Re: JDBC: scroll cursor "broken" after fetch absolute beyond end?
On 4/10/2015 7:07 AM, Andreas Leitgeb wrote:
Given a scroll-cursor (as in: "ResultSet.TYPE_SCROLL_SENSITIVE"), my
application attempts to move the ResultSet to absolute position 100
just to see, if there are at least 100 rows. Later it calls rs.first()
on the ResultSet to reposition back to start for getting the rows.
If the actual number of result rows is only 10, then positioning with
absolute(100) returns false -- so far, so good.
After that, however, repositioning to row 1 also returns false!
This is what I don't understand. There are definitely 10 rows.
So .first() returns false.
Out of curiosity what does .absolute(1) return?
Reading the docs, I'd have expected that fetching beyond the edge
would just leave the cursor one after last row, and ready to be again
repositioned to any other (valid) row.
Yes.
PS: whether attempting an rs.absolute(100) is the most elegant approach
to checking for "at least 100 rows" is not so much the question here,
I guess you know what people think about that topic ...
:-)
Arne
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