#Delete mysql how to
#Delete mysql password

('Got an exception! ') Īs noted in the Java MySQL DELETE source code, this SQL DELETE query is hard-wired to delete the row in the database where the 'id' column has a value of '3'. PreparedStatement preparedStmt = conn.prepareStatement(query) String query = 'delete from users where id = ?'

i'm deleting the row where the id is '3', which corresponds to my String myUrl = 'jdbc:mysql://localhost/test' Ĭonnection conn = DriverManager.getConnection(myUrl, 'root', '') * MySQL database, called from a Java program, using a

* Demonstrates the use of a SQL DELETE statement against a

#Delete mysql password

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'. I've tried to document the following Java MySQL DELETE example so you can see these steps.

Catch any SQL exceptions that may come up during the process.

Close our Java MySQL database connection.

Set the fields on our Java PreparedStatement object.

Create a Java PreparedStatement for our SQL DELETE query.

Create a Java Connection to our MySQL database.

To do so, we just need to follow these steps: Given that MySQL database table, let's assume that we just want to delete one record in this table. This is important to see, because I'm about to delete that 'Barney Rubble' data record. | id | first_name | last_name | date_created | is_admin | num_points | An example MySQL SELECT statementīefore looking at the Java source code, if I now execute this SQL query from the MySQL command prompt: Other than that, this MySQL database table is relatively normal, though it is greatly simplified. I made it up so I could show an int data type in this table, and I was thinking of those websites where points are awarded for giving correct answers.) (In particular, the field 'num_points' is a little unusual. To keep it simple - but also show several different data types - I created the following MySQL database table:Ī few of these fields are a little contrived, but I wanted to show several different data types in one table, so this is what I came up with. The first thing we’ll need is an example MySQL database table to work with.

#Delete mysql how to

Here’s a Java MySQL DELETE example, demonstrating how to issue a SQL DELETE command from your Java source code.