Concepedia

Null Semantics

Null Semantics is a theoretical construct in the relational data model that specifies the interpretation and behavior of null values in representing missing or inapplicable data within database tuples.

129

Publications

7.5K

Citations

166

Authors

96

Institutions

Publications per year

2017–2026

9

Parents

Publications

129

On semantic issues connected with incomplete information databases

Witold Lipski · ACM Transactions on Database Systems · 1979 · 513 citations · Full text

, , +14

Null Case and the Distribution of PRO

Roger Martin · Linguistic Inquiry · 2001 · 340 citations

, , +12

Database relations with null values

Carlo Zaniolo · Journal of Computer and System Sciences · 1984 · 264 citations

, , +6

Null Subject Versus Null Object: Some Evidence From the Acquisition of Chinese and English

Qi Wang, Diane Lillo‐Martin, Catherine T. Best et al. · Language Acquisition · 1992 · 185 citations

, , +17

The Typology of <i>Wh</i>‐Movement, <i>Wh</i>‐Questions in Malay

Peter Cole, Gabriella Hermon · Syntax · 1998 · 168 citations

, , +16

1–5 of 129

Authors

166

  1. LL
    Leonid Libkin

    University of Edinburgh, United Kingdom

    8 publications · 373 citations

    8

    h-index

  2. YR
    Yves Roberge

    University of Toronto, Canada

    4 publications · 292 citations

    4

    h-index

  3. SL
    Sebastian Link

    University of Auckland, New Zealand

    4 publications · 140 citations

    4

    h-index

  4. AT
    Ana Teresa Pérez‐Leroux

    University of Toronto, Canada

    4 publications · 273 citations

    4

    h-index

  5. MP
    Mihaela Pirvulescu

    University of Toronto, Canada

    3 publications · 187 citations

    3

    h-index

1–5 of 166

Institutions

96

  1. University of Edinburgh

    Edinburgh, United Kingdom

    9 h-index

    12 publications

    504 citations

  2. University of Toronto

    Toronto, Canada

    8 h-index

    14 publications

    1K citations

  3. Concordia University

    Montreal, Canada

    4 h-index

    8 publications

    217 citations

  4. Stanford University

    Stanford, United States

    4 h-index

    6 publications

    311 citations

  5. University of Auckland

    Auckland, New Zealand

    4 h-index

    4 publications

    140 citations

  6. University of Iowa

    Iowa City, United States

    3 h-index

    3 publications

    235 citations

  7. Sapienza University of Rome

    Rome, Italy

    3 h-index

    3 publications

    139 citations

  8. Istituto di Analisi dei Sistemi ed Informatica Antonio Ruberti

    Rome, Italy

    3 h-index

    3 publications

    139 citations

1–8 of 96

Venues

  1. ACM Transactions on Database Systems

    TODS · 10 publications · 954 citations

    10

    h-index

  2. Linguistic Inquiry

    8 publications · 872 citations

    8

    h-index

  3. ACM SIGMOD Record

    7 publications · 153 citations

    7

    h-index

  4. Information Processing Letters

    3 publications · 165 citations

    3

    h-index

  5. Natural Language & Linguistic Theory

    3 publications · 168 citations

    3

    h-index

1–5