Resultset Java Null Check. Statement statement null. If rs null -- This does not indicate whether or not a resultSet is empty or not.
Retrieving the Value of a Column Using the Index Number. So in your case you dont even need to check rather just return rsfirst. If there are no rows next to its current position this method returns false else it returns true.
Int foo resultSetgetObjectfoo null.
While rsnext ResultSet processing here Connection connection null. Retrieving the Value of a Column Using the Index Number. Moreover the standard way to check whether a ResultSet is empty or not is to try setting its cursor to first row by using its first and if it returns false it indicates that ResultSet is empty. This is correct but the main problem with this approach is if the ResultSet is not empty then you may miss the first row if.