/*

存儲過程

參數類型：

in 表示入參

out 表示出參

in out 表示既是入參又是出參

默認情況下是入參

注意： 存儲過程的參數數據類型不需要指定精度

*/

create or replace procedure pro_myjob(title in varchar2)

is

var_mytitle jobs.job_title%type;

begin

select j.job_title into var_mytitle from jobs j where j.job_id=title;

dbms_output.put_line('工種:'||var_mytitle);

exception

when no_data_found then

raise_application_error(-20000,'no data found');

end;

create or replace procedure sp_insertJobs(p_id varchar2,p_title varchar2,p_salarymin number,p_salarymax number)

is

begin

insert into jobs values(p_id,p_title,p_salarymin,p_salarymax);

commit;

end;

--出參---

create or replace procedure sp_myjobForOut(p_title in varchar2, p_errMsg out varchar2)

as

var_mySalary jobs.max_salary%type;

--var_mySalary number(10);

begin

select j.max_salary into var_mySalary from jobs j where j.job_id=p_title;

dbms_output.put_line('最高薪水:'||var_mytitle);

exception

when no_data_found then

p_errMsg:='沒有'||p_title||'工號對應的數據';

when too_many_rows then

p_errMsg:=p_title||'工號對應的數據過多';

when others then

p_errMsg:='不確定的錯誤';

end;

--存儲過程調用-----

declare

var_err varchar2(200);

begin

dbms_output.put_line('bef'||var_err);

sp_myjobForOut('AD_PREwS',var_err);

dbms_output.put_line('af'||var_err);

end;

--參數 in out-----

create or replace procedure sp_myjobintout(p_msg in out varchar2)

is

v_msg varchar2(200);

begin

select j.max_salary into v_msg from jobs j where j.job_id=p_msg;

p_msg:='最高薪水:'||v_msg;

exception

when no_data_found then

p_msg:='沒有工號對應的數據';

when too_many_rows then

p_msg:='工號對應的數據過多';

when others then

p_msg:='不確定的錯誤';

end;

declare

var_err varchar2(200):='AD_PRESs';

begin

dbms_output.put_line('bef'||var_err);

sp_myjobintout(var_err);

dbms_output.put_line('af'||var_err);

end;

select * from jobs

declare

var_msg varchar2(20);

begin

pro_myjob('AD_PRES2',var_msg);

dbms_output.put_line(var_msg);

end;

--存儲過程的查看-----

select * from user_source

where lower(name) = 'sp_myjobintout';

--刪除------

drop procedure sp_myjobintout

select * from jobs

--------------創建函數--------------------

select * from demo where did=1;

select substr(dname,3,3) from demo where did=1;

create or replace function f_demo(aid number) return varchar2

is

name1 varchar2(20);

begin

select dname into name1 from demo where did=aid;

return name1;

end;

-------------調用-----

declare

name1 varchar2(20);

begin

--name1:=f_demo(aid=>3);

select f_demo(3) into name1? from dual;

dbms_output.put_line(name1);

end;

-----2 comandline

var name1 varchar2;--定義變量

exec :name1:=f_demo(1);---執行? :name1

--------------------------------------

create or replace function f_demo_row(aid number) return demo%rowtype

is

rowdata demo%rowtype;

begin

select * into rowdata from demo where did=aid;

return rowdata;

exception

when others then

dbms_output.put_line('error:'||sqlerrm);

end;

----------pl/sql調用------

declare

rowdata1 demo%rowtype;

begin

rowdata1:=f_demo_row(3);

dbms_output.put_line(rowdata1.did||'? '||rowdata1.dname);

end;

-------------------包------------

create or replace package pkg_t2

is

procedure p_demo(aid in number,aname in out varchar2);

function f_demo(aid number) return varchar2;

function f_demo(aname varchar2) return demo%rowtype;

end pkg_t2;

---包體--------

create or replace package body pkg_t2

is

procedure p_demo(aid in number,aname in out varchar2)

is

name1 varchar2(10);

begin

select dname into name1 from demo where did=aid;

aname:=name1;

end p_demo;

function f_demo(aid number) return varchar2

is

name1 varchar2(20);

begin

select dname into name1 from demo where did=aid;

return name1;

end f_demo;

function f_demo(aname varchar2) return demo%rowtype-- ref

is

rowdata demo%rowtype;

begin

select * into rowdata from demo where dname=aname;

return rowdata;

exception

when others then

dbms_output.put_line('error:'||sqlerrm);

end;

end pkg_t2;

------------調用-----------

pkg_t2.f_demo(aname=>'sss')

------------包 與 游標-----------------

create or replace package pkg_cur is

type my_cur_type is ref cursor;

cursor mycur return jobs%rowtype;

procedure sp_getdata(p_sql varchar2,p_cursor in out my_cur_type);

end pkg_cur;

create or replace package body pkg_cur is

cursor mycur return jobs%rowtype is select * from jobs;

procedure sp_getdata(p_sql varchar2,p_cursor in out my_cur_type)

as

begin

open p_cursor for p_sql;

end sp_getdata;

end pkg_cur;

declare

my_cur pkg_cur.my_cur_type;

rowdata jobs%rowtype;

begin

-- my_cur:=pkg_cur.mycur;

open pkg_cur.mycur;

loop

fetch pkg_cur.mycur into rowdata;

exit when pkg_cur.mycur%notfound;

dbms_output.put_line('did:'||rowdata.job_id||'?? dname:'||rowdata.job_title);

end loop;

close pkg_cur.mycur;

end;

select * from jobs

create or replace procedure sp_getdata(p_sql varchar2,p_cursor in out pkg_cur.my_cur_type)

as

begin

open p_cursor for p_sql;

end;

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