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Informix Error -79783: Encoding or code set not supported.

Cause and resolution

Encoding or code set not supported.

The encoding or code set entered in the DB_LOCALE or CLIENT_LOCALE variable is not valid.

For valid code sets, see the Informix JDBC Driver Driver Programmer's Guide.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-79783 fires when the encoding/code set given in DB_LOCALE or CLIENT_LOCALE is invalid — per the official guidance.

  1. An invalid encoding/code set in DB_LOCALE/CLIENT_LOCALE, per the official guidance — the direct, only cause.
Solutions / Resolution
  1. See the Informix JDBC Driver Programmer's Guide for valid code sets, per the official guidance, and correct the setting.
Examples
N/A

No specific triggering statement is documented beyond an invalid encoding/code set.

Diagnostic Checks
  1. Check the DB_LOCALE/CLIENT_LOCALE value's code-set component against the documented valid code sets.
Related Errors / Related Topics
  • -79784 — "Locale not supported." A related DB_LOCALE/CLIENT_LOCALE error, on the locale component rather than the code-set component.

An invalid encoding/code set was given in DB_LOCALE/CLIENT_LOCALE — check the Programmer's Guide for valid code sets.