Informix Error -79828: Function parameter specified is not an OUT parameter.

Reasons / Common Causes

-79828 fires when a parameter index other than the last is treated as the OUT parameter — per the official guidance, Informix functions can have only one OUT parameter, and it's always the last parameter.

1. A parameter index other than the function's last parameter treated as OUT, per the official guidance — the direct, only cause.

Solutions / Resolution

1. Use the function's last parameter index for OUT-parameter operations, per the official guidance.

Examples

N/A

No specific triggering statement is documented beyond specifying the wrong parameter index.

Diagnostic Checks

1. Check the parameter index used for OUT-parameter operations, and confirm it's the function's last parameter.

Related Errors / Related Topics

• -79827 — "Function does not have an output parameter." A related OUT-parameter error, on the function having no usable OUT parameter at all rather than the wrong index being specified.

An OUT-parameter operation specified a parameter index other than the function's last — use the last parameter index instead.