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Codd

Codd is a surname of British origin. It may refer to several people, most notably Edgar Frank Codd (1923–2003), a British computer scientist who worked for IBM and pioneered the relational database model.

Edgar F. Codd's work revolutionized data management by proposing that data be stored in tables (relations) and

Impact: The relational model became the dominant paradigm for data management, shaping modern database design, querying,

Other uses: The surname Codd is borne by other individuals in various professions, though Edgar F. Codd

manipulated
with
a
language
based
on
predicate
logic.
In
1970
he
published
“A
Relational
Model
of
Data
for
Large
Shared
Data
Banks,”
outlining
the
theoretical
foundation
of
relational
databases.
The
model
emphasized
data
independence,
clear
data
representation,
and
the
use
of
a
structured
query
language.
Codd
later
formulated
twelve
rules,
commonly
known
as
Codd's
12
rules,
describing
the
key
properties
a
database
management
system
must
satisfy
to
be
considered
relational.
His
concepts
guided
the
development
of
commercial
relational
systems
in
the
1980s
and
beyond,
and
IBM's
System
R
project
demonstrated
the
practicality
of
the
approach,
influencing
standards
like
SQL.
and
optimization.
Codd's
ideas
underpin
most
contemporary
relational
database
systems
used
in
business,
science,
and
web
applications.
remains
the
most
widely
cited
figure
in
discussions
of
relational
databases.