package

Posted 2021-10-23 cyf18

package是由一个或多个porcedure/function组成的。

定义：

create or replace package 包名

is

procedure/function定义部分;--以分号作为间隔

end;

/

 

create or replace package body 包名

is

procedure/function开始到end结束;--以分号作为间隔

/

 

例如：

create or replace package user_pack

is

procedure addUser

(

useCode in number default user_seq.nextval,

user_name in varchar2 default ‘小明‘,

age in number default 20, 

user_birth_day in date default sysdate,

apple in number default 3

);

function getApple(userCode number)

return number;

end;

/

 

create or replace package body user_pack

is

procedure addUser

(

useCode in number default user_seq.nextval,

user_name in varchar2 default ‘小明‘,

age in number default 20, 

user_birth_day in date default sysdate,

apple in number default 3

)

is

begin

select apple into apple from t_user where user_code=userCode;

end;

function getApple(userCode number)

return number

is

apple number;

begin

  select apple into apple from t_user where user_code=userCode;

  return apple;

end;

/

 

查看package：desc user_pack;

 

调用package中的procedure/function：exec user_pack.getApple(3);

 

desc dbms_output;

 

查看package定义语句：select text from user_source where name=‘USER_PACK‘;

 

package body定义语句加密：

创建文件user_pack.sql，将package body定义语句复制到此文件中,

执行：wrap iname=user_pack.sql

执行后会生成一个user_pack.plb的文件，即加密后的文件

创建package body时，直接执行：@user_pack.plb