<s>
Microsoft	B-Application
SQL	I-Application
Server	I-Application
Express	I-Application
is	O
a	O
version	O
of	O
Microsoft	O
's	O
SQL	B-Application
Server	I-Application
relational	B-Application
database	I-Application
management	I-Application
system	I-Application
that	O
is	O
free	O
to	O
download	O
,	O
distribute	O
and	O
use	O
.	O
</s>
<s>
It	O
comprises	O
a	O
database	O
specifically	O
targeted	O
for	O
embedded	B-Architecture
and	O
smaller-scale	O
applications	O
.	O
</s>
<s>
The	O
product	O
traces	O
its	O
roots	O
to	O
the	O
Microsoft	O
Database	O
Engine	O
(	O
MSDE	B-Application
)	O
product	O
,	O
which	O
was	O
shipped	O
with	O
SQL	B-Application
Server	I-Application
2000	O
.	O
</s>
<s>
The	O
"	O
Express	O
"	O
branding	O
has	O
been	O
used	O
since	O
the	O
release	O
of	O
SQL	B-Application
Server	I-Application
2005	O
.	O
</s>
<s>
Microsoft	B-Application
SQL	I-Application
Server	I-Application
Express	I-Application
LocalDB	O
is	O
a	O
version	O
of	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
Express	I-Application
,	O
on-demand	O
managed	O
instance	O
of	O
the	O
SQL	B-Application
Server	I-Application
engine	O
.	O
</s>
<s>
SQL	B-Application
Server	I-Application
Express	I-Application
provides	O
many	O
of	O
the	O
features	O
of	O
the	O
paid	O
,	O
full	O
versions	O
of	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
database	O
management	O
system	O
.	O
</s>
<s>
Maximum	O
database	O
size	O
of	O
10GB	O
per	O
database	O
in	O
SQL	B-Application
Server	I-Application
2019	O
,	O
SQL	B-Application
Server	I-Application
2017	O
,	O
SQL	B-Application
Server	I-Application
2016	O
,	O
SQL	B-Application
Server	I-Application
2014	O
,	O
SQL	B-Application
Server	I-Application
2012	O
,	O
and	O
2008	O
R2	O
Express	O
(	O
4GB	O
for	O
SQL	B-Application
Server	I-Application
2008	O
Express	O
and	O
earlier	O
;	O
compared	O
to	O
2GB	O
in	O
the	O
former	O
MSDE	B-Application
)	O
.	O
</s>
<s>
1GB	O
of	O
RAM	O
(	O
runs	O
on	O
a	O
system	O
with	O
higher	O
RAM	O
amount	O
,	O
but	O
uses	O
only	O
at	O
most	O
1GB	O
per	O
instance	O
of	O
SQL	B-Application
Server	I-Application
Database	O
Engine	O
.	O
</s>
<s>
Analysis	B-Application
Services	I-Application
is	O
not	O
available	O
for	O
any	O
Express	O
variant	O
.	O
</s>
<s>
Unlike	O
the	O
predecessor	O
product	O
,	O
MSDE	B-Application
,	O
the	O
Express	O
product	O
does	O
not	O
include	O
a	O
concurrent	O
workload-governor	O
to	O
"	O
limit	O
performance	O
if	O
the	O
database	O
engine	O
receives	O
more	O
work	O
than	O
is	O
typical	O
of	O
a	O
small	O
number	O
of	O
users.	O
"	O
</s>
<s>
SQL	B-Application
Server	I-Application
Express	I-Application
includes	O
several	O
GUI	O
tools	O
for	O
database	O
management	O
.	O
</s>
<s>
The	O
predecessor	O
product	O
MSDE	B-Application
generally	O
lacked	O
basic	O
GUI	O
management	O
tools	O
,	O
</s>
<s>
Features	O
available	O
in	O
SQL	B-Application
Server	I-Application
"	O
Standard	O
"	O
and	O
better	O
editions	O
but	O
absent	O
from	O
SQL	B-Application
Server	I-Application
Express	I-Application
include	O
:	O
</s>
<s>
SQL	B-Application
Server	I-Application
Express	I-Application
LocalDB	O
announced	O
at	O
2011	O
.	O
</s>
<s>
This	O
version	O
supports	O
silent	O
installation	O
,	O
requires	O
no	O
management	O
and	O
it	O
is	O
compatible	O
with	O
other	O
editions	O
of	O
SQL	B-Application
Server	I-Application
at	O
the	O
API	O
level	O
.	O
</s>
<s>
Microsoft	O
makes	O
SQL	B-Application
Server	I-Application
Express	I-Application
N1	O
available	O
as	O
:	O
</s>
<s>
SqlLocalDB.msi	O
Microsoft®	O
SQL	B-Application
Server	I-Application
Express	I-Application
LocalDB	O
Installer	O
.	O
</s>
<s>
SQLLocalDB.exe	O
CLI	O
Microsoft®	O
SQL	B-Application
Server	I-Application
Express	I-Application
LocalDB	O
(	O
LocalDB	O
manipulation	O
tool	O
)	O
.	O
</s>
