Rename column name of table using DBCP


 

Rename column name of table using DBCP

This tutorial demonstrate how to rename column name of the table using DBCP.

This tutorial demonstrate how to rename column name of the table using DBCP.

Code:

import java.sql.*;
import org.apache.commons.dbcp.BasicDataSource;

public class RenameColumn {
  public static void main(String[] args) {
    BasicDataSource bds = new BasicDataSource();
    bds.setDriverClassName("com.mysql.jdbc.Driver");
    bds.setUrl("jdbc:mysql://localhost:3306/mydb");
    bds.setUsername("root");
    bds.setPassword("");
    try {
      Connection con = bds.getConnection();

      try {
        Statement st = con.createStatement();
        int n = st
        .executeUpdate("ALTER TABLE emp CHANGE empname name varchar(30)");
        System.out.println("Column name changed !!!");
      catch (SQLException s) {
        System.out.println("No field renamed");
      }
    catch (Exception e) {
      e.printStackTrace();
    }
  }
}

Directory structure of files:

 

In the lib folder place all required jar files ie. commons-collections.jar, commons-dbcp.jar, commons-pool.jar, j2ee.jar and mysql-connector-java-5.1.7-bin.jar

In the pathset.bat write following statement

set classpath=.;lib/commons-collections.jar;lib/commons-dbcp.jar;lib/commons-pool.jar;lib/j2ee.jar;lib/mysql-connector-java-5.1.7-bin.jar

Output:

 

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