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For column values with the following data types, a code attribute can be entered as part of a column definition, if required: CHAR[ACTER], VARCHAR, LONG[VARCHAR]
A code attribute defines the sort sequence to be used for comparing values.
|
Code Attribute |
Column Values |
|
No code attribute |
Have the code attribute defined in the database system |
|
ASCII |
In ASCII code |
|
BYTE |
Code-neutral, that is, the column values are not converted by the database system |
|
UNICODE |
In UNICODE |
If you do not specify a code attribute, the code defined in the database system is used.
· The code can be defined for particular users using appropriate SQL statements (for more information, see: CREATE/ALTER USER Statement or CREATE/ALTER USERGROUP Statement).
· The code can be defined globally during the installation of the database system using the special database parameter DEFAULT_CODE.
The code defined for a user overrides the code specified globally in the database system.
