import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class Main {
public static void main(String[] args) throws Exception {
Connection conn = getOracleConnection();
Statement stmt = null;
ResultSet rs = null;
stmt = conn.createStatement();
//only for Oracle
rs = stmt.executeQuery("select object_name from user_objects where object_type = 'TABLE'");
while (rs.next()) {
String tableName = rs.getString(1);
System.out.println("tableName=" + tableName);
}
stmt.close();
conn.close();
}
/*private static Connection getHSQLConnection() throws Exception {
Class.forName("org.hsqldb.jdbcDriver");
System.out.println("Driver Loaded.");
String url = "jdbc:hsqldb:data/tutorial";
return DriverManager.getConnection(url, "sa", "");
}*/
/* public static Connection getMySqlConnection() throws Exception {
String driver = "org.gjt.mm.mysql.Driver";
String url = "jdbc:mysql://localhost/demo2s";
String username = "oost";
String password = "oost";
*/
/* Class.forName(driver);
Connection conn = DriverManager.getConnection(url, username, password);
return conn;
}
*/
public static Connection getOracleConnection() throws Exception {
String driver = "oracle.jdbc.driver.OracleDriver";
String url = "jdbc:oracle:thin:@localhost:1521:Test";
String username = "system";
String password = "root12345";
Class.forName(driver); // load Oracle driver
Connection conn = DriverManager.getConnection(url, username, password);
return conn;
}
}
I'm going to get the list of tables from Test database but I'm getting the error like listener refused connection, Listener refused the connection with the following error as:
ORA-12505, TNS: listener does not currently know of SID given in connect descriptor
But when I change Test to Orcl then its working fine but I want to select the table from particular Database.
Where did I go wrong?
