Question

O-00054 not coming up in ORACLE forms - record is locked

Asked by: gshepher

I have an application that does not load the form if the record is in use by another user. I am trying to get it to give a message to the user so it is clear what is happening and they can come back to the record later. So far so good - thanks to Experts Echange for getting me that far. I looked at other solutions,  and, based on them, put code in my on-error trigger so I could verify what code I am getting - I am expecting sqlcode -54. Problem is - although it attempts to lock the record and fails - I get ORA-0000 normal, successful completion

message ('Yes we have an error :' ||sqlerrm);

                                  
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Asked On
2009-08-31 at 09:33:47ID24695297
Topics

Oracle IAS Application Server

,

Oracle 10.x

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: MarkusIdPosted on 2009-08-31 at 09:50:52ID: 25224292

Hi,

Have you also checked the error_text and error_code variables?

 

by: gshepherPosted on 2009-09-01 at 05:52:09ID: 25231000

See the code snippet. All these messages come back with no error.

message ('Yes we have an error : ' ||sqlerrm);
message('grr '||message_text||message_code);
message ('dbms '||dbms_error_text);
message('error text '||error_text);
message('error code '||error_code);

                                              
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by: MarkusIdPosted on 2009-09-01 at 07:08:49ID: 25231711

Hi,

Maybe you have to print out error_text or code first of all,
because there is a chance that it is reset when you call the
built-in function 'message'.

We usually have the following few lines in the
beginning of an ON-ERROR-TRIGGER:

DECLARE
  v_error_text VARCHAR2(255) := error_text;

Thus we can be safe that the error_text has not been reset
until we need to check it (we check the v_error_text insted of
error_text then).  

 

by: gshepherPosted on 2009-09-01 at 09:38:57ID: 31622620

Thank you - that is not exactly what fixed the problem, but it got me looking at where I am locking the record. I ended up putting it in when-validate-item of the key field I am using in my "select for update nowait" statement. So .. I am issuing my lock from the when-validate-item and checking the result there as well. Very good solution at this point.

20120131-EE-VQP-002

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