Get the record count from a query

Hi,
does anyone know how to get the record count from a sql query?
e.g: I've got a ResultSet from the Statement.excuteQuery(), and I want to know how many records this ResultSet contains, how to get this?
I'd read thoughout the documents of Statement and ResultSet, but couldn't find a solution, do I have to use another seperate query such as "select count(*)" to do this?
thanks.
Yang Liu

If you are not using a scrollable result set then the following is the best way to do it.
there are several key words in SQL that can be used, the one you are interested in is count();
so if your query at the moment is
"select col1, col2, col3 from my_table where col2=? and col3=?"you can work out how many rows will be returned by executing this command first
"select count(col1) from my_table where col2=? and col3=?"this will return a result set with one row and one column, you can get the row count as follows:
ResultSet rs = ps.executeQuery();
int rowCount = rs.getInt(1);I hope this helps :)

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i'm retreiving the result set using the executeQuery method, now i want to know how many records are there in the result set, that is the record count of the result set.
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Do you know if your DB supports "insensitive scrolling"?
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If you are not using a scrollable result set then the following is the best way to do it.
there are several key words in SQL that can be used, the one you are interested in is count();
so if your query at the moment is
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