我有一个用 PDF 文档填充 BLOB 变量的过程。我要做的是添加逻辑以仅在静态日期后的 60 天内显示 PDF 文档。见下文:
check_staticdate number(1);
function DisplayPDF (audit in number) RETURN blob is
person_id person.person_id%type;
z_lob blob;
blob_length NUMBER;
CURSOR getPDF(audit number) IS
select report
from report_table
where report_type = 'PDF'
and job_no = audit order by rec_no;
begin
/* Check Valid ID */
if not package.ValidID(person_id, check_only=>TRUE) then
return z_lob;
end if;
/* Here is the case statement.*/
select case
when exists
(
SELECT 'x' from table
where table_id = person_id
and trunc(sysdate) < trunc(table_static_date + 60)
)
then 1
else 0
end into check_staticdate
from dual;
if (check_staticdate = 0) then
return z_lob;
end if;
open getPDF(audit);
fetch getPDF into z_lob;
close getPDF;
return z_lob;
end DisplayPDF;
我收到的错误是:ORA-22275: invalid LOB locator specified.
我是 Oracle SQL 的新手,我不确定为什么我的 ValidID 检查通过返回 z_lob 起作用,但我的 case 语句却没有。
编辑:添加完整的错误堆栈
Failed to execute target procedure ORA-22275: invalid LOB locator specified
ORA-06512: at "SYS.WPG_DOCLOAD", line 51
ORA-06512: at "User.Package", line 733
ORA-06512: at line 33