ResultSet Positioning

How can I access the next and previous rows in a ResultSet when Iconnect to a database through a JDBC driver?

The JDBC 1.0 API only allows you to move forward through a ResultSetwith the next() method. The next() will set the ResultSet to point to thenext row and return true if that row exists. If there is no otherrow, then it returns false, allowing you to iterate over the resultsof a query with a while loop.

The JDBC 2.0 API added the ability tomove backward through a ResultSet as well as forward. This feature isnot necessarily supported by all drivers. Backward movement isperformed with the previous() methods which does exactly the samething as next(), except it fetches the previous row rather than thenext. JDBC 2.0 also adds support for relative positioning with therelative(int rows) method, which will move the result cursor theindicated number of rows from the current position where a negativenumber means to move backward.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin


The Latest

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS