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Null model
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31	XML with Incomplete Information: Models, Properties, and Query Answering Pablo Barcelo´ Leonid Libkin Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2009-09-09 12:05:37 Relational model Binary trees Markup languages Technical communication Conjunctive query Database theory Null XML Relational algebra Computing Data management Data
32	Claims experience monitoring Add to Reading List Source URL: fbe.unimelb.edu.au Language: English - Date: 2013-08-05 02:12:14 Hypothesis testing Design of experiments Econometrics Statistical hypothesis testing F-test Confidence interval Likelihood-ratio test Economic model Null hypothesis Statistics Statistical inference Statistical tests
33	The ‘have you missed us of’ late edition So then, have you missed us? Has it really been that long since last we spoke? With the clock ticking inexorably towards the end of 2012 we thought it high time we gave you a Add to Reading List Source URL: www.iet.co.uk Language: English - Date: 2012-11-23 07:03:50 Computing Relational database management systems Data modeling Foreign key Data Definition Language Null Delete Entity-relationship model Table Data management SQL Database management systems
34	Applying Semantic Database Principles in a Relational Environment Berend de Boer and J.H. ter Bekke Add to Reading List Source URL: www.berenddeboer.net Language: English - Date: 2001-03-13 13:18:49 SQL Data modeling Relational database management systems Databases Null Relational model Data Definition Language Insert Foreign key Data management SQL keywords Computing
35	A Na¨ıve Evaluation of Queries over Incomplete Databases ´ AMELIE GHEERBRANT, LIAFA (Universit´e Paris Diderot - Paris 7 & CNRS) LEONID LIBKIN, University of Edinburgh Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2014-09-04 14:06:26 Model theory Relational model Query languages Models of computation FO Finite model theory Null Kripke semantics SQL Logic Mathematical logic Mathematics
36	Data Exchange and Schema Mappings in Open and Closed Worlds Leonid Libkina , Cristina Sirangelob a b Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2010-02-03 10:44:32 Logic Relational model Data management Relational algebra Structure Tuple Null Symbol Interpretation Mathematics Model theory Mathematical logic
37	Incomplete Information and Certain Answers in General Data Models Leonid Libkin School of Informatics, University of Edinburgh Add to Reading List Source URL: homepages.inf.ed.ac.uk Language: English - Date: 2011-03-17 10:54:22 Data Model theory Mathematical logic Relational model Structure Null XML database Function SQL Mathematics Data management Database theory
38	Corrector, a web interface for practice session with immediate feedback Rapport A/377/CRI Fabien Coelho ´ Add to Reading List Source URL: www.cri.ensmp.fr Language: English - Date: 2006-04-19 05:57:28 Data Database theory Relational database management systems Computer languages SQL Relational model Database Null Relational database Data management Computing Database management systems
39	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
40	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

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