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unichar(n)
The term unichar(n) describes a
datatype,
available in ASE from version 12.5. Like all
character datatypes
the datatype unichar(n) is also compatible to the
ANSI-standard.
Values, which can be stored in
columns
defined with unichar(n), are always of the fixed length n (fixed-length character string).
So, independent from the length of the
string,
the datatype unichar(n) always requires n
bytes
of
storage,
with a maximum of 16384 Bytes
The exact storage requirement in bytes can be determined using the formula "2 * n".
Usage of the Datatype unichar(n)
The datatype unichar(n) is generally used to store UTF-8 or UTF-16
character sets,
i.e. it is used for
unicode
character sets. The characters to be stored should be of predictable, fixed length
(fixed-length character string), which should be defined correspondingly when creating the
table.
Note: The
datatypes
unichar and univarchar are only supported in
ASE®,
if the default character set of the server is set to UTF-8.
See also:
nchar,
nvarchar,
text,
univarchar(n),
varchar(n).
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