- SQL code
declare cursor e is select * from emp ; e_row emp%rowtype; begin open e ; loop --用这种方式可以 exit when e%notfound; fetch e into e_row ; dbms_output.put_line( rpad(e_row.ename , 15 , ' ') || ' ' || e_row.sal); end loop; close e; end;
- SQL code
declare cursor e is select * from emp ; e_row emp%rowtype; begin open e ; while e%found loop --这种方式就没用，控制台不打印 fetch e into e_row ; dbms_output.put_line( rpad(e_row.ename , 15 , ' ') || ' ' || e_row.sal); end loop; close e; end;
------解决方案--------------------
declare
cursor e is select * from emp ;
e_row emp%rowtype;
begin
open e ;
fetch e into e_row ;
while e%found loop --这种方式就没用，控制台不打印
dbms_output.put_line( rpad(e_row.ename , 15 , ' ') || ' ' || e_row.sal);
fetch e into e_row ;
end loop;
close e;
end;