JDBC Statement – Delete a row

A JDBC Statement example to delete a row.

RowDelete.java

package com.mkyong.jdbc.statement.row;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class RowDelete {

    public static void main(String[] args) {

        try (Connection conn = DriverManager.getConnection(
                "jdbc:postgresql://127.0.0.1:5432/test", "postgres", "password");
             Statement statement = conn.createStatement()) {

            int row = statement.executeUpdate(deleteByName("mkyong"));

            // rows affected
            System.out.println(row);

        } catch (SQLException e) {
            System.err.format("SQL State: %s\n%s", e.getSQLState(), e.getMessage());
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    private static String deleteByName(String name) {

        return "DELETE FROM EMPLOYEE WHERE NAME='" + name + "'";

    }
}

P.S Tested with PostgreSQL 11 and Java 8

pom.xml

	<dependency>
		<groupId>org.postgresql</groupId>
		<artifactId>postgresql</artifactId>
		<version>42.2.5</version>
	</dependency>

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References

About the Author

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mkyong
Founder of Mkyong.com, love Java and open source stuff. Follow him on Twitter. If you like my tutorials, consider make a donation to these charities.

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Digvijay

String query = “DELETE FROM DBUSER WHERE USER_ID = “+1+” “;