Updating database java

Other than that, this MySQL database table is relatively normal, though it is greatly simplified. Given that MySQL database table design, let's assume that we just want to update one record in this table.

To do so, we just need to follow these steps:. Note that in this example my MySQL database username is "root", my password is blank, and the MySQL database is running on the same computer where this program is run, so the database host name is "localhost". Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Updating a single row database in Java Ask Question. Asked 5 years, 2 months ago. Active 4 years, 10 months ago. Viewed 4k times. I would like to avoid adding IDs to the objects if possible.

Improve this question. Karolizzz Karolizzz 1 1 silver badge 12 12 bronze badges. Unrelated, but: do not concatenate values into SQL queries. Learn to properly use a PreparedStatement instead. Add a comment. Active Oldest Votes. Now add a new panel to the form. Add a new button to the panel. Change the default variable name to btnUpdateRecord. Change the text on the button to Update Record. We're also going to have buttons to create a new record in the database, to save a record, cancel any updates, and to delete a record.

So add four more buttons to the panel. Make the following changes:. When you're done, your form should look something like this one though feel free to rearrange the buttons :. Yes Connection Pooling can be the solution. Quartz will allow you to schedule jobs in a cron like fashion.

So Quartz is useful, but might be a bit of overkill depending on what you need. The tasks take place inside an application that already runs as a service so I think Quartz is probably not necessary.

Show 1 more comment. Robert Robert I'm not sure how the validation query would help though if it's just being run each time my regular queries run, those will determine if the database connectivity is available in themselves, won't they? If you prefer that your SQL query fails and you have to redo it instead of letting that handle DBCP by the validation query internally - well that's your choice.

Well, in this situation the data that's getting written to the database is only valid for a short time server monitoring metrics e. CPU load so I am more worried about re-establishing the connection. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.