September 2004
Intermediate to advanced
710 pages
24h 25m
English
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Closing a Database Connection
Once an application is finished using an open connection, that connection should be closed. Some APIs automatically close connections when the application exits; however, it is best to explicitly close the connection as soon as the application is finished accessing the database to allow other applications access to precious connection resources.
Tip
Calling the appropriate close methods when finished with an ADO.NET or JDBC object is essential to freeing precious database resources used by the application. Both ADO.NET and Java offer very few guarantees when objects are finalized; therefore, it is common for those applications that don’t close objects explicitly to run out of database resources (such as connections, statement handles, and memory).
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.