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Now showing items 1-4 of 4

    • Clustering Dependencies over Relational Tables 

      Gao, Yuchen (University of Waterloo, 2016-01-22)
      Integrity constraints have proven to be valuable in the database field. Not only can they help schema design (functional dependencies, FDs [1][2]), they can also be used in query optimization (ordering dependencies, ODs ...
    • Compiling Equality in an Abstract Relational Model via Preference Tables and Translation Tables 

      Mollazadeh, Ensieh (University of Waterloo, 2022-12-07)
      Borgida et al. have introduced a refinement to the relational model (RM) [1] which they call the abstract relational model (ARM) that extends the former in the following three ways: 1. the addition of a new abstract ...
    • Enumerating Query Plans via Conditional Tableau Interpolation 

      Feng, Eva Hu (University of Waterloo, 2023-04-21)
      Database query optimization studies the problem of finding equivalent and efficient query execution plans for user queries under schema constraints. Logic-based approaches to query optimization leverage automated theorem ...
    • On the Utility of Adding An Abstract Domain and Attribute Paths to SQL 

      Ma, Weicong (University of Waterloo, 2018-04-30)
      Albeit its popularity today, RDBMS and the relational model still have many limitations. For example, one needs to pay premature attention to naming issues in the schema designing phase; and the syntax for conjunctive ...

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