon","raw_affiliation_strings":[],"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5056969704"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.1114149,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"141","last_page":"147"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12826","display_name":"Education Methods and Technologies","score":0.9122999906539917,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T12826","display_name":"Education Methods and Technologies","score":0.9122999906539917,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3592609763145447}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3592609763145447}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-642-78529-0_17","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-78529-0_17","pdf_url":null,"source":{"id":"https://openalex.org/S4210235615","display_name":"Informatik aktuell","issn_l":"1431-472X","issn":["1431-472X","2628-8958"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Informatik aktuell","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","score":0.8399999737739563,"id":"https://metadata.un.org/sdg/4"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W121880135","https://openalex.org/W140366824","https://openalex.org/W1563353289","https://openalex.org/W1572234777","https://openalex.org/W1604644329","https://openalex.org/W2158601470","https://openalex.org/W2499040257"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W2358668433","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W2382290278","https://openalex.org/W2478288626","https://openalex.org/W4391913857","https://openalex.org/W2350741829","https://openalex.org/W2530322880"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}