
IDS 7.31 : User-defined exceptions in SPL
You can supply your own error message with sqlcode -746.
Everything else, afaik, will want to look up the message in an .iem file.
Hi again,
I still have troubles with exceptions in SPL stored procedures. I would
like to send back to caller processes of my procedures 'home-defined'
exceptions but I can't find any tip, neither in Informix documentation
nor on the IIUG site.
Here is an example of the exception bloc in my procedures :
ON EXCEPTION SET v_errnum, v_eisam, v_errmsg
IF v_errnum IN (-xxx) THEN
LET v_errmsg = 'my_message_xxx';
ELIF v_errnum IN (-yyy) THEN
LET v_errmsg = 'my_message_yyy';
END IF;
RAISE EXCEPTION v_errnum, v_eisam, v_errmsg;
END EXCEPTION;
I have tried to do so with unused exception but it dos not work as I
would like to :
- for example, use of exceptions codes -9771 or -5310 : the exception is
raised but my error message is not send with the exception code to the
sender. I get back something like < SQL Error (-9771) : Unknown error
message -9771 >.
- use of exception code -1000 : the exception is raised and my error
message is also send back to the caller within another message. I get
back something like < SQL Error (-1000) : No help message found for the
message number "My message" >.
- use of exception code -13500 : The execption is raised with a
particular message. This message changes with the range of the exception
code. I get something like < SQL Error (-13500) : Cannot open file
'isqlrf.iem'.
So my questions are :
- which exception code can I use for the SQLCODE ?
- how to associate an error message on these SQLCODE values (define
error messages in particular files, ...) ? Otherwise, is it possible to
set the SQLCODE to a value which has not corresponding error message,
and to set ISAM Code and message to 'home-defined' values ?
Thanks a lot for your answers.
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