|
楼主 |
发表于 2011-10-11 23:43
|
显示全部楼层
2011-10-06
作者:Steven Feuerstein
我以HR用户登录并且执行下列语句:
CREATE OR REPLACE PACKAGE plch_pkg
IS
g_stuff VARCHAR2 (10) := 'Stuff';
PROCEDURE show_stuff;
END;
/
CREATE OR REPLACE PACKAGE BODY plch_pkg
IS
PROCEDURE show_stuff
IS
BEGIN
DBMS_OUTPUT.put_line (g_stuff);
END;
END;
/
BEGIN
plch_pkg.show_stuff;
END;
/
CREATE OR REPLACE PACKAGE plch_pkg
IS
g_new_stuff VARCHAR2 (10) := 'NewStuff';
END;
/
BEGIN
DBMS_OUTPUT.put_line (plch_pkg.g_new_stuff);
END;
/
下列的哪个选项正确反映了在执行上述两个匿名块之后, 我屏幕上的显示内容?
(A)
Stuff
NewStuff
(B)
First "Stuff" is displayed on the screen. Then I will see this error:
ORA-04063: package body "HR.PLCH_PKG" has errors
ORA-06508: PL/SQL: could not find program unit being called: "HR.PLCH_PKG"
(C)
Stuff
这道题考的是在修改包头,不修改包体的情况下,对包头变量的引用情况。
|
|