Help on Oracle Report sort option!

Question

Hi,
My query in Q_1 of Oracle report is select &a_code ori_code ,&a_desc ori_description from &a ori_lup order by &b. When click on OK button it says
ORA-00936: missing expression
select ori_code,ori_description from ori_lup order by ==>
I am not able to resolve this problem.
What I am trying to do is I have some maintenance tables which have almost same columns like code, description. I want to define a single report and pass on parameters to this report, so that I can use same report for different tables. If I dont give order by clause it is working fine, but I should also provide sort option based on user selection of sort by code/description.
Thanks for your help.
Param Dasana
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Answer 1

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Andrew Tselischev ([email protected]):
Hi
If I correcly understand you need sorted query, if the parameter 'b' is given, and not sorted query otherwise.
This may be done, for exeample, by the following way.
1. Delete the text 'order by' in your query as follows:
select &a_code ori_code ,&a_desc ori_description from &a ori_lup &b
2. Create 'AFTER PARAMETER FORM' trigger:
function AfterPForm return boolean is
begin
IF LENGTH( LTRIM( RTRIM( :b ) ) ) > 0 THEN
:b := 'ORDER BY ' | | :b;
ELSE
:b := '';
END IF;
return (TRUE);
end;
I think it will help for you.
Andrew<HR></BLOCKQUOTE>
Thanks Andrew , it worked with your suggestion!!!
Param.
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