First normal form

Known as: 1NF 
First normal form (1NF) is a property of a relation in a relational database. A relation is in first normal form if and only if the domain of each… (More)
Wikipedia

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2018
2018
We propose a numerical linear algebra based method to find the multiplication operators of the quotient ring C[x]/I associated to… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • figure 5
Is this relevant?
2005
2005
An SQL extension is formalized for the management of spatio-temporal data, i.e. of spatial data that evolves with respect to time… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • figure 5
Is this relevant?
1995
1995
Updates, including (logical) deletions, to temporal tables that support transaction time result in insertions at the physical… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • figure 5
Is this relevant?
Highly Cited
1994
Highly Cited
1994
Joins are arguably the most important relational operators. Poor implementations are tantamount to computing the Cartesian… (More)
  • figure 1
  • figure 3
  • figure 4
  • figure 5
  • figure 6
Is this relevant?
1987
1987
The work presented in this paper is an attempt to combine two different but closely related research areas in the data base field… (More)
Is this relevant?
1987
1987
We develop new algorithms for the design of non first normal form relational databases that are in nested normal form. Previously… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • figure 5
Is this relevant?
Highly Cited
1986
Highly Cited
1986
Several investigators have stressed that the first normal form (1NF) condition [Co] is not convenient for handling a variety of… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • figure 5
Is this relevant?
Highly Cited
1984
Highly Cited
1984
Several investigators have stressed that the first normal form (1NF) condition [Co] is not convenient for handling a variety of… (More)
  • figure 2.5
  • figure 4.2
Is this relevant?
1983
1983
In this paper, non first normal form relations (or NFRa) are discussed. First the authors define compoai t ion of tuplea to… (More)
  • figure 1
  • figure 2
  • figure 3
Is this relevant?
Highly Cited
1982
Highly Cited
1982
Usually, the first normal form condition of the relational model of data is imposed. Presently, a broader class of data base… (More)
  • figure 1
Is this relevant?