How to connect to Oracle as “SYS” from SQL*Plus in Java

Question

I want to connect to Oracle as SYS from SQL*Plus in Java. But I am not able to connect. But I am able to connect as user named SCOTT. My code snippet i

Answer 1

I found the answer by hit and try and its the connection string.

If one wants to connect as sysdba/sysoper the connection string should be like:

public static void test_script () {  
  String fileName = "@t.sql";  
  String sqlPath = "D:\\";  
  String sqlCmd = "sqlplus";  
  // IP_address,portid and sid are variables to be entered and t.sql is the file to be read .It contains show user command 
  String arg3   = "sys/oracle123@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=IP_address)(Port=portid))(CONNECT_DATA=(SID=sid))) as sysdba";
  String arg4= fileName;
  try {  
    String line;  
    ProcessBuilder pb = new ProcessBuilder(sqlCmd,arg3,arg4);
    Map env = pb.environment();  
    env.put("VAR3", arg3);
    env.put("VAR4", arg4);
    pb.directory(new File(sqlPath));  
    pb.redirectErrorStream(true);  
    Process p = pb.start();  
    BufferedReader bri = new BufferedReader(new InputStreamReader(p.getInputStream()));  
    BufferedReader bre = new BufferedReader(new InputStreamReader(p.getErrorStream()));  
    while ((line = bri.readLine()) != null) {  
        System.out.println(line);  
    }       
    bri.close();  
    while ((line = bre.readLine()) != null) {  
        System.out.println(line);  
    }  
    bre.close();  
    System.out.println("\n\n\n");
    System.out.println("Done.");  
  } catch (Exception err) {  
    err.printStackTrace();  
  }  
}