<s>
Oracle	B-Application
Business	O
Intelligence	O
Enterprise	O
Edition	O
is	O
a	O
business	O
intelligence	O
server	B-Application
developed	O
by	O
Oracle	B-Application
.	O
</s>
<s>
The	O
server	B-Application
provides	O
centralized	O
data	O
access	O
to	O
all	O
business	O
related	O
information	O
in	O
a	O
corporate	O
entity	O
.	O
</s>
<s>
Oracle	B-Application
BI	I-Application
Server	I-Application
is	O
a	O
query	O
,	O
reporting	O
and	O
analysis	O
server	B-Application
and	O
provides	O
services	O
to	O
the	O
other	O
components	O
of	O
the	O
Business	O
Intelligence	O
suite	O
such	O
as	O
Data	B-Application
mining	I-Application
,	O
Reporting	O
,	O
and	O
Analytic	O
Applications	O
.	O
</s>
<s>
The	O
Server	B-Application
uses	O
ODBC	B-Application
2.0	O
which	O
provides	O
a	O
standard	O
software	O
API	O
method	O
for	O
using	O
database	B-Application
management	I-Application
systems	I-Application
and	O
JDBC	B-Language
(	O
Java	B-Language
Database	I-Language
Connectivity	I-Language
)	O
which	O
is	O
an	O
API	O
for	O
the	O
Java	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
The	O
BI	O
server	B-Application
compiles	O
incoming	O
query	O
requests	O
into	O
an	O
executable	O
code	O
and	O
then	O
execute	O
the	O
code	O
.	O
</s>
<s>
independent	O
of	O
the	O
data	O
sources	O
,	O
and	O
they	O
submit	O
them	O
to	O
the	O
BI	O
server	B-Application
.	O
</s>
<s>
The	O
server	B-Application
translates	O
the	O
data	O
to	O
some	O
combination	O
of	O
physical	O
SQL	O
and	O
sends	O
them	O
to	O
the	O
back-end	O
databases	B-Application
.	O
</s>
<s>
Server	B-Application
administration	O
functions	O
include	O
facilities	O
such	O
as	O
monitoring	O
,	O
statistics	O
logging	O
,	O
cancellation	O
,	O
session	O
and	O
query	O
management	O
.	O
</s>
<s>
The	O
administration	O
of	O
the	O
server	B-Application
is	O
managed	O
internally	O
with	O
using	O
standard	O
protocols	O
e.g.	O
</s>
<s>
Active	O
Directory	O
is	O
an	O
implementation	O
of	O
LDAP	B-Protocol
services(Lightweight Directory Access Protocol )	O
which	O
is	O
an	O
application	O
protocol	O
for	O
querying	O
and	O
modifying	O
directory	O
services	O
running	O
over	O
TCP	B-Protocol
and	O
IP	B-Protocol
.	O
</s>
<s>
Query	O
compilation	O
in	O
BI	O
server	B-Application
has	O
five	O
phases	O
:	O
</s>
<s>
The	O
multi-functional	O
parser	O
accepts	O
the	O
full	O
ANSI	O
SQL92	O
syntax	B-Application
as	O
its	O
input	O
and	O
its	O
main	O
function	O
is	O
to	O
generate	O
a	O
parse	O
tree	O
which	O
is	O
a	O
tree	O
data	O
structure	O
that	O
represents	O
the	O
syntactic	B-Application
structure	I-Application
of	O
a	O
string	O
as	O
its	O
output	O
.	O
</s>
<s>
This	O
phase	O
distributes	O
relational	B-Application
query	I-Application
optimization	O
and	O
suitable	O
native	O
SQL	O
generation	O
.	O
</s>
<s>
Code	B-Application
generation	I-Application
in	O
the	O
server	B-Application
produces	O
native	O
query	B-Application
processing	I-Application
language	O
directives	O
to	O
communicate	O
with	O
remote	O
databases	B-Application
.	O
</s>
<s>
It	O
also	O
produces	O
a	O
code	O
for	O
any	O
remaining	O
query	B-Application
processing	I-Application
that	O
has	O
not	O
been	O
function	O
shipped	O
to	O
remote	O
databases	B-Application
.	O
</s>
<s>
Parallel	B-Operating_System
execution	I-Operating_System
directives	O
are	O
inserted	O
in	O
this	O
code	O
and	O
it	O
is	O
used	O
for	O
the	O
analytics	O
execution	O
engine	O
.	O
</s>
