I'm trying to get a top 1 returned for each code in this query but this is giving me syntax errors. Any ideas what I can do?
SELECT d.doc_no,
d.doc_short_name,
d.doc_name,
r.revision_code,
r.revision,
r.description,
dtg.group_name,
(SELECT top 1 di.index_user_id
FROM document_instance
WHERE doc_no = d.doc_no
ORDER BY entry_time DESC) AS 'last indexed by'
FROM documents d
LEFT JOIN document_revision r ON r.doc_no = d.doc_no
LEFT JOIN document_instance di ON di.doc_no = d.doc_no
LEFT JOIN document_type_group dtg ON dtg.doc_no = d.doc_no
Assuming Sybase ASE, the top # clause is only supported in derived tables, ie, it's not supported in correlated sub-queries like you're attempting.
Also note that order by is not supported in any sub-queries (derived table or correlated).
If I'm reading the query correctly, you want the index_user_id for the record with the max(entry_time); if this is correct, and assuming a single record is returned for a given doc_no/entry_time combo, you could try something like:
SELECT d.doc_no,
d.doc_short_name,
d.doc_name,
r.revision_code,
r.revision,
r.description,
dtg.group_name,
(SELECT d2.index_user_id
FROM document_instance d2
WHERE d2.doc_no = d1.doc_no
and d2.entry_time = (select max(d3.entry_time)
from document_instance d3
where d3.doc_no = d1.doc_no)
) as 'last indexed by'
FROM documents d
LEFT JOIN document_revision r ON r.doc_no = d.doc_no
LEFT JOIN document_instance d1 ON d1.doc_no = d.doc_no
LEFT JOIN document_type_group dtg ON dtg.doc_no = d.doc_no
Related
I have a large query that I have pasted parts of below.
I am wanting to use the result of the first join in my second join.
What I am trying to do get the last session that has a lead_conversion then I am getting all sessions in between then and the current row
This is the part I am struggling with
left join (
select ss.id, ss.session_start, ss.lead_id
from sessions ss
inner join lead_conversions inner_lc on inner_lc.session_id = ss.id
) prev_lc
on prev_lc.lead_id = lc.lead_id
and prev_lc.session_start::TIMESTAMP < s.session_start::TIMESTAMP
left join cte_sessions reset_prev_sess
on reset_prev_sess.lead_id = lc.lead_id
and reset_prev_sess.session_start::TIMESTAMP <= s.session_start::TIMESTAMP
and (
prev_lc.session_start::TIMESTAMP IS NULL
OR
reset_prev_sess.session_start::TIMESTAMP > prev_lc.session_start::TIMESTAMP
)
my issue is I cant just fetch the last prev_lc and I cant seem to use max(prev_lc.session_start)
I have tried grouping in first select and using max but this does not work as I believe this is ran before the on
left join (
select max(ss.session_start) as session_start, max(ss.lead_id) as lead_id
from sessions ss
inner join lead_conversions inner_lc on inner_lc.session_id = ss.id
group by inner_lc.id
) prev_lc on prev_lc.lead_id = lc.lead_id
I have also tried using max in the second join but this give the error
SQL compilation error: Invalid aggregate function in ON clause [MAX(CAST(PREV_LC.SESSION_START AS TIMESTAMP_NTZ(9)))]
left join cte_sessions reset_prev_sess
on reset_prev_sess.lead_id = lc.lead_id
and reset_prev_sess.session_start::TIMESTAMP <= s.session_start::TIMESTAMP
and (
prev_lc.session_start::TIMESTAMP IS NULL
OR
reset_prev_sess.session_start::TIMESTAMP > max(prev_lc.session_start::TIMESTAMP)
)
any help with this would be very appreciated
Thank you
if I understand correctly you are looking for to join with the last session start,so what you can do is to order by startsession in your subquery and limit to 1 record:
left join (
select ss.id, ss.session_start, ss.lead_id
from sessions ss
inner join lead_conversions inner_lc on inner_lc.session_id = ss.id
order by ss.session_start desc
limit 1
) prev_lc
the rest of query stays untouched.
So I have found a solution for this if any one comes across this. I ended up just rethinking how I go about it.
I ended up adding a row number for each conversion
with cte_sessions as (
select
s.id
,s.lead_id
,s.session_start::TIMESTAMP as session_start
,CASE WHEN MAX(lc.id) IS NOT NULL
then ROW_NUMBER() over (partition by s.lead_id, (CASE WHEN
MAX(lc.id) IS NOT NULL then 1 else 0 end)
order by s.session_start
)
END as conversion_row
from sessions s
left join lead_conversions lc on lc.session_id = s.id
group by s.id, s.session_start, s.lead_id, s.project_id, s.crawler_id
order by s.session_start
)
The I just did this in the join
left join cte_sessions prev_lc on prev_lc.lead_id = lc.lead_id and prev_lc.conversion_row = s.conversion_row - 1
I am working on SQL query which should return the list of Managers and the staff who reports to them.
Unfortunately there is no separate table for Employee or Staff but a single 'resource' table called ahsresources.
The managers are identified with a relation called 'C0'.
Even after trying various Joins, I am unable to extract the list. The idea is that a manager will run the report to see his reportees, as well as those staff who report to his own reportees
Example -
Now, if lets say HDY is running the query, then its should return him the below result
Below is the query I have created, but for the matter of understanding the issue, you can use the above example.
select a.description as manager1,a.rel_value as MGID,a.resource_id as Reportee1_MGR2,r.name,a.date_to as date, r.date_to,a1.resource_id as MG3ID,r1.name as Rep3Name,
a2.resource_id as MG4ID,r2.name as Rep4Name
from ahsrelvalue a
LEFT OUTER JOIN ahsresources r
ON r.resource_id = a.resource_id and r.client = a.client and a.date_to='12/31/2099'
LEFT OUTER JOIN ahsrelvalue a1
ON a1.rel_Value = a.resource_id and a1.client = a.client and a1.date_to = '12/31/2099'
LEFT OUTER JOIN ahsrelvalue a2
ON a2.rel_Value = a1.resource_id and a2.client = a1.client and a2.date_to = '12/31/2099'
LEFT OUTER JOIN ahsresources r1
ON r1.resource_id = a1.resource_id and r1.client = a1.client and a1.date_to='12/31/2099'
LEFT OUTER JOIN ahsresources r2
ON r2.resource_id = a2.resource_id and r2.client = a2.client and a2.date_to='12/31/2099'
where a.rel_Value = '$?resid' and a.rel_attr_id='C0' and r.date_to = '12/31/2099' and r1.date_to ='12/31/2099'
and r.status !='C' and r1.status!='C' and r2.status!='C'
In SQL Server, you can use a recursive query to traverse this hierarchical dataset:
with cte as (
select t.* from mytable where managerID = 6
union all
select t.*
from cte c
inner join mytable t on t.managerID = c.staffID
)
select * from cte
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
Still trying to get used to writing queries and I've ran into a problem.
Select count(region)
where (regionTable.A=1) in
(
select jxn.id, count(jxn.id) as counts, regionTable.A
from jxn inner join
V on jxn.id = V.id inner join
regionTable on v.regionID = regionTable.regionID
group by jxn.id, regionTable.A
)
The inner query gives an ID number in one column, the amount of times they appear in the table, and then a bit attribute if they are in region A. The outer query works but the error I get is incorrect syntax near the keyword IN. Of the inner query, I would like a number of how many of them are in region A
You must specify table name in query before where
Select count(region)
from table
where (regionTable.A=1) in
And you must choose one of them.
where regionTable.A = 1
or
where regionTable.A in (..)
Your query has several syntax errors. Based on your comments, I think there is no need for a subquery and you want this:
select jxn.id, count(jxn.id) as counts, regionTable.A
from jxn inner join
V on jxn.id = V.id inner join
regionTable on v.regionID = regionTable.regionID
where regionTable.A = 1
group by jxn.id, regionTable.A
which can be further simplified to:
select jxn.id, count(jxn.id) as counts
, 1 as A --- you can even omit this line
from jxn inner join
V on jxn.id = V.id inner join
regionTable on v.regionID = regionTable.regionID
where regionTable.A = 1
group by jxn.id
You are getting the error because of this line:
where (regionTable.A=1)
You cannot specify a condition in a where in clause, it should only be column name
Something like this may be what you want:
SELECT COUNT(*)
FROM
(
select jxn.id, count(jxn.id) as counts, regionTable.A
from
jxn inner join
V on jxn.id = V.id inner join
regionTable on v.regionID = regionTable.regionID
group by jxn.id, regionTable.A
) sq
WHERE sq.a = 1
SELECT MD.*, Contact.FirstName
FROM MerchantData MD
JOIN Merchant M ON M.MerchID = MD.MerchID
JOIN (SELECT TOP 1 * FROM Location WHERE Location.BusID = MD.BusID) L ON L.BusID=MD.BusID
AND L.Deleted = 0
JOIN Contact ON Contact.ContactID = L.PrincipalID
I am using SQLSERVER 2008 and trying to write this SQL statement. There is some times multiple locations for a busid and I want to join in only the first found. I am getting an error on the part "Location.BusID = MD.BusID" as MD.BusID cannot be bound. Is it possible to use the MD table in the nested select statment in this join or is there another way of accomplishing this?
I am contiplating putting the data using nested querys in the column list to grab the contact data driectly there.
It would be simpler I think to have a subquery of the full result set:
SELECT MD.*, Contact.FirstName
FROM MerchantData MD
JOIN Merchant M ON M.MerchID = MD.MerchID
JOIN (SELECT BusID, MAX(PrincipalID)
FROM Location
WHERE Deleted = 0
GROUP BY BusID) L ON L.BusID=MD.BusID
JOIN Contact ON Contact.ContactID = L.PrincipalID
You still get one record per BusID in the JOIN but it's not correlated.
SELECT MD.*, Contact.FirstName
FROM MerchantData MD
JOIN Merchant M ON M.MerchID = MD.MerchID
CROSS APPLY (SELECT TOP 1 * FROM Location WHERE BusID = MD.BusID AND DELETED = 0) L
JOIN Contact ON Contact.ContactID = L.PrincipalID
This is a case of the "top n per group" problem. This question will guide you:
SQL Server query select 1 from each sub-group
You'll want to be doing something like this:
SELECT MD.* ,
Contact.FirstName
FROM MerchantData MD
JOIN Merchant M ON M.MerchID = MD.MerchID
JOIN ( select * ,
seq = rank() over( partition by BusID order by BusID , ... )
from Location
where L.Deleted = 0
) L on L.BusID = MD.BusID
and seq = 1
JOIN Contact ON Contact.ContactID = L.PrincipalID
The virtual table expression should return at most 1 Location per BusID (0 if the BusID has no non-deleted Locations).
To try and isolate out the error I would try. See if it can match Location.BusID = MD.BusID.
SELECT MD.*, Contact.FirstName
FROM MerchantData MD
JOIN Merchant M ON M.MerchID = MD.MerchID
JOIN Location On Location.BusID = MD.BusID
You do not use the * so use
SELECT TOP 1 Location.BusID FROM Location WHERE Location.BusID = MD.BusID
Once you get the syntax working.
You do know that once you get this working it will only match if the "first" row and then check if it is deleted. The problem is that without an order by the "first" row is arbitrary. Even with a clustered index on a table there is no guaranteed sort without an order by clause. To get a repeatable answer you need a sort. But if you are sorting and only want the top row then a MAX or MIN and a group be more straight forward.
If you want just business that have one or more deleted locations then the following should work but you need to break out the columns for the group by. If two deleted locations have differenct contact name then it will report each. So, this may not be what you are looking for.
SELECT MD.col1, MD.col2, Contact.FirstName
FROM MerchantData MD
JOIN Merchant M ON M.MerchID = MD.MerchID
JOIN Location L
ON L.BusID = MD.BusID
AND L.Deleted = 0
JOIN Contact ON Contact.ContactID = L.PrincipalID
GROUP BY MD.col1, MD.col2, Contact.FirstName