When I run a user defined function db2 returns the following error
SQL0802N Arithmetic overflow or other arithmetic exception occurred.
SQLSTATE=22003
without giving me any indication about which function is the source of that error.
Is that any setting on db2 so that I can have something like a stack trace or better information. By just looking at that message I don't know where to start investigating.
Look at the return type of your UDF. If it's something like Decimal(5,2), but the function is trying to return something bigger than that, it would give this error. what does this function do?
You might try looking in the db2dump directory (~sqllib/db2dump) for error logs. Not sure if this is an error that gets logged though.
Related
As the title says it, I have never seen this type of error whereas not even a line number is given only "The body of the #f0 function is too long"
Any ideas?
Not exactly sure if this is relevant regarding functions, but this is information relating to errors thrown due to lengths of 'if' statements, I presume the same logic here is valid with functions too.
"This error occurs when the indented code inside an if statement is too large for the compiler. Because of how the compiler works, you won’t receive a message telling you exactly how many lines of code you are over the limit. The only solution now is to break up your if statement into smaller parts (functions or smaller if statements)."
So, I would suggest you break the function into sections (if possible) or post some code so we may be more able to assist.
While decrypting I get the error : The operation couldnot be performed RNCryptorError 1
I dont understand what I am doing wrong. Here is my block of code
For anyone who might search here: this is a duplicate of RNCryptor#174, and you may want to read there as well.
Please just post code into the question rather than a screenshot. I can't compile a screenshot, and they're very hard to read.
Error 1 is an HMAC error. Either your data is corrupted or your password is incorrect.
Note that NSException never makes sense in Swift. Switch can't catch them. They only make sense in ObjC if you're going to crash the program shortly after. They're not memory-safe in ObjC. You meant to use Swift's throw and ErrorType, which are unrelated to raise or NSException.
I've found this error message. What makes it especially interesting, is that in ActivePerl-5.18 I don't get this. I've got this only with the perl-5.14 version in cygwin.
I get this message for the following command:
my $dbh = DBI->connect("dbi:Oracle:$dbname","$login","$password");
What is the exact cause, and the current syntax? Why hasn't ActivePerl-5.18 with this command?
You shouldn't be getting that error from the code that you've posted. That error is triggered when DBI::connect() is given four arguments and the fourth one isn't a reference. The "old-style" connect that the error refers to allowed you to pass the name of the database driver as the fourth argument. This is described in the last paragraph of the documentation for connect().
You wouldn't be getting that error from your code as it only passes three arguments to connect(). Well, unless the parser is getting really confused :-/
Perhaps we need to see more of your code.
I have a question about inner Matlab error management. Right now I have quite a large program with a lot of variables and functions that cumulated over my code writting and I'm 100 percent sure that I did not catch all the bugs and mistakes in the program and I don't want it to crash completely when is used by layman user. So, is there a way to display errordlg message and for example restart the program when there will be any given error directly by Matlab (for example when I forgot to declare a global variable etc.)?
Thanks for answers, Peter
Crashes are good, because they force users to report bugs.
If you don't want to go that route, Matlab provides try-catch: wrap your code in a try-catch block. If there is an error, you'll find yourself in the catch block where you can have Matlab send you an email with the error message, and restart the program if necessary.
You can use try/catch statements to respond to errors in your program. There's more information here.
Many of the Caché API methods return a %Status object which indicates if this is an error. The thing is, when it's an unknown error I don't know how to handle (like a network failure) what I really want to do is "throw" the error so my code stops what it's doing and the error gets caught by some higher level error handler (and/or the built-in %ETN error log).
I could use ztrap like:
s status = someObject.someMethod()
ztrap:$$$ISERR(status)
But that doesn't report much detail (unlike, say, .NET where I can throw an exception all the way to to the top of the stack) and I'm wondering if there are any better ways to do this.
Take a look at the Class Reference for %Exception.StatusException. You can create an exception from your status and throw it to whatever error trap is active at the time (so the flow of control would be the same as your ZTRAP example), like this
set sc = someobj.MethodReturningStatus()
if $$$ISERR(sc) {
set exception = ##class(%Exception.StatusException).CreateFromStatus(sc)
throw exception
}
However, in order to recover the exception information inside the error trap code that catches this exception, the error trap must have been established with try/catch. The older error handlers, $ztrap and $etrap, do not provide you with the exception object and you will only see that you have a <NOCATCH> error as the $ZERROR value. Even in that case, the flow of control will work as you want it to, but without try/catch, you would be no better off than you are with ZTRAP
These are two different error mechanisms and can't be combined in this way. ztrap and %ETN are for Cache level errors (the angle bracket errors like <UNDEFINED>). %Status objects are for application level errors (including errors that occurred through the use of the Cache Class Library) and you can choose how you want to handle them yourself. It's not really meaningful to handle a bad %Status through the Cache error mechanism because no Cache error has occurred.
Generally what most people do is something akin to:
d:$$$ISERR(status) $$$SomeMacroRelevantToMyAppThatWillHandleThisStatus(status)
It is possible to create your own domain with your own whole host of %Status codes with attendant %msg values for your application. Your app might have tried to connect to an FTP server and had a bad password, but that doesn't throw a <DISCONNECT> and there is no reason to investigate the stack, just an application level error that needs to be handled, possibly by asking the user to enter a new password.
It might seem odd that there are these two parallel error mechanisms, but they are describing two different types of errors. Think of one of them being "platform" level errors, and the other as "application level errors"
Edit: One thing I forgot, try DecomposeStatus^%apiOBJ(status) or ##class(%Status).LogicalToOdbc(status) to convert the status object to a human readable string. Also, if you're doing command line debugging or just want to print the readable form to the principal device, you can use $system.OBJ.DisplayError(status).