I need to get a state level count on number of services. For the purposes of this I only have two services. The first column is the states, the second column is the first services and the third column is the second service. What I am struggling with is to have the second and third column show up on the results in one query. Here is my code:
SELECT Distinct allstates.Name, count (data.StateName) as CareCase_Management_Services, count(data.StateName) Caregiver_Support_Services
From
(select distinct Name from USstate) allstates
Left Join
Client2017 data
on
allstates.Name = data.StateName and
data.FiscalYear = 2017 and
data.SrvstartCareCaseMgmtCode NOT IN('999','', '998') and
data.SrvstartCaregiverSuppCode NOT IN('999','', '998')
GROUP BY allstates.Name
ORDER BY allstates.Name ASC
I understand that you are looking to compute, for each state, the count of services that match certain criteria. There are two types of services, stored in two different columns.
If so, your query could be simplified using conditional aggregation :
SELECT
allstates.Name,
SUM(CASE WHEN c.SrvstartCareCaseMgmtCode NOT IN ('999', '', '998') THEN 1 ELSE 0 END) CareCase_Management_Services,
SUM(CASE WHEN c.SrvstartCaregiverSuppCode NOT IN ('999', '', '998') THEN 1 ELSE 0 END) Caregiver_Support_Services
FROM
(SELECT DISTINCT Name FROM USstate) s
LEFT JOIN Client2017 c ON s.Name = c.StateName AND c.FiscalYear = 2017
GROUP BY allstates.Name
With this technique, each service is counted according to its own logic ; when conditions are met, the record is counted in (1 is added to the SUM()), else it is ignored (+ 0).
NB : do you really have duplicated state names in USstate ? if no, you can replace subquery (SELECT DISTINCT Name FROM USstate) s with just USstate
Related
Hi I have a redshift table of articles that has a field on it that can contain many accounts. So there is a one to many relationship between articles to accounts.
However I want to create a new view where it lists the partner id's in one column and in another column a count of how many times the partner id appears in the articles table.
I've attempted to do this using regex and created a new redshift view, but am getting weird results where it doesn't always build properly. So one day it will say a partner appears 15 times, then the next 17, then the next 15, when the partner id count hasn't actually changed.
Any help would be greatly appreciated.
SELECT partner_id,
COUNT(DISTINCT id)
FROM (SELECT id,
partner_ids,
SPLIT_PART(partner_ids,',',i) partner_id
FROM positron_articles a
LEFT JOIN util.seq_0_to_500 s
ON s.i < regexp_count (partner_ids,',') + 2
OR s.i = 1
WHERE i > 0
AND regexp_count (partner_ids,',') = 0
ORDER BY id)
GROUP BY 1;
Let's start with some of the more obvious things and see if we can start to glean other information.
Next GROUP BY 1 on your outer query needs to be GROUP BY partner_id.
Next you don't need an order by in your INNER query and the database engine will probably do a better job optimizing performance without it so remove ORDER BY id.
If you want your final results to be ordered then add an ORDER BY partner_id or similar clause after your group by of your OUTER query.
It looks like there are also problems with how you are splitting a partnerid from partnerids but I am not positive about that because I need to understand your view and the data it provides to know how that affects your record count for partnerid.
Next your LEFT JOIN statement on the util.seq_0_to_500 I am pretty sure you can drop off the s.i = 1 as the first condition will satisfy that as well because 2 is greater than 1. However your left join really acts more like an inner join because you then exclude any non matches from positron_articles that don't have a s.i > 0.
Oddly then your entire join and inner query gets kind of discarded because you only want articles that have no commas in their partnerids: regexp_count (partner_ids,',') = 0
I would suggest posting the code for your util.seq_0_to_500 and if you have a partner table let use know about that as well because you can probably get your answer a lot easier with that additional table depending on how regexp_count works. I suspect regex_count(partnerids,partnerid) exampleregex_count('12345,678',1234) will return greater than 0 at which point you have no choice but to split the delimited strings into another table before counting or building a new matching function.
If regex_count only matches exact between commas and you have a partner table your query could be as easy as this:
SELECT
p.partner_id
,COUNT(a.id) AS ArticlesAppearedIn
FROM
positron_articles a
LEFT JOIN PARTNERTABLE p
ON regexp_count(a.partnerids,p.partnerid) > 0
GROUP BY
p.partner_id
I will actually correct myself as I just thought of a way to join a partner table without regexp_count. So if you have a partner table this might work for you. If not you will need to split strings. It basically tests to see if the partnerid is the entire partnerids, at the beginning, in the middle, or at the end of partnerids. If one of those is met then the records is returned.
SELECT
p.partner_id
,COUNT(a.id) AS ArticlesAppearedIn
FROM
PARTNERTABLE p
INNER JOIN positron_articles a
ON
(
CASE
WHEN a.partnerids = CAST(p.partnerid AS VARCHAR(100)) THEN 1
WHEN a.partnerids LIKE p.partnerid + ',%' THEN 1
WHEN a.partnerids LIKE '%,' + p.partnerid + ',%' THEN 1
WHEN a.partnerids LIKE '%,' + p.partnerid THEN 1
ELSE 0
END
) = 1
GROUP BY
p.partner_id
I have been writing a query that allows me to select and count rows for specific product id's and shipment types.
Within this data, what I am now trying to achieve is count which rows have a specific field populated (second member name) and which have not. Then return this as a separate column in my query results.
Here's the query which I have written:
select count(job.JobID) as itemsCount, Lookup_Pack.PackDescription, Lookup_Pack.PackCode, Lookup_Pack.ID, job.shipping,
CASE
WHEN Job.secondMemForename <> '' THEN count(job.JobID)
ELSE 0
END AS [Extra card count]
from job
inner join Lookup_Pack on Lookup_Pack.ID = job.packTypeID
where Lookup_Pack.PackType = 'REN'
AND job.createDate >= '2015-06-01' and Job.createDate <= '2015-06-30'
GROUP BY Lookup_Pack.PackDescription, Lookup_Pack.PackCode, Lookup_Pack.ID, Job.shipping
If I run this query, I get an error returned as I am not grouping by Job.secondMemForename:
[FreeTDS][SQL Server]Column 'job.secondMemForename' is invalid in the
select list because it is not contained in either an aggregate
function or the GROUP BY clause.
although Job.secondMemForename does not form part of the query results.
I have subsequently added this field to the GROUP BY statement, the problem with this is that the data returned for all rows where the CASE applies is un-grouped as the Job.secondMemForename is different for all of them.
Any idea how I can resolve this?
Thanks.
Steeve.
Change Count() to Sum() and add it before CASE
SUM (CASE WHEN Job.secondMemForename <> '' THEN 1 END) AS [Extra card count]
I hve to display several cell values into one cell. So I am using this query:
select LISTAGG(fc.DESCRIPTION, ';'||chr(10))WITHIN GROUP (ORDER BY fc.SWITCH_NAME) AS DESCRIP from "ORS".SWITCH_OPERATIONS fc
group by fc.SWITCH_NAME
It is working fine. But when I am merging this with my main(complete) query then I am getting the error as: Error code 1427, SQL state 21000: ORA-01427: single-row subquery returns more than one row
Here is my complete query:
SELECT
TRACK_EVENT.LOCATION,
TRACK_EVENT.ELEMENT_NAME,
(select COUNT(*) from ORS.TRACK_EVENT b where (b.ELEMENT_NAME = sw.SWITCH_NAME)AND (b.ELEMENT_TYPE = 'SWITCH')AND (b.EVENT_TYPE = 'I')AND (b.ELEMENT_STATE = 'NORMAL' OR b.ELEMENT_STATE = 'REVERSE'))as COUNTER,
(select COUNT(*) from ORS.SWITCH_OPERATIONS fc where TRACK_EVENT.ELEMENT_NAME = fc.SWITCH_NAME and fc.NO_CORRESPONDENCE = 1 )as FAIL_COUNT,
(select MAX(cw.COMMAND_TIME) from ORS.SWITCH_OPERATIONS cw where ((TRACK_EVENT.ELEMENT_NAME = cw.SWITCH_NAME) and (cw.NO_CORRESPONDENCE = 1)) group by cw.SWITCH_NAME ) as FAILURE_DATE,
(select LISTAGG(fc.DESCRIPTION, ';'||chr(10))WITHIN GROUP (ORDER BY fc.SWITCH_NAME) AS DESCRIP from "ORS".SWITCH_OPERATIONS fc
group by fc.SWITCH_NAME)
FROM
ORS.SWITCH_OPERATIONS sw,
ORS.TRACK_EVENT TRACK_EVENT
WHERE
sw.SEQUENCE_ID = TRACK_EVENT.SEQUENCE_ID
Not only are subqueries in the SELECT list required to return exactly one row (or any time they're used for a singular comparison, like <, =, etc), but their use in that context tends to make the database execute them RBAR - Row-by-agonizing-row. That is, they're slower and consume more resources than they should.
Generally, unless the result set outside the subquery contains only a few rows, you want to construct subqueries as part of a table-reference. Ie, something like:
SELECT m.n, m.z, aliasForSomeTable.a, aliasForSomeTabe.bSum
FROM mainTable m
JOIN (SELECT a, SUM(b) AS bSum
FROM someTable
GROUP BY a) aliasForSomeTable
ON aliasForSomeTable.a = m.a
This benefits you in other ways to - it's easier to get multiple columns out of the same table-reference, for example.
Assuming that LISTAGG(...) can be included with other aggregate functions, you can change your query to look like this:
SELECT Track_Event.location, Track_Event.element_name,
Counted_Events.counter,
Failure.fail_count, Failure.failure_date, Failure.descrip
FROM ORS.Track_Event
JOIN ORS.Switch_Operations
ON Switch_Operations.sequence_id = Track_Event.sequence_id
LEFT JOIN (SELECT element_name, COUNT(*) AS counter
FROM ORS.Track_Event
WHERE element_type = 'SWITCH'
AND event_type = 'I'
AND element_state IN ('NORMAL', 'REVERSE')
GROUP BY element_name) Counted_Events
ON Counted_Events.element_name = Switch_Operations.swicth_name
LEFT JOIN (SELECT switch_name,
COUNT(CASE WHEN no_correspondence = 1 THEN '1' END) AS fail_count,
MAX(CASE WHEN no_correspondence = 1 THEN command_time END) AS failure_date,
LISTAGG(description, ';' || CHAR(10)) WITHIN GROUP (ORDER BY command_time) AS descrip
FROM ORS.Switch_Operations
GROUP BY switch_name) Failure
ON Failure.switch_name = Track_Event.element_name
This query was written to (attempt to) preserve the semantics of your original query. I'm not completely sure that's what you actually need but without sample starting data and desired results, I have no way to tell how else to improve this. For instance, I'm a little suspicious of the need of Switch_Operations in the outer query, and the fact that LISTAGG(...) is run over row where no_correspondence <> 1. I did change the ordering of LISTAGG(...), because the original column would not have done anything (because the order way the same as the grouping), so would not have been a stable sort.
Single-row subquery returns more than one row.
This error message is self descriptive.
Returned field can't have multiple values and your subquery returns more than one row.
In your complete query you specify fields to be returned. The last field expects single value from the subquery but gets multiple rows instead.
I have no clue about the data you're working with but either you have to ensure that subquery returns only one row or you have to redesign the wrapping query (possibly using joins when appropriate).
I am trying to write a query for an inventory system. In order to do this I have to count the number of duplicates in one table and then compare it to the default quantity values taken from another table.
Here are two queries which I am working with currently:
SELECT Template_ID,
COUNT(Template_ID) AS Howmuch, t.name
FROM consumables e, templates t
Where t.consumable_type_id = '2410980'
GROUP BY template_id, t.name
HAVING ( COUNT(Template_ID) > 1 )
The query above takes account of each unique Template Id and gives me a count of how many duplicates are present which tells me the amount of a single substance.
Select
property_descriptors.default_value,
templates.name
From
templates,
Property_descriptors
Where
templates.consumable_type_id = '858190' And
templates.audit_id = property_descriptors.audit_id And
property_descriptors.name = 'Reorder Point'
This query finds the amount of each individual substance we would like to have in our system.
My Issue is that I dont know of a way to compare the results from the 2 queries.
Ideally, I want the query to only give the substance which have a duplicate count lower than their default value (found using query 2).
any ideas would be appreciated!
here is the table schema for reference:
Consumables
ID|Template_ID|
Templates
ID|Property_Descriptor_ID|Name|audit_id
Property_Descriptors
ID| Name|Default_Value|audit_id
Thanks!
SELECT q1.name, q2.default_value - q1.Howmuch FROM
(SELECT Template_ID, COUNT(Template_ID) AS Howmuch, t.name
FROM consumables e, templates t
Where t.consumable_type_id = '2410980'
GROUP BY template_id, t.name
HAVING ( COUNT(Template_ID) > 1 )) q1,
(SELECT property_descriptors.default_value default_value,
templates.name name
FROM
templates,
Property_descriptors
WHERE
templates.consumable_type_id = '858190' And
templates.audit_id = property_descriptors.audit_id And
property_descriptors.name = 'Reorder Point') q2
where q1.name = q2.name
should do the trick you'll need to clean up the result a bit to work away negative results
or add q2.default_value - q1.Howmuch > 0 in the outer WHERE clause
Need help on a query using sql server 2005
I am having two tables
code
chargecode
chargeid
orgid
entry
chargeid
itemNo
rate
I need to list all the chargeids in entry table if it contains multiple entries having different chargeids
which got listed in code table having the same charge code.
data :
code
100,1,100
100,2,100
100,3,100
101,11,100
101,12,100
entry
1,x1,1
1,x2,2
2,x3,2
11,x4,1
11,x5,1
using the above data , it query should list chargeids 1 and 2 and not 11.
I got the way to know how many rows in entry satisfies the criteria, but m failing to get the chargeids
select count (distinct chargeId)
from entry where chargeid in (select chargeid from code where chargecode = (SELECT A.chargecode
from code as A join code as B
ON A.chargecode = B.chargeCode and A.chargetype = B.chargetype and A.orgId = B.orgId AND A.CHARGEID = b.CHARGEid
group by A.chargecode,A.orgid
having count(A.chargecode) > 1)
)
First off: I apologise for my completely inaccurate original answer.
The solution to your problem is a self-join. Self-joins are used when you want to select more than one row from the same table. In our case we want to select two charge IDs that have the same charge code:
SELECT DISTINCT c1.chargeid, c2.chargeid FROM code c1
JOIN code c2 ON c1.chargeid != c2.chargeid AND c1.chargecode = c2.chargecode
JOIN entry e1 ON e1.chargeid = c1.chargeid
JOIN entry e2 ON e2.chargeid = c2.chargeid
WHERE c1.chargeid < c2.chargeid
Explanation of this:
First we pick any two charge IDs from 'code'. The DISTINCT avoids duplicates. We make sure they're two different IDs and that they map to the same chargecode.
Then we join on 'entry' (twice) to make sure they both appear in the entry table.
This approach gives (for your example) the pairs (1,2) and (2,1). So we also insist on an ordering; this cuts to result set down to just (1,2), as you described.