Row ranges 1-15, 16-30 in select list has refresh problem

Hi, Gurus:
I use APEX 4.1.1 with Oracle 11GR2. I have a question that was discussed before here, but I still have trouble to understand it. I have some reports that cannot refresh content when I choose another page of the same report. I used row ranges 1-15, 16-30 in select list with pagination. It did not work. However, I used the exactly same report page settings for some other queries producing exactly same columns, except the query logic is slightly different thus number of rows in report are different. row ranges 1-15, 16-30 in select list with pagination works well in other reports.
I came across discussions and set partial page refresh to no for those report pages with refreshment problem. This time it worked well, but it was extremely slow as my query is very slow. I was wondering why some of report do not need to set partial page refresh to no and have no problem to refresh, but some of reports have problem to refresh (I even copied the report page without problem for those reports with problem and just change queries.)? Is there any other way to refresh these reports quicker other than SQL tuing?
Please help me.
Sam
Edited by: lxiscas on Dec 31, 2012 11:36 AM
Edited by: lxiscas on Dec 31, 2012 11:49 AM

I just found that it is due cache page settings, I should set it to no as a developer

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bahan wrote:
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Row ranges 1-15, 16-30 in select list has refresh problem

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