STRING_AGG gives wrong output for string values - case

Question

I am executing a query that will fetch me the name of the doctor,the total number of patients that visited the doctor, the number of offices he went, based on the number of offices he went List out the name of the offices
The query is as follows:
SELECT DOCTOR_WORK.user_label AS "USER_LABEL",
-- COUNT(DOCTOR_WORK.WEEKEND_WORKING),
COUNT(DOCTOR_WORK.CONSULT_ID) AS "PATIENT_COUNT",
count(DISTINCT(DOCTOR_WORK.OFFICE_ID)) AS "OFFICES_DOCTOR_WORKED",
STRING_AGG(CASE
WHEN (DOCTOR_WORK.OFFICE_ID)=4 THEN 'HQ'
WHEN (DOCTOR_WORK.OFFICE_ID)=5 THEN 'TCM'
WHEN (DOCTOR_WORK.OFFICE_ID)=6 THEN 'TCD'
WHEN (DOCTOR_WORK.OFFICE_ID)=7 THEN 'SCM'
WHEN (DOCTOR_WORK.OFFICE_ID)=8 THEN 'SSAAC'
ELSE 'No branch assigned. Check with Admin'
END,',') AS "OFFICE_DOCTOR_WORKED_LIST"
FROM
(
SELECT
a.CONSULT_DATE,
YEAR(a.CONSULT_DATE),
MONTHNAME(a.CONSULT_DATE) AS "Month",
DAYNAME(a.entered_date)AS "Day",
CASE
WHEN a.OFFICE_ID=7 THEN 'WORKING'
WHEN a.OFFICE_ID!=7 THEN
CASE when DAYNAME(a.consult_date) in ('FRIDAY','SATURDAY') THEN 'WEEKEND' ELSE 'WORKING' END
END AS "WEEKEND_WORKING",
a.CONSULT_ID,
a.PATIENT_NAME,
a.DOCTORS_ID,
b.USER_LABEL,
a.DEPARTMENT_ID,
c.DEPARTMENT_NAME,
a.OFFICE_ID,
d.OFFICE_NAME
FROM
DOCTOR_CONSULT a
INNER JOIN VIEW_USER_SETUP b
ON (a.DOCTORS_ID=b.USER_ID)
INNER JOIN DEPARTMENT_SETUP c
ON (a.DEPARTMENT_ID=c.DEPARTMENT_ID)
INNER JOIN OFFICE_DETAILS d
ON (a.OFFICE_ID=d.OFFICE_ID)
WHERE
a.CONSULT_DATE
BETWEEN '2022-12-30' AND '2023-01-10'
AND
b.ACTIVE_STATUS='Y'
AND
d.ACTIVE_STATUS='Y'
AND
b.USER_LABEL NOT IN('Emergency Room','General Doctor','General Doctor Oph')
AND b.USER_ID=318
ORDER BY a.consult_date
) AS "DOCTOR_WORK"
WHERE
DOCTOR_WORK.WEEKEND_WORKING LIKE 'WORKING'
GROUP BY (DOCTOR_WORK.user_label);
The output that i am getting is
USER_LABEL PATIENT _COUNT OFFICE_DOCTOR_WORKED OFFICE_DOCTOR_WORKED_LIST
---------------------------------------------------------------------------------------
Doc A 98 4 SCM,SCM,TCM,TCM,.....
The above, the 4th column will display the data based on the count of patient.
The output that i require is
USER_LABEL PATIENT _COUNT OFFICE_DOCTOR_WORKED OFFICE_DOCTOR_WORKED_LIST
---------------------------------------------------------------------------------------
Doc A 98 4 SCM,TCM,SSAC,HQ
The part of the sql code that i have issue is
STRING_AGG(CASE
WHEN (DOCTOR_WORK.OFFICE_ID)=4 THEN 'HQ'
WHEN (DOCTOR_WORK.OFFICE_ID)=5 THEN 'TCM'
WHEN (DOCTOR_WORK.OFFICE_ID)=6 THEN 'TCD'
WHEN (DOCTOR_WORK.OFFICE_ID)=7 THEN 'SCM'
WHEN (DOCTOR_WORK.OFFICE_ID)=8 THEN 'SSAAC'
ELSE 'No branch assigned. Check with Admin'
END,',') AS "OFFICE_DOCTOR_WORKED_LIST"
What is the change that is required in the SQL statement. is WITHIN GROUP required.If so how it must be entered in the above code. This is becuase i am getting error. The error type is "Incorrect Syntax"

Answer 1

I was able to solve this with the following code:
SELECT DOCTOR_WORK_LIST.USER_LABEL AS "USER_LABEL",
SUM(DOCTOR_WORK_LIST.PATIENT_COUNT) AS "PATIENT_COUNT",
SUM(DOCTOR_WORK_LIST.OFFICES_DOCTOR_WORKED) AS "COUNT_OFFICES_DOCTOR_WORKED",
STRING_AGG(CASE
WHEN DOCTOR_WORK_LIST.OFFICE_DOCTOR_WORKED_LIST LIKE 'HQ' THEN 'HeadQuarters-MultiSpeciality'
WHEN DOCTOR_WORK_LIST.OFFICE_DOCTOR_WORKED_LIST LIKE 'TCM' THEN 'Tahreer Camp-MultiSpeciality'
WHEN DOCTOR_WORK_LIST.OFFICE_DOCTOR_WORKED_LIST LIKE 'TCD' THEN 'Tahreer Camp-Dental'
WHEN DOCTOR_WORK_LIST.OFFICE_DOCTOR_WORKED_LIST LIKE 'SCM' THEN 'Summod Camp-MultiSpeciality'
WHEN DOCTOR_WORK_LIST.OFFICE_DOCTOR_WORKED_LIST LIKE 'SSAAC'THEN 'Sheikh Salem Al Ali Camp'
ELSE 'No branch assigned. Check with Admin'
END,', ') AS "OFFICES_DOCTOR_WORKED_LIST"
FROM
(
SELECT DOCTOR_WORK.user_label AS "USER_LABEL",
COUNT(DOCTOR_WORK.CONSULT_ID) AS "PATIENT_COUNT",
count(DISTINCT(DOCTOR_WORK.OFFICE_ID)) AS "OFFICES_DOCTOR_WORKED",
CASE
WHEN (DOCTOR_WORK.OFFICE_ID)=4 THEN 'HQ'
WHEN (DOCTOR_WORK.OFFICE_ID)=5 THEN 'TCM'
WHEN (DOCTOR_WORK.OFFICE_ID)=6 THEN 'TCD'
WHEN (DOCTOR_WORK.OFFICE_ID)=7 THEN 'SCM'
WHEN (DOCTOR_WORK.OFFICE_ID)=8 THEN 'SSAAC'
ELSE 'No branch assigned. Check with Admin'
END AS "OFFICE_DOCTOR_WORKED_LIST"
FROM
(
SELECT
a.CONSULT_DATE,
YEAR(a.CONSULT_DATE),
MONTHNAME(a.CONSULT_DATE) AS "Month",
DAYNAME(a.entered_date)AS "Day",
CASE
WHEN a.OFFICE_ID=7 THEN 'WORKING'
WHEN a.OFFICE_ID!=7 THEN
CASE when DAYNAME(a.consult_date) in ('FRIDAY','SATURDAY') THEN 'WEEKEND' ELSE 'WORKING' END
END AS "WEEKEND_WORKING",
a.CONSULT_ID,
a.PATIENT_NAME,
a.DOCTORS_ID,
b.USER_LABEL,
a.DEPARTMENT_ID,
c.DEPARTMENT_NAME,
a.OFFICE_ID,
d.OFFICE_NAME
FROM
DOCTOR_CONSULT a
INNER JOIN VIEW_USER_SETUP b
ON (a.DOCTORS_ID=b.USER_ID)
INNER JOIN DEPARTMENT_SETUP c
ON (a.DEPARTMENT_ID=c.DEPARTMENT_ID)
INNER JOIN OFFICE_DETAILS d
ON (a.OFFICE_ID=d.OFFICE_ID)
WHERE
a.CONSULT_DATE
BETWEEN CURRENT_DATE AND CURRENT_DATE
AND
b.ACTIVE_STATUS='Y'
AND
d.ACTIVE_STATUS='Y'
AND
b.USER_LABEL NOT IN('Emergency Room','General Doctor','General Doctor Oph')
-- AND b.USER_ID=318
ORDER BY a.consult_date
) AS "DOCTOR_WORK"
WHERE
DOCTOR_WORK.WEEKEND_WORKING LIKE 'WORKING'
GROUP BY
DOCTOR_WORK.user_label,
DOCTOR_WORK.OFFICE_ID
) AS "DOCTOR_WORK_LIST"
GROUP BY(DOCTOR_WORK_LIST.USER_LABEl);