如何在Oracle，Sql Developer的另一个过程中调用过程？

Question

CREATE OR REPLACE PROCEDURE ShowShips3Task(
       p_Register IN ship.registry_country%TYPE,
       o_name OUT ship.ship_name%TYPE,
       o_capitan OUT  ship.captain_name%TYPE)
IS
   procedure showshipsDisp(
    o_cap out Ship.captain_name%type,
    o_dis out Ship.displacement%type)
    is
    begin
    Select Captain_name, Displacement
    into o_cap, o_dis
    from Ship Where Ship_name = 'Avrora';
    end;

BEGIN

  SELECT Ship_name , Captain_Name
  INTO o_name, o_capitan
  from  Ship WHERE registry_country LIKE p_register || '%';

END;

如何在另一个内部同时执行一个过程？

以及如何创建多值参数，意味着内部的第二个过程取决于第一个过程的参数？

Answer 1

在问题的示例中，嵌套过程仅被声明，而从未被调用。 要运行嵌套过程，必须在BEGIN和END语句之间进行调用：

BEGIN

  SELECT Ship_name , Captain_Name
  INTO o_name, o_capitan
  from  Ship WHERE registry_country LIKE p_register || '%';

  showshipsDisp(o_cap => ?
               ,o_dis => ?);

END;

问号应替换为适当的变量。