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set termout off   
  COLUMN prompter new_value m_prompt     
  select host_name || ':' || instance_name ||' >'  prompter       
  from sys.v_$instance;     
  set sqlprompt '&m_prompt'
set termout on  


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create or replace java source named FirstClass as
public class FirstClass{
public static String greeting(String name){
return "Hello " + name + "!";
}
}
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http://blog.oraclecontractors.com/?p=212
There are a number of tables used by Oracle Applications that should have no rows in them when all is running well, and if any, only a few rows that are in error. ......
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