You could do a count(*)
instead
declare
l_cnt integer;
begin
select count(*)
into l_cnt
from items
where id_referencia = :P2_REFERENCIA;
if( l_cnt >= 1 )
then
return true;
else
return false;
end if;
end;
If you really wanted to do an exists
, you'd do something like this. I don't know why you'd want to do this assuming that id_referencia
is the primary key of the table. But you could
declare
l_exists integer;
begin
begin
select 1
into l_exists
from dual
where exists( select 1
from items
where id_referencia = :P2_REFERENCIA );
exception
when no_data_found
then
l_exists := 0;
end;
if( l_exists = 1 )
then
return true;
else
return false;
end if;
end;
No. | Subject | Author | Date | Views |
---|---|---|---|---|
39 | APEX ADMIN PASSWORD 바꾸기 | admin | 2016.05.02 | 116 |
38 | Interactive Report | admin | 2016.05.07 | 118 |
37 | test | admin | 2016.05.11 | 123 |
36 | Oracle APEX 5.1.4 Installation | admin | 2018.04.17 | 135 |
35 | Delimiter | admin | 2016.04.29 | 141 |
34 | BOOLEAN SAMPLE | admin | 2016.05.11 | 147 |
33 | wwv_flow_files | admin | 2016.05.01 | 155 |
32 | TAP ( Main & Sub ) / Button 의 Switch | admin | 2016.04.28 | 166 |
31 | EXPORT & IMPORT | admin | 2016.05.01 | 174 |
30 | CREATE TABLESPACE | admin | 2016.04.28 | 177 |
29 | Captcha Test | admin | 2016.04.18 | 178 |
28 | Apex setup procedure | admin | 2016.04.28 | 182 |
» | use a validation function for an element in apex 5.0 | admin | 2018.05.19 | 209 |
26 | All Data DELETE from Table | admin | 2018.05.10 | 211 |
25 | Process | admin | 2018.05.05 | 218 |
24 | 3D Pie Chart | admin | 2016.05.17 | 222 |
23 | If you want to use EXISTS in a PL/SQL function returning BOOLEAN | admin | 2018.05.19 | 223 |
22 | eeeeee | admin | 2018.06.21 | 224 |
21 | How-To Document / Change a Logo in a Page Template | admin | 2016.04.16 | 226 |
20 | Change Admin PASSWORD | admin | 2018.07.31 | 232 |