{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,5]],"date-time":"2025-10-05T04:21:19Z","timestamp":1759638079987},"publisher-location":"Berlin, Heidelberg","reference-count":48,"publisher":"Springer Berlin Heidelberg","isbn-type":[{"type":"print","value":"9783540535072"},{"type":"electronic","value":"9783540466826"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1990]]},"DOI":"10.1007\/3-540-53507-1_72","type":"book-chapter","created":{"date-parts":[[2012,2,25]],"date-time":"2012-02-25T22:10:19Z","timestamp":1330207819000},"page":"89-105","source":"Crossref","is-referenced-by-count":30,"title":["A relational object model"],"prefix":"10.1007","author":[{"given":"Marc H.","family":"Scholl","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hans-J\u00f6rg","family":"Schek","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2005,6,7]]},"reference":[{"key":"6_CR1","doi-asserted-by":"crossref","unstructured":"S. Abiteboul, P. C. Fischer, and H.-J. Schek, editors. Nested Relations and Complex Objects in Databases, volume 361 of Lecture Notes in Computer Science. Springer, Heidelberg, 1989.","DOI":"10.1007\/3-540-51171-7"},{"key":"6_CR2","doi-asserted-by":"crossref","unstructured":"S. Abiteboul and P.C. Kanellakis. Object identity as a query language primitive. In Proc. ACM SIGMOD Conf. on Management of Data, pages 159\u2013173, Portland, June 1989. ACM, New York.","DOI":"10.1145\/67544.66941"},{"issue":"2","key":"6_CR3","doi-asserted-by":"publisher","first-page":"230","DOI":"10.1145\/3857.3859","volume":"10","author":"A. Albano","year":"1985","unstructured":"A. Albano, L. Cardelli, and R. Orsini. Galileo: A strongly-typed, interactive conceptual language. ACM Transactions on Database Systems, 10(2):230\u2013260, June 1985.","journal-title":"ACM Transactions on Database Systems"},{"key":"6_CR4","doi-asserted-by":"crossref","unstructured":"F. Bancilhon. Query languages for object-oriented database systems: Analysis and a proposal. In T. H\u00e4rder, editor, Proc. GI Conf. on Database Systems for Office, Engineering and Scientific Applications, pages 1\u201318, Z\u00fcrich, March 1989. Springer IFB 204, Heidelberg.","DOI":"10.1007\/978-3-642-74571-3_1"},{"key":"6_CR5","unstructured":"F. Bancilhon, T. Briggs, S. Khoshafian, and P. Valduriez. FAD, a powerful and simple database language. In Proc. Int. Conf. on Very Large Databases, pages 97\u2013105, Brighton, September 1987."},{"key":"6_CR6","doi-asserted-by":"crossref","unstructured":"D. Beech, A foundation for evolution from relational to object databases. In J.W. Schmidt, S. Ceri, and M. Missikoff, editors, Advances in Database Technology \u2014 EDBT'88. Springer LNCS 303, March 1988.","DOI":"10.1007\/3-540-19074-0_57"},{"key":"6_CR7","unstructured":"C. Beeri. Formal models for object-oriented databases. In W. Kim, J.-M. Nicolas, and S. Nishio, editors, Proc. 1st Int'l Conf. on Deductive and Object-Oriented Databases, pages 370\u2013395, Kyoto, December 1989. North-Holland."},{"key":"6_CR8","doi-asserted-by":"publisher","first-page":"171","DOI":"10.1016\/S0364-0213(85)80014-8","volume":"9","author":"R. J. Brachman","year":"1985","unstructured":"R. J. Brachman and J. G. Schmolze. An overview of the KL-ONE knowledge representation system. Cognitive Science, 9:171\u2013216, 1985.","journal-title":"Cognitive Science"},{"issue":"3","key":"6_CR9","first-page":"5","volume":"12","author":"V. Breazu-Tannen","year":"1989","unstructured":"V. Breazu-Tannen, P. Buneman, and A. Ohori. Static type-checking in object-oriented databases. IEEE Data Engineering, 12(3):5\u201312, September 1989. Special Issue on Database Programming Languages.","journal-title":"IEEE Data Engineering"},{"issue":"4","key":"6_CR10","doi-asserted-by":"publisher","first-page":"471","DOI":"10.1145\/6041.6042","volume":"17","author":"L. Cardelli","year":"1985","unstructured":"L. Cardelli and P. Wegner. On understanding types, data abstraction, and polymorphism. ACM Computing Surveys, 17(4):471\u2013522, December 1985.","journal-title":"ACM Computing Surveys"},{"key":"6_CR11","doi-asserted-by":"crossref","unstructured":"M. J. Carey, D. J. DeWitt, and S. L. Vandenberg. A data model and query language for EXODUS. In Proc. ACM SIGMOD Conf. on Management of Data, pages 413\u2013423, Chicago, IL, May 1988. ACM, New York.","DOI":"10.1145\/50202.50252"},{"key":"6_CR12","unstructured":"U. Dayal. Queries and views in an object-oriented data model. In R. Hull, R. Morrison, and D. Stemple, editors, 2nd Int'l Workshop on Database Programming Languages, pages 80\u2013102, Oregon Coast, June 1989. Morgan Kaufmann, San Mateo, Ca."},{"key":"6_CR13","doi-asserted-by":"crossref","unstructured":"U. Dayal, F. Manola, A. Buchmann, U. Chakravarthy, D. Goldhirsch, S. Heiler, J. Orenstein, and A. Rosenthal. Simplifying complex objects: The PROBE approach to modelling and querying them. In H.-J. Schek and G. Schlageter, editors, Proc. GI Conf. on Database Systems for Office, Engineering and Scientific Applications, pages 17\u201337, Darmstadt, April 1987. Springer IFB 136, Heidelberg.","DOI":"10.1007\/978-3-642-72617-0_2"},{"issue":"1","key":"6_CR14","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1109\/69.50908","volume":"2","author":"O. Deux","year":"1990","unstructured":"O. Deux et al. The story of O 2. IEEE Trans. on Knowledge and Data Engineering, 2(1):91\u2013108, March 1990. Special Issue on Prototype Systems.","journal-title":"IEEE Trans. on Knowledge and Data Engineering"},{"key":"6_CR15","doi-asserted-by":"crossref","unstructured":"K.R. Dittrich, W. Gotthard, and P.C. Lockemann. DAMOKLES \u2014 the database system for the UNIBASE software engineering environment. IEEE Database Engineering Bulletin, 10(1), March 1987.","DOI":"10.1007\/3-540-17189-4_107"},{"key":"6_CR16","doi-asserted-by":"crossref","unstructured":"G. Graefe and D. J. DeWitt. The EXODUS optimizer generator. In Proc. ACM SIGMOD Conf. on Management of Data, pages 160\u2013172, San Francisco, May 1987. ACM, New York.","DOI":"10.1145\/38713.38734"},{"key":"6_CR17","doi-asserted-by":"crossref","unstructured":"G. Graefe and D. Maier. Query optimization in object-oriented database systems. In K. R. Dittrich, editor, Proc. Int. Workshop on Object-Oriented Database Systems, pages 358\u2013363, Bad M\u00fcnster, September 1988. Springer LNCS 334, Heidelberg.","DOI":"10.1007\/3-540-50345-5_36"},{"key":"6_CR18","doi-asserted-by":"crossref","unstructured":"L.M. Haas, J.C. Freytag, G.M. Lohman, and H. Pirahesh. Extensible query processing in Starburst. In Proc. ACM SIGMOD Conf. on Management of Data, pages 377\u2013388, Portland, OR, May 1989. ACM, New York.","DOI":"10.1145\/67544.66962"},{"key":"6_CR19","doi-asserted-by":"crossref","unstructured":"S. Heiler and S.B. Zdonik. Views, data abstractions, and inheritance in the FUGUE data model. In K.R. Dittrich, editor, Advances in Object-Oriented Database Systems, Heidelberg, September 1988. Springer LNCS 334.","DOI":"10.1007\/3-540-50345-5_20"},{"issue":"3","key":"6_CR20","doi-asserted-by":"publisher","first-page":"201","DOI":"10.1145\/45072.45073","volume":"19","author":"R. Hull","year":"1987","unstructured":"R. Hull and R. King. Semantic database modeling: Survey, applications, and research issues. ACM Computing Surveys, 19(3):201\u2013260, September 1987.","journal-title":"ACM Computing Surveys"},{"key":"6_CR21","doi-asserted-by":"crossref","unstructured":"W. Kim. A model of queries for object-oriented databases. In Proc. Int. Conf. on Very Large Databases, pages 423\u2013432, Amsterdam, August 1989.","DOI":"10.1145\/63320.66510"},{"key":"6_CR22","unstructured":"W. Lamersdorf, G. M\u00fcller, and J. W. Schmitt. Language support for office modelling. In Proc. Int. Conf. on Very Large Databases, pages 280\u2013288, Singapore, August 1984."},{"issue":"3","key":"6_CR23","first-page":"23","volume":"11","author":"P.-\u00c5. Larson","year":"1988","unstructured":"P.-\u00c5. Larson. The data model and query language of LauRel. IEEE Database Engineering Bulletin, 11(3):23\u201330, September 1988. Special Issue on Nested Relations.","journal-title":"IEEE Database Engineering Bulletin"},{"key":"6_CR24","doi-asserted-by":"crossref","unstructured":"C. L\u00e9cluse and P. Richard. Modeling complex structures in object-oriented databases. In Proc. ACM SIGACT\/SIGMOD Symp. on Principles of Database Systems, pages 360\u2013368, Philadelphia, PA, March 1989. ACM, New York.","DOI":"10.1145\/73721.73756"},{"key":"6_CR25","doi-asserted-by":"crossref","unstructured":"G.M. Lohman. Grammar-like functional rules for representing query optimization alternatives. In Proc. ACM SIGMOD Conf. on Management of Data, pages 18\u201327, Chicago, June 1988. ACM, New York.","DOI":"10.1145\/50202.50204"},{"key":"6_CR26","unstructured":"D. Maier. Why isn't there an object-oriented data model? Technical Report CS\/E-89-002, Oregon Graduate Center, Beaverton, OR, May 1989."},{"key":"6_CR27","unstructured":"B. Meyer. Object-Oriented Software Construction. International Series in Computer Science. Prentice Hall, Englewood Cliffs, 1988."},{"key":"6_CR28","unstructured":"B. Mitschang. Extending the relational algebra to capture complex objects. In Proc. Int. Conf. on Very Large Databases, pages 297\u2013305, Amsterdam, August 1989."},{"key":"6_CR29","doi-asserted-by":"crossref","unstructured":"S.L. Osborn. Identity, equality, and query optimization. In K.R. Dittrich, editor, Advances in Object-Oriented Database Systems, pages 346\u2013351, Heidelberg, September 1988. Springer LNCS 334.","DOI":"10.1007\/3-540-50345-5_34"},{"key":"6_CR30","doi-asserted-by":"crossref","unstructured":"H.-B. Paul, H.-J. Schek, M. H. Scholl, G. Weikum, and U. Deppisch. Architecture and implementation of the Darmstadt database kernel system. In Proc. ACM SIGMOD Conf. on Management of Data, San Francisco, 1987. ACM, New York.","DOI":"10.1145\/38713.38737"},{"issue":"4","key":"6_CR31","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1016\/0306-4379(86)90012-8","volume":"11","author":"P. Pistor","year":"1986","unstructured":"P. Pistor and R. Traunm\u00fcller. A data base language for sets, lists, and tables. Information Systems, 11(4):323\u2013336, December 1986.","journal-title":"Information Systems"},{"issue":"1","key":"6_CR32","doi-asserted-by":"publisher","first-page":"99","DOI":"10.1016\/0306-4379(87)90021-4","volume":"12","author":"M. A. Roth","year":"1987","unstructured":"M. A. Roth, H. F. Korth, and D. S. Batory. SQL\/NF: A query language for \u2014 1NF relational databases. Information Systems, 12(1):99\u2013114, March 1987.","journal-title":"Information Systems"},{"issue":"1","key":"6_CR33","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1109\/69.50904","volume":"2","author":"H.-J. Schek","year":"1990","unstructured":"H.-J. Schek, H.-B. Paul, M.H. Scholl, and G. Weikum. The DASDBS project: Objectives, experiences and future prospects. IEEE Trans. on Knowledge and Data Engineering, 2(1):25\u201343, March 1990. Special Issue on Prototype Systems.","journal-title":"IEEE Trans. on Knowledge and Data Engineering"},{"issue":"2","key":"6_CR34","doi-asserted-by":"publisher","first-page":"137","DOI":"10.1016\/0306-4379(86)90003-7","volume":"11","author":"H.-J. Schek","year":"1986","unstructured":"H.-J. Schek and M. H. Scholl. The relational model with relation-valued attributes. Information Systems, 11(2):137\u2013147, June 1986.","journal-title":"Information Systems"},{"key":"6_CR35","doi-asserted-by":"crossref","unstructured":"H.-J. Schek and M. H. Scholl. The two roles of nested relations in the DASDBS project. In S. Abiteboul, P. C. Fischer, and H.-J. Schek, editors, Nested Relations and Complex Objects in Databases. Springer LNCS 361, Heidelberg, 1989.","DOI":"10.1007\/3-540-51171-7_20"},{"key":"6_CR36","doi-asserted-by":"crossref","unstructured":"M. H. Scholl. Theoretical foundation of algebraic optimization utilizing unnormalized relations. In ICDT '86: Int. Conf. on Database Theory, pages 380\u2013396, Rome, Italy, September 1986. LNCS 243, Springer, Berlin, Heidelberg.","DOI":"10.1007\/3-540-17187-8_48"},{"key":"6_CR37","unstructured":"M. H. Scholl. Towards a minimal set of operations for nested relations. In M. H. Scholl and H.-J. Schek, editors, Handout Int. Workshop on Theory and Applications of Nested Relations and Complex Objects, Darmstadt, April 1987. (Position paper)."},{"key":"6_CR38","unstructured":"M. H. Scholl. The Nested Relational Model \u2014 Efficient Support for a Relational Database Interface. PhD thesis, Department of Computer Science, Technical University of Darmstadt, 1988. (in German)."},{"key":"6_CR39","unstructured":"M. H. Scholl, H.-B. Paul, and H.-J. Schek. Supporting flat relations by a nested relational kernel. In Proc. Int. Conf. on Very Large Databases, pages 137\u2013146, Brighton, September 1987. Morgan Kaufmann, Los Altos, Ca."},{"key":"6_CR40","doi-asserted-by":"crossref","unstructured":"M.H. Scholl, C. Laasch, and M. Tresch. Views in object-oriented databases. submitted for publication, July 1990.","DOI":"10.1007\/3-540-55015-1_10"},{"key":"6_CR41","unstructured":"M.H. Scholl and H.-J. Schek. A synthesis of complex objects and object-orientation. In Proc. IFIP TC2 Conf. on Object Oriented Databases \u2014 Analysis, Design & Construction (DS-4), Windermere, UK, July 1990. North-Holland. to appear."},{"issue":"3","key":"6_CR42","first-page":"29","volume":"12","author":"G.M. Shaw","year":"1989","unstructured":"G.M. Shaw and S.B. Zdonik. An object-oriented query algebra. IEEE Data Engineering, 12(3):29\u201336, September 1989. Special Issue on Database Programming Languages.","journal-title":"IEEE Data Engineering"},{"key":"6_CR43","doi-asserted-by":"crossref","unstructured":"M.R. Stonebraker and L.A. Rowe. The design of POSTGRES. In Proc. ACM SIGMOD Conf. on Management of Data, pages 340\u2013355, Washington, D.C., May 1986. ACM, New York.","DOI":"10.1145\/16894.16888"},{"key":"6_CR44","unstructured":"D.D. Straube and M.T. \u00d6zsu. Query transformation rules for an object algebra. Technical Report TR 89-23, Dept. of Computing Science, University of Alberta, Edmonton, Alberta, Canada, August 1989."},{"key":"6_CR45","doi-asserted-by":"crossref","unstructured":"D.C. Tsichritzis and O.M. Nierstrasz. Fitting round objects into square databases. In S. Gjessing and K. Nygaard, editors, Proc. European Conf. on Object-Oriented Programming, pages 283\u2013299, Oslo, August 1988. LNCS 322, Springer Verlag, Heidelberg.","DOI":"10.1007\/3-540-45910-3_17"},{"key":"6_CR46","doi-asserted-by":"crossref","unstructured":"G. Wiederhold. Views, objects, and databases. IEEE Computer, December 1986.","DOI":"10.1109\/MC.1986.1663126"},{"issue":"1","key":"6_CR47","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1109\/69.50906","volume":"2","author":"K. Wilkinson","year":"1990","unstructured":"K. Wilkinson, P. Lyngbaek, and W. Hasan. The Iris architecture and implementation. IEEE Trans. on Knowledge and Data Engineering, 2(1):63\u201375, March 1990. Special Issue on Prototype Systems.","journal-title":"IEEE Trans. on Knowledge and Data Engineering"},{"issue":"2","key":"6_CR48","doi-asserted-by":"crossref","first-page":"204","DOI":"10.1145\/42190.46167","volume":"10","author":"N. Wirth","year":"1988","unstructured":"N. Wirth. Type extensions. ACM Transactions on Programming Languages and Systems, 10(2):204\u2013214, June 1988.","journal-title":"ACM Transactions on Programming Languages and Systems"}],"container-title":["Lecture Notes in Computer Science","ICDT '90"],"original-title":[],"link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/3-540-53507-1_72.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,6,20]],"date-time":"2023-06-20T18:05:26Z","timestamp":1687284326000},"score":1,"resource":{"primary":{"URL":"http:\/\/link.springer.com\/10.1007\/3-540-53507-1_72"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1990]]},"ISBN":["9783540535072","9783540466826"],"references-count":48,"URL":"https:\/\/doi.org\/10.1007\/3-540-53507-1_72","relation":{},"ISSN":["0302-9743","1611-3349"],"issn-type":[{"type":"print","value":"0302-9743"},{"type":"electronic","value":"1611-3349"}],"subject":[],"published":{"date-parts":[[1990]]}}}