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use iReport with dynamic SQL query?


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By: cosjav - cosjav

use iReport with dynamic SQL query?

2004-08-05 00:25

Ok, I have been able to use iReports to generate reports based on a 'static' SQL query (eg. SELECT * FROM Table1 WHERE age=30)

 

but how can I generate a report based on a dynamic SQL query? For example with the query I wrote above, instead of age=30, age can be equal to some variable which is defined through another webpage. (There will be a separate webpage allowing a user to enter in an age in a text box, and when they click submit, this number is sent to iReport??)

 

 

 

 

 

By: Giulio Toffoli - gt78

RE: use iReport with dynamic SQL query?

2004-08-05 06:19

 

Use parameters and set your query to something like this:

 

select * from persons where age= $P{MyAge}

 

The MyAge parameter must be declared in values dialog. Take attention to the class type of your parameters.

 

Read jasperreports docs on howto set parameter value at runtime.

 

Giulio

 

 

 

 

By: cosjav - cosjav

RE: use iReport with dynamic SQL query?

2004-08-05 20:54

Hi Giulio,

 

Thanks for replying. I did try using parameters but how are the values of these parameters set at runtime? (I cant find the information from the JasperReports docs)

 

I want to have a separate webpage (JSP page) allowing a user to enter in an age in a text box, and when they click submit, this number is set as the value of the parameter...

 

Please help me on how to do this, I am really stuck!!

 

Thanks,

 

Javad

 

 

 

 

By: navy - navydhc

RE: use iReport with dynamic SQL query?

2004-08-07 00:34

I meet the same problem,but there is a little difference that the parameters couldnot be fixed on

 

for example :

 

first time SELECT * FROM Table1 WHERE age=?;

 

first time SELECT * FROM Table1 WHERE height=?

 

so I want to know how to realize "where ..." is dynamic?

 

 

 

 

By: flying - ibmj2ee

RE: use iReport with dynamic SQL query?

2004-08-18 22:59

use JRDataSource

 

 

 

 

By: Fabricio - fbrmelo

RE: use iReport with dynamic SQL query?

2004-08-20 15:06

How ??

 

 

 

 

By: flying - ibmj2ee

RE: use iReport with dynamic SQL query?

2004-08-21 04:10

look for jasperreport's examples

CustomDataSource

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