Edgar F. Codd
Hugh Darwen
database normalization
List of pioneers in computer science
Relational Model/Tasmania (RM/T)
gosyujin - /gosyujin/E.F.Codd
/suto3/google.iconEdgar F. Codd
image Edgar F. Codd
define Edgar F. Codd
wikipedia Edgar F. Codd
weblio Edgar F. Codd
kotobank Edgar F. Codd
jisho Edgar F. Codd