Jdbc update statement example in java

This method takes no arguments and returns the number of row affected. In case you want to reuse the PreparedStatement , you need to populate new values for the placeholders and call the method executeUpdate again. For example, if you want to update the last name of candidate with id to Grohe , you can do it as follows:. As always, you should close the PreparedStatement by calling its close method. The following illustrates the complete example of using PreparedStatement to update data.

We will also have a look at the steps to be taken for the JDBC update and learn its implementation along with the help of an example. The rows are retrieved from the table whose name is specified; they are filtered provided the where clause is given in the update command. Further, from these rows the columns whose names are specified are assigned with the value which is given in the command. Note that, in the same update command, we can change as many values as we want depending on our necessity.

After you have specified the update query, you will also need to prepare the statement which you can execute. Let us see the steps that are required inside the JDBC application while updating the data of the database. Most of the basic functionalities can be imported by using import java.

This is used for representing the connection between your java application and the database in a physical manner. This object is further sent to the database as it includes the update command that we have to execute.

Connection; import java. DriverManager; import java. Asked 4 years, 2 months ago. Active 2 years, 11 months ago. Viewed 10k times. Laurenz Albe k 15 15 gold badges silver badges bronze badges. Arya Arya 7, 21 21 gold badges 82 82 silver badges bronze badges.

Add a comment. Active Oldest Votes. Gord Thompson k 28 28 gold badges silver badges bronze badges. Elliott Frisch Elliott Frisch k 19 19 gold badges silver badges bronze badges.

Is conn. Also, doesn't the createStatement need to be called with ResultSet. GordThompson Good catch, thanks.

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