Attempting to build SQL with INNER JOIN's. The INNER JOIN's work ok, now I need to add the MAX() function for limiting the rows to just most recent. Added this INNER JOIN client_diagnosis_record ON SELECT cr.PATID, cr.date_of_diagnosis, cr.most_recent_diagnosis... Received this SQL code error, need some help, I'm sure it a simple oversight but my eyes are getting dim from looking so long...
Syntax error: [SQLCODE: <-4>:
SQLCODE: <-4>:<A term expected, beginning with one of the following: identifier, constant, aggregate, %ALPHAUP, %EXACT, %MVR, %SQLSTRING, %
[%msg: < The SELECT list of the subquery
SELECT pd.patient_name,
cr.PATID,
cr.date_of_diagnosis,
cr.EPISODE_NUMBER,
ce.diagnosing_clinician_value,
ce.data_entry_user_name,
most_recent_diagnosis
FROM client_diagnosis_record cr
INNER JOIN patient_current_demographics pd ON cr.patid = pd.patid
INNER JOIN client_diagnosis_entry ce ON ce.patid = pd.patid
AND cr.ID = ce.DiagnosisRecord
INNER JOIN client_diagnosis_record ON (SELECT cr.PATID,
cr.date_of_diagnosis,
cr.most_recent_diagnosis
FROM ( SELECT patid,
date_of_diagnosis,
MAX(ID) AS most_recent_diagnosis
FROM client_diagnosis_record) cr
INNER JOIN RADplus_users ru ON ru.staff_member_id = ce.diagnosing_clinician_code
WHERE cr.PATID <> '1'
AND ce.diagnosis_status_value ='Active'
AND (ru.user_description LIKE '%SOA' OR ru.user_description LIKE '%OA')
GROUP BY cr.PATID
I tried to re-format you query and it seems your query syntax is not correct. You may try below query -
SELECT pd.patient_name,
cr.PATID,
cr.date_of_diagnosis,
cr.EPISODE_NUMBER,
ce.diagnosing_clinician_value,
ce.data_entry_user_name,
most_recent_diagnosis
FROM client_diagnosis_record cr
INNER JOIN (SELECT patid,
date_of_diagnosis,
MAX(ID) AS most_recent_diagnosis
FROM client_diagnosis_record
GROUP BY patid,
date_of_diagnosis) cr2 ON cr.PATID = cr2.PATID
AND cr.date_of_diagnosis = cr2.date_of_diagnosis
AND cr.ID = cr2.most_recent_diagnosis
INNER JOIN patient_current_demographics pd ON cr.patid = pd.patid
INNER JOIN client_diagnosis_entry ce ON ce.patid = pd.patid
AND cr.ID = ce.DiagnosisRecord
INNER JOIN RADplus_users ru ON ru.staff_member_id = ce.diagnosing_clinician_code
WHERE cr.PATID <> '1'
AND ce.diagnosis_status_value ='Active'
AND (ru.user_description LIKE '%SOA' OR ru.user_description LIKE '%OA')
GROUP BY cr.PATID