How to use update query in java

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".

Typically in a database program like this you'll end up updating rows based on the primary key of the database table. Specifically, in this example, you'd probably already know the "id" for the user Fred, and when you go to update Fred's data, you would normally do it like this:.

In this case I am updating a field of a specific row and I am not retrieving rows putting theme into a ResultSet object. You are looking for statement. If your method recives for example two variables like fkStato and pkCoda, that contains the value you want, you can make a simple query:.

How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to perform an update query in Java? I have made the change to my SQL statement but it still doesn't update the database..

FatmaTurk I updated this answer; you may want to try rearranging the order of your placeholder strings. Please see answer for more details. FatmaTurk No problem; and As you ask questions, don't forget to let the community know if an answer helps you by either upvoting an answer, or accepting the answer! Could you try to add a e. Maybe there is a problem with your DB Hugues Hugues 3 3 silver badges 10 10 bronze badges. Sign up or log in Sign up using Google.

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