Gerenciar Bases Oracle e SQL Server

public String createUserOracle(String nomeBase, String senhaBase)
			throws SQLException, ClassNotFoundException {
		String strCriaBase = "";
		strCriaBase = new String("CREATE USER \"" + nomeBase + "\" PROFILE DEFAULT IDENTIFIED BY \"" + senhaBase + "\" DEFAULT TABLESPACE TS_FPW_DAT_01 QUOTA UNLIMITED ON TS_FPW_DAT_01 QUOTA UNLIMITED ON TS_FPW_IND_01 ACCOUNT UNLOCK");
		try {
			con = this.init();
			stmt = con.createStatement();
			System.out.println("Código usado para criação da base: " + strCriaBase);
			stmt.execute(strCriaBase);
			JOptionPane.showMessageDialog(null, "Base [" + nomeBase + "] criada com sucesso!");
			System.out.println("Base criada: " + stmt.SUCCESS_NO_INFO);
			grantRightsOracle(nomeBase);
			JOptionPane.showMessageDialog(null, "Grants atribuídos.");
			stmt.close();
		} catch (SQLException e) {
			System.out.println("Falha de SQL: " + e.getMessage());
		} catch (ClassNotFoundException e) {
			System.out.println("Falha de Classe: " + e.getMessage());
		} finally {
			if (null != con) {
				con.close();
			}
		}
		return "SUCCESS";
	}

public String grantRightsOracle(String nomeBase) throws SQLException,
			ClassNotFoundException {

		String strGrant1 = new String("GRANT CONNECT TO " + nomeBase);
		String strGrant2 = new String("GRANT CREATE TABLE TO " + nomeBase);
		String strGrant3 = new String("GRANT CREATE TRIGGER TO " + nomeBase);
		String strGrant4 = new String("GRANT CREATE PROCEDURE TO " + nomeBase);
		String strGrant5 = new String("GRANT CREATE VIEW TO " + nomeBase);
		String strGrant6 = new String("GRANT CREATE SEQUENCE TO " + nomeBase);
		String strGrant7 = new String("GRANT SELECT_CATALOG_ROLE TO " + nomeBase);
		String strGrant8 = new String("GRANT UNLIMITED TABLESPACE TO " + nomeBase);

		try {
			con = this.init();
			stmt = con.createStatement();
			System.out.println("Atribuindo privilégios.");
			stmt.execute(strGrant1);
			stmt.execute(strGrant2);
			stmt.execute(strGrant3);
			stmt.execute(strGrant4);
			stmt.execute(strGrant5);
			stmt.execute(strGrant6);
			stmt.execute(strGrant7);
			stmt.execute(strGrant8);
			stmt.close();
			
		} catch (SQLException e) {
			System.out.println("Falha durante os GRANTs: " + e.getMessage());
		} catch (ClassNotFoundException e) {
			System.out.println("Falha durante os GRANTs: " + e.getMessage());
		} finally {
			if (null != con) {
				this.close(con);
			}
		}
		return "SUCCESS";
	}

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

import javax.swing.JOptionPane;

import conexao.ConnOracle;

public class Drop {
	
	ConnOracle conOra = new ConnOracle();
	private Connection con;
	private Statement stmt;
	private String nomeBase = null;
	
	public String deleteUserOracle(String nomeBase) throws SQLException,
			ClassNotFoundException {
		String strDrop = new String("DROP USER " +nomeBase+ " CASCADE");
		try {
			con = conOra.init();
			stmt = con.createStatement();
			stmt.execute(strDrop);
			stmt.close();
		} catch (SQLException e) {
			JOptionPane.showMessageDialog(null, "Falha de SQL: " + e.getMessage());
		} catch (ClassNotFoundException e) {
			JOptionPane.showMessageDialog(null, "Falha durante o DROP: " + e.getMessage());
		} finally {
			if (null != con) {
				conOra.close(con);
			}
		}
		return "SUCCESS";
	}
	
	public void droparBase() throws ClassNotFoundException, SQLException {
		nomeBase = JOptionPane.showInputDialog("Informe o nome da base");
		nomeBase = nomeBase.toUpperCase();
		 int res = JOptionPane.showConfirmDialog(null, "Tem certeza que deseja remover a base [" +nomeBase+"]? " +
		 		"A ação é definitiva.", "Confirmação", JOptionPane.YES_NO_OPTION);
		    if (res == JOptionPane.YES_OPTION)
		    {
		      deleteUserOracle(nomeBase);
		      JOptionPane.showMessageDialog(null, "A base ["+nomeBase+"] foi removida com sucesso!");
		    } else {
		    	JOptionPane.showMessageDialog(null, "DROP cancelado.");
		    }

	}
}