Startup OracleDB with JDBC

Question

Hello,
I'm trying to shutdown/startup the database server using JDBC, following the the steps from here http://download.oracle.com/docs/cd/B28359_01/java.111/b31224/dbmgmnt.htm
Shutting down works perfectly, but if I try the startup after it, it won't work
Error: Exception in thread "main" java.sql.SQLException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
After the shutdown, if I run a "lsnrctl status", there is no service listed, so I guess is normal to get this error.
The DB version that i'm using: Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
The jdbc jar file: ojdbc6.jar
The java code:
public class DbStart { static final String DB_URL =                         "jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))" + "(CONNECT_DATA=(SERVICE_NAME=ORCL)))"; // static final String DB_URL = "jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=" + // "(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SID=ORCL)))"; public static void main(String[] argv) throws Exception { shutdown(); start(); mount(); } private static void mount() throws SQLException { // Mounting and opening the database OracleDataSource ds1 = new OracleDataSource(); Properties prop1 = getConnProp(); ds1.setConnectionProperties(prop1); ds1.setURL(DB_URL); OracleConnection conn1 = (OracleConnection) ds1.getConnection(); Statement stmt = conn1.createStatement(); stmt.executeUpdate("ALTER DATABASE MOUNT"); stmt.executeUpdate("ALTER DATABASE OPEN"); stmt.close(); conn1.close(); } private static void start() throws SQLException { // Starting up the database: OracleDataSource ds = new OracleDataSource(); Properties prop = getConnProp(); prop.setProperty("prelim_auth", "true"); ds.setConnectionProperties(prop); ds.setURL(DB_URL); OracleConnection conn = (OracleConnection) ds.getConnection(); conn.startup(OracleConnection.DatabaseStartupMode.NO_RESTRICTION); conn.close(); } private static void shutdown() throws SQLException { // Shutting down the database OracleDataSource ds2 = new OracleDataSource(); Properties prop3 = getConnProp(); ds2.setConnectionProperties(prop3); ds2.setURL(DB_URL); OracleConnection conn2 = (OracleConnection) ds2.getConnection(); conn2.shutdown(OracleConnection.DatabaseShutdownMode.IMMEDIATE); Statement stmt1 = conn2.createStatement(); stmt1.executeUpdate("ALTER DATABASE CLOSE NORMAL"); stmt1.executeUpdate("ALTER DATABASE DISMOUNT"); stmt1.close(); conn2.shutdown(OracleConnection.DatabaseShutdownMode.FINAL); conn2.close(); } private static Properties getConnProp() { Properties prop = new Properties(); prop.setProperty("user", "system"); prop.setProperty("password", "manager"); prop.setProperty("internal_logon", "sysdba"); return prop; } }
Do you have any suggestion on how to change this code in order to work?

Answer 1

864811 wrote:
I love your comparison, but still, do you think Oracle was joking arround when they've inserted the OracleConnection.startup() method? See the link to the article from my first post.
After I shutdown the database using the code below, when i connect from the command line with "sqlplus / as sysdba" i get a "Connected to an idle instance." With the sqlplus "startup" command I can get the db switched back on.
I was thinking that maybe my shutdown code needs some changes, or maybe i miss some configuration on the server.Depends on what one means by "shut down the database" but in general what you are suggesting is impossible.
For me to 'start' any application on any server using any programming language I must in fact run something on that server. And that is only possible if something else is already running on that server which accepts my remote commands and acts on them.
Thus for example I can use ssh to log in to a server and run all the admin commands I like associated with Oracle (and other stuff.) That works because there is a ssh server running on the target box. If the ssh server wasn't running then there would be no way for me to start it.