How to properly use an oracle in the request, the "If" and "LIKE" condition - sql

Question

i need help with the code, i have two pieces of code that write two variables: v_responsible_job and v_responsible.I would like to combine these queries into one and add a condition if.
If the answer to this query is "ABC", then the first query must be completed, and if not,the second query:
https://dbfiddle.uk/?rdbms=oracle_18&fiddle=4ce28fad7e33f00c5538e49943ae7dechere is the demo data
SELECT NAME FROM data_separators WHERE id = way.DS_ID
example answer:
NAME
ABC Info
Scool
offise
ABC SHOP
first call :
BEGIN
SELECT full_name, job INTO v_responsible, job_id
FROM physical_persons
WHERE id IN (SELECT physical_person
FROM data_separators WHERE id = way.DS_ID) AND rownum = 1;
SELECT name
INTO v_responsible_job
FROM jobs
WHERE id = job_id AND
rownum = 1;
if v_responsible_job is not null then
if length(v_responsible_job) > 0 then
v_responsible_job := ', '|| v_responsible_job;
end if;
end if;
EXCEPTION WHEN OTHERS THEN
v_responsible_job := '';
END;
second call :
BEGIN
SELECT full_name, job
INTO v_responsible, job_id
FROM physical_persons
WHERE id IN (SELECT RESPONSIBLE
FROM ADRESSES
WHERE name = p1.name) AND
rownum = 1;
SELECT name
INTO v_responsible_job
FROM jobs
WHERE id = job_id AND
rownum = 1;
if v_responsible_job is not null then
if length(v_responsible_job) > 0 then
v_responsible_job := ', '|| v_responsible_job;
end if;
end if;
EXCEPTION WHEN OTHERS THEN
v_responsible_job := '';
END;
my varianr answer , but his don't work(
BEGIN
select count(*) into v_count_word FROM data_separators WHERE id = way.DS_ID and NAME LIKE '%ABC%';
select count(RESPONSIBLE) into v_count_respon FROM ADRESSES WHERE name = p1.name;
if v_count_word > 0 then
SELECT full_name, job INTO v_responsible, job_id FROM physical_persons WHERE id IN (SELECT physical_person FROM data_separators WHERE id = way.DS_ID) AND rownum = 1;
SELECT name INTO v_responsible_job FROM jobs WHERE id = job_id AND rownum = 1;
if v_responsible_job is not null then
if length(v_responsible_job) > 0 then
v_responsible_job := ', '|| v_responsible_job;
end if;
end if;
end if;
if v_count_respon > 0 and v_count_word = 0 then
SELECT full_name, job INTO v_responsible, job_id FROM physical_persons WHERE id IN (SELECT RESPONSIBLE
FROM ADRESSES
WHERE name = p1.name) AND rownum = 1;
SELECT name INTO v_responsible_job FROM jobs WHERE id = job_id AND rownum = 1;
if v_responsible_job is not null then
if length(v_responsible_job) > 0 then
v_responsible_job := ', '|| v_responsible_job;
end if;
end if;
end if;
if v_count_respon = 0 and v_count_word = 0 then
SELECT full_name, job INTO v_responsible, job_id FROM physical_persons WHERE id IN (SELECT physical_person FROM data_separators WHERE id = way.DS_ID) AND rownum = 1;
SELECT name INTO v_responsible_job FROM jobs WHERE id = job_id AND rownum = 1;
if v_responsible_job is not null then
if length(v_responsible_job) > 0 then
v_responsible_job := ', '|| v_responsible_job;
end if;
end if;
end if;
EXCEPTION WHEN OTHERS THEN
v_responsible_job := '-';
END;

Answer 1

Combine the first two queries using EXISTS and then use LISTAGG to aggregate the values:
DECLARE
v_responsible_jobs VARCHAR2(4000);
BEGIN
SELECT LISTAGG( name, ',' ) WITHIN GROUP ( ORDER BY name )
INTO v_responsible_jobs
FROM jobs j
WHERE EXISTS(
SELECT 1
FROM physical_persons pp
WHERE pp.job_id = j.job_id
AND id IN (
SELECT physical_person
FROM data_separators
WHERE id = way.DS_ID
)
);
END;
/
An other way would be to use BULK COLLECT INTO a collection data type and then to iterate over the collection concatenating the string; but that is more complicated than using LISTAGG to do all the work for you.