ResultSet: Exception: set type is TYPE_FORWARD_ONLY — why?

Question

I have very simple code:

pstat=con.prepareStatement(\"select typeid from users where username=? and password=?\");             
pstat.setString(1, username);         


        

Answer 1

You can only do this with a resultset that is of type TYPE_SCROLL_SENSITIVE, which is defined as "The constant indicating the type for a ResultSet object that is scrollable and generally sensitive to changes made by others."

You need to do something like the following ...

Statement statement = 
 connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
    ResultSet.CONCUR_READ_ONLY);