SET CURRENT LOCALE LC_MESSAGES statement

The SET CURRENT LOCALE LC_MESSAGES statement changes the value of the CURRENT LOCALE LC_MESSAGES special register.

This statement is not under transaction control.

Invocation

This statement can be embedded in an application program or issued interactively. It is an executable statement that can be dynamically prepared.

Authorization

None required.

Syntax

Description

The CURRENT LOCALE LC_MESSAGES special register identifies the locale that is used by EVMON_UPGRADE_TABLES, as well as monitoring routines in the monreport module. EVMON_UPGRADE_TABLES and the monitoring routines use the value of CURRENT LOCALE LC_MESSAGES to determine in which language the result set text output should be returned. User-defined routines that are coded to return messages could also use the value of CURRENT LOCALE LC_MESSAGES to determine what language to use for message text.

host-variable

A variable of type CHAR or VARCHAR. It cannot be set to null.

string-constant

A character string constant.

Notes

Initial value: The initial value of the CURRENT LOCALE LC_MESSAGES special register is 'en_US'.
Language availability: If the language for the locale is not available to the database manager, messages will be returned in English.
Code page compatibility: The language for the locale specified must be supported by the code page of the output parameter or returns type of a routine that uses the special register to determine what language to return message text information in. If the database is not a Unicode database (and the routine was not created with PARAMETER CCSID UNICODE) and some characters in the language for the locale cannot be represented in the database code page, substitution characters will be returned as a result of code page conversion.
Potential future use: In a future release, the value of the CURRENT LOCALE LC_MESSAGES special register might be used for other areas of the database environment that involve messages.
Valid locales and naming: For information about valid locales and their naming, see Locale names for SQL and XQuery.

Examples

Example 1: The following statement sets the CURRENT LOCALE LC_MESSAGES special register to the English (Canada) locale.
```
   SET CURRENT LOCALE LC_MESSAGES = 'en_CA'   
```
Example 2: The following statement sets the CURRENT LOCALE LC_MESSAGES special register to the French (France) locale. The CONNECTION routine in the monreport module is then invoked to have its output returned in French.
```
   SET CURRENT LOCALE LC_MESSAGES = 'fr_FR'
   CALL MONREPORT.CONNECTION
```
Example 3: Assume that the user-defined procedure XYZ.STORELOCATOR takes a zip code or postal code input. It returns a result set of stores of the XYZ company within a 30 minute drive from the zip code or postal code given as input. If the zip code or postal code is not in the correct format, an error message is returned that indicates what the problem is with the format. The procedure is coded to be able to return the error message in the language determined from the value of the CURRENT LOCALE LC_MESSAGES special register. The following statement sets the CURRENT LOCALE LC_MESSAGES special register to the Spanish (Mexico) locale. The store locator user-defined procedure is then invoked and any error messages will be returned in Spanish.
```
   SET CURRENT LOCALE LC_MESSAGES = 'es_MX'
   CALL XYZ.STORELOCATOR(:ZIP, :STATUSMSG)
```