當open cursor時就執行cursor的聲明.Test open Cursor!

測試目的:Open Curosor時，是否就是執行cursor聲明.

 

create table test_tab (col1 varchar2(20))

 

declare
x_out varchar2(100);
x_out1 varchar2(100);
cursor cur_col1
is
select col1 from test_tab;
cursor cur_col11
is
select col1 from test_tab;
begin
  open cur_col1;
  open cur_col11; ----Remark1
  loop
    fetch cur_col1 into x_out ;
    exit when cur_col1%notfound;
    dbms_output.put_line('Cursor1 Col1:'||x_out||';');
   end loop;
   close cur_col1;
  
   insert into test_tab(col1) values('20');
   dbms_output.put_line('----------------------');
  /* open cur_col11;*/  ---Remark2
   loop
     fetch cur_col11 into x_out1;
     exit when cur_col11%notfound;
     dbms_output.put_line('Cursor2 Col1:'||x_out1||';');
     end loop;
     close cur_col11;
end;

結果：當open cursor時就執行cursor的聲明