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Select returns 0 rows

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By: Eric Mendes - ointocavel

Select returns 0 rows

2002-06-01 06:58

Hi all,


I have a jsp aplication. My problem is when my select returns 0 rows. I want to know how to treat this thing, because, when the report shows no data the scream turns empty and no messages appear.


I don t know how to do to make the program show a message informing that there is no data (0 rows).



thanks in advance





By: Teodor Danciu - teodord

RE: Select returns 0 rows

2002-06-03 02:21




When the data source of the report contains

no records, the resulting document has no pages



There are to approaches to this problem:

Either you perform a test before launching the

report generation to see how many records

will be retrieved (using SELECT COUNT(*)

statement for example).

Or you could test the resulting JasperPrint object

before passing to other output formats, to see if it

contains at least one page.


I hope this helps.


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