Creating user in oracle through JDBC

Question

I m trying to create a user in oracle through jdbc. When I m creating user through SQL plus I m able to do it successfully but when I m doing it through java code I can see that user�s entry in dba_users & dba_role_privs tables.But when I am trying to drop that user I get message �User doesn�t exist�. Also when I am trying to logged in through the newly created user (one that I have created through code)in SQL Plus , I get error �ORA-01017: invalid username/password ; logon denied�.If user doesn�t exist then how can I see it�s entry in dba_users & dba_role_privs?? One more thing �. I can drop that user through code but not using SQL Plus.
This is the code�.In this code I have logged in using system-manager & I m trying to create user test88 with password test88.I am granting 3 roles to this user Connect , Resource & DBA same as Scott �Tiger. Please help.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
public class OracleDB1 {
public static final String isSUCCESS = "SUCCESS";
public static final String isORACLE = "ORACLE";
public static final String isFail = "ERROR";
public String dbDriver;
public String dbURL;
public String dbUserName;
public String dbName;
public String dbPassword;
public String dbType;
private Connection con;
private Statement stmt;
* @param s Username
* @param s1 Indentified by
* @param s2 tablespace
* @param s3
* @return
* @throws SQLException
* @throws ClassNotFoundException
public String createUserOracle(String s, String s1, String s2, String s3)
throws SQLException, ClassNotFoundException {
System.out.println("Creating user method ");
String s4 = "";
if (!s2.equals("")) {
if (!s3.equals("")) {
s4 = new String("CREATE USER \"" + s + "\" IDENTIFIED BY \""
+ s1 + "\" DEFAULT TABLESPACE " + s2 + " QUOTA " + s3
+ " ON " + s2);
else {
s4 = new String("CREATE USER \"" + s + "\" IDENTIFIED BY \""
+ s1 + "\" DEFAULT TABLESPACE " + s2
+ " TEMPORARY TABLESPACE TEMP QUOTA UNLIMITED ON " + s2);
else {
s4 = new String("CREATE USER \"" + s + "\" IDENTIFIED BY \"" + s1
+ "\"");
try {
con = this.init();
System.out.println("The new user statemeent " + s4);
stmt = con.createStatement();
System.out.println("The new user statemeent " + s4);
stmt.execute(s4);
System.out.println("the info success "+stmt.SUCCESS_NO_INFO);
stmt.close();
} finally {
if (null != con) {
con.close();
return "SUCCESS";
public String grantRightsOracle(String s)
throws SQLException, ClassNotFoundException
String s1 = new String("GRANT connect , resource , dba to \"" + s + "\"");
try
con=this.init();
stmt = con.createStatement();
System.out.println("granting "+s+"with the connect priveleges");
stmt.execute(s1);
stmt.close();
finally
if(null != con)
this.close(con);
return "SUCCESS";
public Connection init() throws SQLException, ClassNotFoundException {
System.out.println("initialising");
Class.forName("oracle.jdbc.driver.OracleDriver");
dbURL = "jdbc:oracle:thin:@localhost:1521:priya";
con = DriverManager.getConnection(dbURL, "system", "manager");
return con;
public void close(Connection connection) throws SQLException {
if (!connection.isClosed()) {
connection.close();
public String disableUserOracle(String s) throws SQLException,
ClassNotFoundException {
String s1 = "REVOKE CONNECT, RESOURCE, SELECT ANY TABLE FROM \"" + s
+ "\"";
try {
con = this.init();
stmt = con.createStatement();
stmt.execute(s1);
stmt.close();
} finally {
if (null != con) {
this.close(con);
return "SUCCESS";
public String deleteUserOracle(String s) throws SQLException,
ClassNotFoundException {
String s1 = new String("DROP USER \"" + s + "\" CASCADE");
try {
con = this.init();
stmt = con.createStatement();
stmt.execute(s1);
stmt.close();
} finally {
if (null != con) {
this.close(con);
return "SUCCESS";
public static void main(String args[]) {
String s = "";
OracleDB1 oracleoperations = new OracleDB1();
try {
System.out.println("creating user");
s = oracleoperations.createUserOracle("test88", "test88", "", "");
System.out.println("creating user is " + s);
s=oracleoperations.grantRightsOracle("test88");
System.out.println("granting rights" + s);
//s=oracleoperations.deleteUserOracle("test88");
//System.out.println("deleting user" + s );
} catch (Exception exception) {
exception.printStackTrace();

Answer 1

I read that by default, JDBC uses an operation mode called auto-commit. This means that every update to the database is immediately made permanent.Still for this program I have tried connection.commit() also , Still it is not working.
I think that problem is not with commit otherwise I shouldn't be able to see that newly created user entry in these tables from Sql Plus:-
1)DBA_ROLE_PRIVS
2) DBA_USERS
3) DBA_sys_privs
Ya but these is no entry in DBA_OBJECTS table for this user.