Names with double-byte characters
If your installation supports double-byte character set
(DBCS) data, you can use double-byte characters alone or mixed with
single-byte character set (SBCS) data in your names. The following
rules apply when using double-byte characters:
- Names with both double-byte and single-byte characters can contain
the same single-byte characters described under Naming conventions.
- You can specify column headings in a form with mixed double-byte
and single-byte characters. A heading consisting of double-byte
characters only can be up to 19 double-byte characters long.
- Names containing only double-byte characters can contain no
more than eight double-byte characters. But a name can be qualified by
a user identification. The qualifier can contain as many as eight
single-byte characters and cannot contain
double-byte characters.
- If your database specifically supports double-byte characters
in table names, all names can contain any double-byte characters.
- If your database does not specifically support DBCS data in
table names, all names can contain any double-byte characters except those
that are represented internally as a double quotation mark (X'7F').
For information on the use and handling of DBCS data, see Using DB2 QMF.
