How to search for the email with attachments in iphone which should return the list of mails with attachments?

Question

Hi am new to iphone programming,in the app i want the emails which are having the attachments to show when we search for particular email sent by others in a list which should return the content of the attachment.can any one help me to solve this thanks in advance.

Answer 1

If you received character strings' variable value such as '56,34',
then you can get it as follows.
where regexp_instr( '56,34' , '(^|,)('||t.catid||')(,|$)') >= 1
Ex)
with
test_param as
(select '56' param from dual union all
select '34' from dual union all
select '56,34' from dual union all
select '5,344' from dual
,test_data as
(select 5 catid from dual union all
select 3 from dual union all
select 56 from dual union all
select 34 from dual union all
select 566 from dual union all
select 344 from dual
/* End of Data */
select p.param, t.catid
from test_data t, test_param p
where regexp_instr( p.param, '(^|,)('||t.catid||')(,|$)') >= 1
PARAM      CATID
56            56
34            34
56,34         56
56,34         34
5,344          5
5,344        344