1、建立儲存過程has_permission：
create or replace procedure has_permission(contentid in varchar2,contenttype in number,privilege in number,userid in number,returncode out number)
ismaxprivilege number default -1; --最大許可權級別
dirid varchar2(50);--檔案的目錄id
stdtype number;--標準圖/標準工具/標準模組 型別
begin
--查詢使用者最大的許可權資料--
--如果是 預審庫檔案
if contenttype =1 then
select max(f.dir_id) into dirid from sj_pre_file f where f.id = contentid;
select max(d.privilege) into maxprivilege from sj_dac d,sys_user_role ur
where d.owner_id = ur.role_id
and d.owner_type = 3
and ur.user_id = userid
and (
(d.content_type= 2 and d.content_id in (select j.id from sj_pre_category j start with j.id = dirid connect by prior j.parent_id = j.id))
or(d.content_type= contenttype and d.content_id = contentid)
);end if;
--如果是 預審庫目錄
if contenttype =2 then
select max(d.privilege) into maxprivilege from sj_dac d,sys_user_role ur
where d.owner_id = ur.role_id
and d.owner_type = 3
and ur.user_id = userid
and d.content_type= contenttype
and d.content_id in (select j.id from sj_pre_category j start with j.id = contentid connect by prior j.parent_id = j.id);
end if;
--如果是 成果庫檔案
if contenttype =3 then
select max(f.dir_id) into dirid from sj_lib_file f where f.id = contentid;
select max(d.privilege) into maxprivilege from sj_dac d,sys_user_role ur
where d.owner_id = ur.role_id
and d.owner_type = 3
and ur.user_id = userid
and (
(d.content_type = 4 and d.content_id in (select j.id from sj_lib_category j start with j.id = dirid connect by prior j.parent_id = j.id))
or(d.content_type = contenttype and d.content_id = contentid )
);end if;
--如果是 成果庫目錄
if contenttype =4 then
select max(d.privilege) into maxprivilege from sj_dac d,sys_user_role ur
where d.owner_id = ur.role_id
and d.owner_type = 3
and ur.user_id = userid
and d.content_type= contenttype
and d.content_id in (select j.id from sj_lib_category j start with j.id = contentid connect by prior j.parent_id = j.id);
end if;
--如果是 標準庫目錄
if contenttype =6 then
select max(d.privilege) into maxprivilege from sj_dac d,sys_user_role ur
where d.owner_id = ur.role_id
and d.owner_type = 3
and ur.user_id = userid
and d.content_type= contenttype
and d.content_id in (select j.id from sj_std_type j start with j.id = contentid connect by prior j.parent_id = j.id);
end if;
--如果是 標準圖
if contenttype =7 then
select max(chart.type) into stdtype from sj_std_chart chart where chart.id = contentid;
select max(d.privilege) into maxprivilege from sj_dac d,sys_user_role ur
where d.owner_id = ur.role_id
and d.owner_type = 3
and ur.user_id = userid
and(
(d.content_type= 6 and d.content_id in (select j.id from sj_std_type j start with j.id = stdtype connect by prior j.parent_id = j.id))
or(d.content_type= contenttype and d.content_id = contentid)
);end if;
--如果是 標準工具
if contenttype =8 then
select max(tools.type) into stdtype from sj_std_tools tools where tools.id = contentid;
select max(d.privilege) into maxprivilege from sj_dac d,sys_user_role ur
where d.owner_id = ur.role_id
and d.owner_type = 3
and ur.user_id = userid
and(
(d.content_type= 6 and d.content_id in (select j.id from sj_std_type j start with j.id = stdtype connect by prior j.parent_id = j.id))
or(d.content_type= contenttype and d.content_id = contentid)
);end if;
--如果是 標準模組
if contenttype =9 then
select max(module.type) into stdtype from sj_std_module module where module.id = contentid;
select max(d.privilege) into maxprivilege from sj_dac d,sys_user_role ur
where d.owner_id = ur.role_id
and d.owner_type = 3
and ur.user_id = userid
and(
(d.content_type= 6 and d.content_id in (select j.id from sj_std_type j start with j.id = stdtype connect by prior j.parent_id = j.id))
or(d.content_type= contenttype and d.content_id = contentid)
);end if;
--判斷使用者是否存在指定的許可權（1：存在，0：不存在）
if maxprivilege >= privilege then
returncode := 1;
end if;
if maxprivilege < privilege then
returncode := 0;
end if;
end has_permission;
2、呼叫儲存過程：
declare
returncode number;
begin
-- call the procedure
has_permission('6567',2,1,19791,returncode);
dbms_output.put_line('returncode=' || returncode);
end;
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