<s>
high-performance	O
multi-model	B-Operating_System
database	I-Operating_System
system	O
.	O
</s>
<s>
The	O
database	O
system	O
supports	O
relational	B-Architecture
,	O
graph	B-Application
and	O
document	B-General_Concept
database	I-General_Concept
models	O
.	O
</s>
<s>
Remodelling	O
into	O
a	O
multi-model	B-Operating_System
database	I-Operating_System
was	O
supported	O
by	O
the	O
Skolkovo	O
Innovation	O
Center	O
in	O
2017	O
.	O
</s>
<s>
In	O
NitrosBase	B-Application
,	O
all	O
data	O
are	O
stored	O
in	O
the	O
format	O
of	O
the	O
internal	O
graph	B-Application
model	O
,	O
while	O
data	O
in	O
other	O
models	O
are	O
their	O
views	O
(	O
representations	O
;	O
similar	O
to	O
SQL	B-Language
views	I-Language
)	O
.	O
</s>
<s>
NitrosBase	B-Application
supports	O
the	O
following	O
languages	O
:	O
</s>
<s>
SQL	B-Language
(	O
with	O
elements	O
of	O
object	O
syntax	O
)	O
–	O
for	O
querying	O
data	O
in	O
relational	B-Architecture
view	O
;	O
</s>
<s>
SPARQL	B-Language
and	O
Gremlin-style	O
language	O
Graph-it	O
–	O
for	O
querying	O
data	O
in	O
graph	B-Application
view	O
;	O
</s>
<s>
JSONiq	B-General_Concept
and	O
MongoDB	B-Application
Query	O
–	O
for	O
querying	O
data	O
in	O
document	B-General_Concept
view	O
.	O
</s>
<s>
The	O
internal	O
graph	B-Application
model	O
is	O
close	O
to	O
RDF*	O
which	O
is	O
used	O
in	O
Blazegraph	O
and	O
Amazon	B-Application
Neptune	I-Application
.	O
</s>
<s>
That	O
allows	O
it	O
to	O
treat	O
the	O
internal	O
data	O
graph	B-Application
both	O
as	O
RDF	O
graph	B-Application
and	O
as	O
Property	O
Graph	B-Application
,	O
performing	O
queries	O
both	O
in	O
SPARQL	B-Language
and	O
Gremlin-style	O
languages	O
.	O
</s>
<s>
Instead	O
of	O
indexes	B-Data_Structure
based	O
on	O
B+	O
-trees	O
traditionally	O
used	O
in	O
graph	B-Application
databases	I-Application
,	O
NitrosBase	B-Application
uses	O
a	O
sparse	O
link	O
index	O
of	O
its	O
own	O
devising	O
.	O
</s>
<s>
Another	O
source	O
of	O
performance	O
gain	O
is	O
storage	O
optimization	O
on	O
the	O
physical	O
level	O
in	O
order	O
to	O
reduce	O
the	O
number	O
of	O
random	B-General_Concept
access	I-General_Concept
operations	O
.	O
</s>
<s>
Like	O
memSQL	B-Application
,	O
NitrosBase	B-Application
translates	B-Application
a	O
query	O
into	O
C++	B-Language
code	I-Language
.	O
</s>
<s>
Nitrosbase-derived	O
product	O
MS	O
SQL	B-Language
Server	O
Accelerator	O
was	O
awarded	O
first	O
prize	O
at	O
the	O
Silicon	O
Valley	O
Open	O
Doors	O
conference	O
in	O
2009	O
and	O
named	O
"	O
startup	O
of	O
the	O
day	O
"	O
of	O
the	O
Microsoft	O
BizSpark	O
program	O
on	O
3	O
March	O
2010	O
.	O
</s>
