<s>
The	O
Alpha	B-Language
language	O
was	O
the	O
original	O
database	O
language	O
proposed	O
by	O
Edgar	O
F	O
.	O
Codd	O
,	O
the	O
inventor	O
of	O
the	O
relational	B-Application
database	I-Application
approach	O
.	O
</s>
<s>
Alpha	B-Language
influenced	O
the	O
design	O
of	O
QUEL	B-Language
.	O
</s>
<s>
It	O
was	O
eventually	O
supplanted	O
by	O
SQL	B-Language
(	O
which	O
is	O
however	O
based	O
on	O
the	O
relational	B-Algorithm
algebra	I-Algorithm
defined	O
by	O
Codd	O
in	O
"	O
Relational	O
Completeness	O
of	O
Data	O
Base	O
Sublanguages	O
"	O
)	O
,	O
which	O
IBM	O
developed	O
for	O
its	O
first	O
commercial	O
relational	B-Application
database	I-Application
product	O
.	O
</s>
