<s>
A	O
VARCHAR	B-Language
or	O
variable	B-Language
character	I-Language
field	I-Language
is	O
a	O
set	O
of	O
character	O
data	O
of	O
indeterminate	O
length	O
.	O
</s>
<s>
The	O
term	O
varchar	B-Language
refers	O
to	O
a	O
data	O
type	O
of	O
a	O
field	O
(	O
or	O
column	B-Application
)	O
in	O
a	O
database	B-Application
which	O
can	O
hold	O
letters	O
and	O
numbers	O
.	O
</s>
<s>
Varchar	B-Language
fields	O
can	O
be	O
of	O
any	O
size	O
up	O
to	O
a	O
limit	O
,	O
which	O
varies	O
by	O
databases	B-Application
:	O
an	O
Oracle	B-General_Concept
11g	I-General_Concept
database	B-Application
has	O
a	O
limit	O
of	O
4000	O
bytes	O
,	O
a	O
MySQL	O
5.7	O
database	B-Application
has	O
a	O
limit	O
of	O
65,535	O
bytes	O
(	O
for	O
the	O
entire	O
row	O
)	O
and	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
2008	I-Application
has	O
a	O
limit	O
of	O
8000	O
bytes	O
(	O
unless	O
varchar(max )	O
is	O
used	O
,	O
which	O
has	O
a	O
maximum	O
storage	O
capacity	O
of	O
2	O
gigabytes	O
)	O
.	O
</s>
<s>
nvarchar	O
is	O
a	O
variation	O
of	O
varchar	B-Language
,	O
and	O
which	O
is	O
more	O
suitable	O
depends	O
on	O
the	O
use	B-Architecture
case	I-Architecture
.	O
</s>
