Oracle显示游标的使用及游标for循环

nbsp;--普通的fetch into

/*普通方式*/ 
declare 
cursor myemp_cur is select * from myemp; 
v_myemp myemp%rowtype; 
begin 
 open myemp_cur; 
 fetch myemp_cur into v_myemp; 
 while myemp_cur%found loop 
 dbms_output.put_line(v_myemp.ename); 
 fetch myemp_cur into v_myemp; 
 end loop; 
end; 

nbsp;--高效的bulk collect

/*高效bulk collect for*/ 
declare 
cursor myemp_cur 
is select * from myemp; 
type myemp_tab is table of myemp%rowtype; 
myemp_rd myemp_tab; 
begin 
 open myemp_cur; 
 loop 
 fetch myemp_cur bulk collect into myemp_rd limit 20; 
 for i in 1..myemp_rd.count loop 
  dbms_output.put_line('姓名：'||myemp_rd(i).ename); 
 end loop; 
 exit when myemp_cur%notfound; 
 end loop; 
end; 

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