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create [or replace] procedure procedure_name
  [(argument[{in|out|in out}] type,
    
   argument[{in|out|in out}] type)] {is|as}
  procedure_body
  
  
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  create procedure RaiseError(
   /*if p_Raise is true,then an unhandled error is raised.
   if p_Raise is false,the procedure completes successfully.*/
      p_Raise in boolean:=true,
      p_ParameterA  out number) as
      
  begin 
      p_Parameter1:='abcdwxc';
      p_Parameter2:=143;
  end ParameterLength;
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drop procedure procedure_name;
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create [or replace] function function_name 
   [(argument[{in|out|in out}] type,
     
     argument[{in|out|in out}] type)] 
  return return_type {is|as}
  function_body
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 create function ClassInfo(
      p_Department classes.department%type,
      p_Course     classes.course%type)
      return varchar is 
      v_CurrentStudents number;
      v_MaxStudents     number;
      v_PercentFull     numbe


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