<s>
In	O
databases	O
and	O
computer	B-Architecture
networking	I-Architecture
data	B-General_Concept
truncation	I-General_Concept
occurs	O
when	O
data	B-General_Concept
or	O
a	O
data	B-General_Concept
stream	I-General_Concept
(	O
such	O
as	O
a	O
file	B-Operating_System
)	O
is	O
stored	O
in	O
a	O
location	O
too	O
short	O
to	O
hold	O
its	O
entire	O
length	O
.	O
</s>
<s>
Data	B-General_Concept
truncation	I-General_Concept
may	O
occur	O
automatically	O
,	O
such	O
as	O
when	O
a	O
long	O
string	O
is	O
written	O
to	O
a	O
smaller	O
buffer	B-General_Concept
,	O
or	O
deliberately	O
,	O
when	O
only	O
a	O
portion	O
of	O
the	O
data	B-General_Concept
is	O
wanted	O
.	O
</s>
<s>
Depending	O
on	O
what	O
type	O
of	O
data	B-General_Concept
validation	O
a	O
program	O
or	O
operating	O
system	O
has	O
,	O
the	O
data	B-General_Concept
may	O
be	O
truncated	O
silently	O
(	O
i.e.	O
,	O
without	O
informing	O
the	O
user	O
)	O
,	O
or	O
the	O
user	O
may	O
be	O
given	O
an	O
error	B-Error_Name
message	I-Error_Name
.	O
</s>
