Client applications use the locales.dat file to identify the language and character set to use. The connection process follows these steps:
When a client application starts, it checks the operating system locale setting and then checks the locales.date file to see if that setting is appropriate for Adaptive Server. For example, a locale entry for French can look like the following:
locale = fr_FR, french, iso_1
When the client connects to Adaptive Server, the language and character-set information is passed to Adaptive Server in the login record.
Adaptive Server then uses:
The character-set information, for example, iso_1, to identify the client’s character set and verify whether it can convert character data to this character set
The language (in the preceding example, French) and character-set information to see if it has messages in the client’s language
Adaptive Server software comes with some locale entries already defined in the locales.dat file. If these entries do not meet your needs, you can either modify them or add new locale entries.