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Conjunctive query
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#	Item
91	Incomplete Data: What Went Wrong, and How to Fix It Leonid Libkin School of Informatics University of Edinburgh Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2015-01-10 05:31:52 Mathematics Computer languages Model theory Relational model Conjunctive query Null Data integration Relational algebra SQL Data management Database theory Mathematical logic
92	Open and Closed World Assumptions in Data Exchange Leonid Libkin1 and Cristina Sirangelo2 1 School of Informatics, University of Edinburgh Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2009-09-16 09:05:50 Computing Database management systems Conjunctive query Closed world assumption Data exchange SQL Null Database Structure Data management Database theory Data
93	SQL’s Three-Valued Logic and Certain Answers Leonid Libkin School of Informatics, University of Edinburgh Abstract SQL uses three-valued logic for evaluating queries on databases with nulls. The standard theoretical ap Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2015-01-10 06:40:54 Relational model Null Relational algebra Conjunctive query FO SQL Function Symbol Data management Mathematics Computing
94	Noname manuscript No. (will be inserted by the editor) Certain Answers over Incomplete XML Documents: Extending Tractability Boundary Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2014-11-26 07:55:10 Conjunctive query Database theory Relational model Complexity classes Model theory Null Data integration SQL FO Data management Computing Mathematics
95	On the Tradeoff between Mapping and Querying Power in XML Data Exchange∗ Shun’ichi Amano Claire David Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2010-04-02 11:57:33 Markup languages Technical communication Data management Document Type Definition XML Conjunctive query Data model SQL Symbol Computing Data Information
96	Theory of Answering Queries Using Views ∗ Alon Y. Halevy† Department of Computer Science and Engineering Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2006-07-04 06:02:35 Data Information Data integration Conjunctive query Alberto O. Mendelzon Datalog Query optimizer Database View Data management Database management systems Database theory
97	Expressive Languages for Path Queries over Graph-Structured Data Pablo Barcelo´ Carlos Hurtado Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2010-04-02 11:57:56 Metalogic Model theory Structure Universal algebra FO Probabilistically checkable proof String Data integration Conjunctive query Mathematics Formal languages Theoretical computer science
98	On the Complexity of Query Answering over Incomplete XML Documents Amelie ´ Gheerbrant Leonid Libkin Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2012-04-04 06:15:23 Complexity classes Conjunctive query Database theory Relational model Data integration FO Relational algebra Lowest common ancestor SQL Computing Theoretical computer science Data management
99	Reasoning About Pattern-Based XML Queries Am´elie Gheerbrant1, Leonid Libkin1, and Cristina Sirangelo2 1 School of Informatics, University of Edinburgh 2 Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2013-06-07 12:18:52 Conjunctive query Database theory Complexity classes Relational model Structure Data integration Symbol FO Boolean satisfiability problem Theoretical computer science Mathematics Data management
100	When is Na¨ıve Evaluation Possible? Amelie ´ Gheerbrant Leonid Libkin Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2013-06-07 12:18:09 Model theory Database theory Conjunctive query Modal logic Null Structure Kripke semantics FO Closed world assumption Logic Mathematics Mathematical logic

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