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  • Subject: Loading large resultset to a List
  • From: "Lee, John" <JLee@xxxxxxxx>
  • Date: Wed, 31 May 2000 10:46:00 -0400

Using JDBC, I want to retrieve rows from an employee master file located on
a server. These rows I will then load into a List. This List will then be
displayed to the user, where they will position/scroll to the desired
employee.
When the number of employees in the database is relatively small, this is
easy. I can retrieve all the rows with one request and then load the List.
However, if the number of employees in the database is very large (say,
100,000), then I have a problem. Even if I could, I wouldn't want to attempt
to retrieve all 100,000 rows and then load them all into the List. Yet, as
the user is repositioning/scrolling through the List, I want it to appear to
them that it does contain all 100,000 rows.
Is there a commonly accepted way of retrieving/presenting a large table in
this manner? It almost seems that I should be retrieving some new subset of
rows each time the user uses the scroll bar or repositions the list (using a
text field). 

I'm not necessarily looking for example code. A few words outlining how one
might accomplish this, or suggested links of where I might find the
information, would go along way.

Thank you.




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