How to view error messages within a function

[francescomoi]

Hi.

I'm trying to call a function:

----------------------
use DBI;
....
do my_function();
....

sub my_function()
{
....
my $q1 = $DB->prepare($sql1) or die ("Error");
....
}
--------------------

But this function's got an error and returns to the line where I call
'my_function', without being able to visualize the Error.

Is it possible to view the error message within the function?

Thank you very much.

 

[J. Gleixner]

Hi.

I'm trying to call a function:

Why 'do'??? my_function() will suffice.

...

sub my_function()

You don't need () there either.

{
...
my $q1 = $DB->prepare($sql1) or die ("Error");

Don't need ()'s there either.

die "Error" is fine.

...
}
--------------------

But this function's got an error and returns to the line where I call
'my_function', without being able to visualize the Error.

Is it possible to view the error message within the function?

You can 'print' the error, or if you're in the debugger I suppose you
could view the error, regardless it's well documented.

perldoc DBI

Look for the prepare method.

Also, you might want to use RaiseError => 1. See documentation for what
it does.

 

[Tad McClellan]

I'm trying to call a function:

do my_function();

Why are you using that deprecated form of subroutine call?

sub my_function()

Why are you using prototypes?