Table 14-8: Global variables for language and
character sets
Global variable
|
Description
|
|---|
@@char_convert
|
Contains 0 if character set conversion
is not in effect. Contains 1 if character set conversion is in effect.
|
@@client_csid
|
Contains client’s character
set ID. Set to -1 if the client character set has never been initialized;
otherwise, it contains the most recently used client character set’s id from syscharsets.
|
@@client_csexpansion
|
Returns the expansion factor used when
converting from the server character set to the client character
set. For example, if it contains a value of 2, a character in the
server character set can take up to twice the number of bytes after
translation to the client character set.
|
@@client_csname
|
Contains client’s character
set name. Set to NULL if the client character set has never been
initialized; otherwise, it contains the name of the most recently
used character set.
|
@@langid
|
Defines the local language ID of the
language currently in use, as specified in syslanguages.langid.
|
@@language
|
Defines the name of the language currently
in use, as specified in syslanguages.name.
|
@@maxcharlen
|
Contains
the maximum length, in bytes, of multibyte characters in the default character
set.
|
@@ncharsize
|
Contains
the average length, in bytes, of a national character.
|
