SQL查询返回数据，但ResultSet为空

Question

i have searched in so questions but there is nothing like my problem. I've this easy SQL

SELECT MIN(date) 
FROM table1 
WHERE date > date1 (obviously date1 is a parameter)

i tried to catch the empty resultSet with if(rset.next()) but it didn't work because MIN() function returns EVER 1 row though it is an empty row, so what can i do to catch it?

Thanks in advance

Answer 1

Sorry I cannot prove my idea with running system but I would try to use wasNull() on result set:

if (rs.next()) {
    date = rs.getDate(1);
    if (rs.wasNull()) {
     // do something
    }
}