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Display Line number where exception raise [message #496286]

Fri, 25 February 2011 16:05

balji_dxb
Messages: 37
Registered: October 2007

Member

We have Forms 10g for our application.

When i raise a exception in a procedure / trigger, i want to show the line number where the exception happened. is there any builtin to show that.

For eg

Exception when others
message('Error in this procedure');
raise;

I want the above exception to raise with line number also. How do i do it. I need some built in procedure in forms.

Please suggest

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Re: Display Line number where exception raise [message #496288 is a reply to message #496286]

Fri, 25 February 2011 16:28

balji_dxb
Messages: 37
Registered: October 2007

Member

How do i display the line number of a particular in forms, dynamically. Like error in line 5

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Re: Display Line number where exception raise [message #496424 is a reply to message #496288]

Mon, 28 February 2011 03:49

cookiemonster
Messages: 13964
Registered: September 2008
Location: Rainy Manchester

Senior Member

DBMS_UTILITY.FORMAT_ERROR_STACK may help - can't try it my self at the moment.
However I think you may be out of luck. Procedures in the DB provide line numbers when they error but I'm not convinced procedures/triggers in forms can do that.

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Re: Display Line number where exception raise [message #496434 is a reply to message #496286]

Mon, 28 February 2011 04:22

Michel Cadot
Messages: 68737
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

Quote:

I want the above exception to raise with line number also. How do i do it. I need some built in procedure in forms.

Just remove the (silly) WHEN OTHERS clause and you will have the line number.

Regards
Michel

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Re: Display Line number where exception raise [message #496438 is a reply to message #496434]

Mon, 28 February 2011 04:29

cookiemonster
Messages: 13964
Registered: September 2008
Location: Rainy Manchester

Senior Member

You won't. Forms doesn't by default display line numbers of errors unless they came from DB procedures. You can write procedures/functions and triggers that are local to the form but they don't give line numbers when they error. I'm not convinced they ever can but can't check as I don't have a working forms installation.

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Re: Display Line number where exception raise [message #496512 is a reply to message #496438]

Mon, 28 February 2011 12:08

balji_dxb
Messages: 37
Registered: October 2007

Member

@cookiemonster: DBMS_UTILITY.FORMAT_ERROR_STACK is only for database, but i need it in forms. i am using forms 10g. My assumption is when we compile a form and if there is some syntax error then forms gives the line number, similarly shouldn't have a built in to read the line number?.

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Re: Display Line number where exception raise [message #496513 is a reply to message #496512]

Mon, 28 February 2011 12:21

balji_dxb
Messages: 37
Registered: October 2007

Member

"Just remove the (silly) WHEN OTHERS clause and you will have the line number."

@michel: Can you please explain.

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Re: Display Line number where exception raise [message #496521 is a reply to message #496513]

Mon, 28 February 2011 14:06

cookiemonster
Messages: 13964
Registered: September 2008
Location: Rainy Manchester

Senior Member

If you catch an error with an exception handler, any exception handler, and re-raise it, then the original line number, assuming it was available in the first place, is lost.

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Re: Display Line number where exception raise [message #496522 is a reply to message #496512]

Mon, 28 February 2011 14:09

cookiemonster
Messages: 13964
Registered: September 2008
Location: Rainy Manchester

Senior Member

balji_dxb wrote on Mon, 28 February 2011 18:08

@cookiemonster: DBMS_UTILITY.FORMAT_ERROR_STACK is only for database, but i need it in forms. i am using forms 10g. My assumption is when we compile a form and if there is some syntax error then forms gives the line number, similarly shouldn't have a built in to read the line number?.

You would have thought there would be, but I'm not aware of one. Maybe someone else knows.

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Re: Display Line number where exception raise [message #496683 is a reply to message #496522]

Tue, 01 March 2011 22:39

Velcroman
Messages: 5
Registered: February 2011

Junior Member

Displaying line numbers in FORMS 10g is a pain. I write in line numbers
eg
declare
debug_line number;
--
begin
debug_line := n;
--
code_line;
code_line;
code_line;
code_line;
--
debug_line := n + (??);

Exeception
When others
then
message('Error in trigger/procedure on line '||debug_line||' '||sqlerrm); /* the bug_line holds the last value entered ...
therefore the error must be between that
debug_line and the next. Ruff as guts but is does work.*/
end;

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Re: Display Line number where exception raise [message #496698 is a reply to message #496683]

Wed, 02 March 2011 00:09

Littlefoot
Messages: 21823
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

I'd say that running the form in debug mode is a simpler way to achieve the same. OK, there was exception. You know which program unit it was. Set a breakpoint in there, run in debug mode. Most of the times it takes a few clicks to narrow the problem.

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