Was wondering if someone could assist in providing some guidance as to how I could most efficiently normalize the following table so that I can create a refreshable view / table.
Table1:
SYSTEM_KEY | ID | ORDER | ORDER_STATUS | SYSTEM_Actions
A 1 Pencil Open Shipped
B 1 Pencil Open Tested
C 1 Pencil Open Shipped
A 1 Paper Closed Delivered
I'am looking to normalize this table in a repeatable way to something like this:
RESULT:
ID | ORDER | Order Status | A_actions | B_Actions | C_Actions
1 Pencil OPEN Shipped Tested Delivered
1 Paper Closed Delivered null null
I was able to achieve this by doing something similar to this
Select full.ID, full.order, full.orderstatus, case when system_ID = 'A' then sysa.system_actions as A_actions, ....{for B, C}
from table1 full
left join table1 sysa on full.id = sysa.id and full.order = sysa.order
left join table1 sysb on full.id = sysb.id and full.order = sysb.order
Whilst this appeared to work, it was quite clunky in terms of being repeatable having to use several staging tables.
Does anyone know if a good way I can achieve this?
try using group by clause
select id,order,order_status,
case when system_ID = 'A' then system_actions as A_actions,
case when system_ID = 'B' then system_actions as B_actions,
case when system_ID = 'C' then system_actions as C_actions
from table1
group by id,order,order_status
Related
TABLE A: Pre-joined table - Holds a list of providers who belong to a group and the group the provider belongs to. Columns are something like this:
ProviderID (PK, FK) | ProviderName | GroupID | GroupName
1234 | LocalDoctor | 987 | LocalDoctorsUnited
5678 | Physican82 | 987 | LocalDoctorsUnited
9012 | Dentist13 | 153 | DentistryToday
0506 | EyeSpecial | 759 | OphtaSpecialist
TABLE B: Another pre-joined table, holds a list of providers and their demographic information. Columns as such:
ProviderID (PK,FK) | ProviderName | G_or_I | OtherColumnsThatArentInUse
1234 | LocalDoctor | G | Etc.
5678 | Physican82 | G | Etc.
9012 | Dentist13 | I | Etc.
0506 | EyeSpecial | I | Etc.
The expected result is something like this:
ProviderID | ProviderName | ProviderStatus | GroupCount
1234 | LocalDoctor | Group | 2
5678 | Physican82 | Group | 2
9012 | Dentist13 | Individual | N/A
0506 | EyeSpecial | Individual | N/A
The goal is to determine whether or not a provider belongs to a group or operates individually, by the G_or_I column. If the provider belongs to a group, I need to include an additional column that provides the count of total providers in that group.
The Group/Individual portion is relatively easy - I've done something like this:
SELECT DISTINCT
A.ProviderID,
A.ProviderName,
CASE
WHEN B.G_or_I = 'G'
THEN 'Group'
WHEN B.G_or_I = 'I'
THEN 'Individual' END AS ProviderStatus
FROM
TableA A
LEFT OUTER JOIN TableB B
ON A.ProviderID = B.ProviderID;
So far so good, this returns the expected results based on the G_or_I flag.
However, I can't seem to wrap my head around how to complete the COUNT portion. I feel like I may be overthinking it, and stuck in a loop of errors. Some things I've tried:
Add a second CASE STATEMENT:
CASE
WHEN B.G_or_I = 'G'
THEN (
SELECT CountedGroups
FROM (
SELECT ProviderID, count(GroupID) AS CountedGroups
FROM TableA
WHERE A.ProviderID = B.ProviderID
GROUP BY ProviderID --originally had this as ORDER BY, but that was a mis-type on my part
)
)
ELSE 'N/A' END
This returns an error stating that a single row sub-query is returning more than one row. If I limit the number of rows returned to 1, the CountedGroups column returns 1 for every row. This makes me think that its not performing the count function as I expect it to.
I've also tried including a direct count of TableA as a factored sub-query:
WITH CountedGroups AS
( SELECT Provider ID, count(GroupID) As GroupSum
FROM TableA
GROUP BY ProviderID --originally had this as ORDER BY, but that was a mis-type on my part
) --This as a standalone query works just fine
SELECT DISTINCT
A.ProviderID,
A.ProviderName,
CASE
WHEN B.G_or_I = 'G'
THEN 'Group'
WHEN B.G_or_I = 'I'
THEN 'Individual' END AS ProviderStatus,
CASE
WHEN B.G_or_I = 'G'
THEN GroupSum
ELSE 'N/A' END
FROM
CountedGroups CG
JOIN TableA A
ON CG.ProviderID = A.ProviderID
LEFT OUTER JOIN TableB
ON A.ProviderID = B.ProviderID
This returns either null or completely incorrect column values
Other attempts have been a number of variations of this, with a mix of bad results or Oracle errors. As I mentioned above, I'm probably way overthinking it and the solution could be rather simple. Apologies if the information is confusing or I've not provided enough detail. The real tables have a lot of private medical information, and I tried to translate the essence of the issue as best I could.
Thank you.
You can use the CASE..WHEN and analytical function COUNT as follows:
SELECT
A.PROVIDERID,
A.PROVIDERNAME,
CASE
WHEN B.G_OR_I = 'G' THEN 'Group'
ELSE 'Individual'
END AS PROVIDERSTATUS,
CASE
WHEN B.G_OR_I = 'G' THEN TO_CHAR(COUNT(1) OVER(
PARTITION BY A.GROUPID
))
ELSE 'N/A'
END AS GROUPCOUNT
FROM
TABLE_A A
JOIN TABLE_B B ON A.PROVIDERID = B.PROVIDERID;
TO_CHAR is needed on COUNT as output expression must be of the same data type in CASE..WHEN
Your problem seems to be that you are missing a column. You need to add group name, otherwise you won't be able to differentiate rows for the same practitioner who works under multiple business entities (groups). This is probably why you have a DISTINCT on your query. Things looked like duplicates which weren't. Once you've done that, just use an analytic function to figure out the rest:
SELECT ta.providerid,
ta.providername,
DECODE(tb.g_or_i, 'G', 'Group', 'I', 'Individual') AS ProviderStatus,
ta.group_name,
CASE
WHEN tb.g_or_i = 'G' THEN COUNT(DISTINCT ta.provider_id) OVER (PARTITION BY ta.group_id)
ELSE 'N/A'
END AS GROUP_COUNT
FROM table_a ta
INNER JOIN table_b tb ON ta.providerid = tb.providerid
Is it possible that your LEFT JOIN was going the wrong direction? It makes more sense that your base demographic table would have all practitioners in it and then the Group table might be missing some records. For instance if the solo prac was operating under their own SSN and Type I NPI without applying for a separate Type II NPI or TIN.
My question is very similar to this, except I want to be able to filter by some criteria.
I have a table "DOCUMENT" which looks something like this:
|ID|CONFIG_ID|STATE |MAJOR_REV|MODIFIED_ON|ELEMENT_ID|
+--+---------+----------+---------+-----------+----------+
| 1|1234 |Published | 2 |2019-04-03 | 98762 |
| 2|1234 |Draft | 1 |2019-01-02 | 98762 |
| 3|5678 |Draft | 3 |2019-01-02 | 24244 |
| 4|5678 |Published | 2 |2017-10-04 | 24244 |
| 5|5678 |Draft | 1 |2015-05-04 | 24244 |
It's actually a few more columns, but I'm trying to keep this simple.
For each CONFIG_ID, I would like to select the latest (MAX(MAJOR_REV) or MAX(MODIFIED_ON)) - but I might want to filter by additional criteria, such as state (e.g., the latest published revision of a document) and/or date (the latest revision, published or not, as of a specific date; or: all documents where a revision was published/modified within a specific date interval).
To make things more interesting, there are some other tables I want to join in.
Here's what I have so far:
SELECT
allDocs.ID,
d.CONFIG_ID,
d.[STATE],
d.MAJOR_REV,
d.MODIFIED_ON,
d.ELEMENT_ID,
f.ID FILE_ID,
f.[FILENAME],
et.COLUMN1,
e.COLUMN2
FROM DOCUMENT -- Get all document revisions
CROSS APPLY ( -- Then for each config ID, only look at the latest revision
SELECT TOP 1
ID,
MODIFIED_ON,
CONFIG_ID,
MAJOR_REV,
ELEMENT_ID,
[STATE]
FROM DOCUMENT
WHERE CONFIG_ID=allDocs.CONFIG_ID
ORDER BY MAJOR_REV desc
) as d
LEFT OUTER JOIN ELEMENT e ON e.ID = d.ELEMENT_ID
LEFT OUTER JOIN ELEMENT_TYPE et ON e.ELEMENT_TYPE_ID=et.ID
LEFT OUTER JOIN TREE t ON t.NODE_ID = d.ELEMENT_ID
OUTER APPLY ( -- This is another optional 1:1 relation, but it's wrongfully implemented as m:n
SELECT TOP 1
FILE_ID
FROM DOCUMENT_FILE_RELATION
WHERE DOCUMENT_ID=d.ID
ORDER BY MODIFIED_ON DESC
) as df -- There should never be more than 1, but we're using TOP 1 just in case, to avoid duplicates
LEFT OUTER JOIN [FILE] f on f.ID=df.FILE_ID
WHERE
allDocs.CONFIG_ID = '5678' -- Just for testing purposes
and d.state ='Released' -- One possible filter criterion, there may be others
It looks like the results are correct, but multiple identical rows are returned.
My guess is that for documents with 4 revisions, the same values are found 4 times and returned.
A simple SELECT DISTINCT would solve this, but I'd prefer to fix my query.
This would be a classic row_number & partition by question I think.
;with rows as
(
select <your-columns>,
row_number() over (partion by config_id order by <whatever you want>) as rn
from document
join <anything else>
where <whatever>
)
select * from rows where rn=1
Trying to pull data from a single table called tblTooling where two TlPartNo numbers are equal to different values and the TlToolNo are not equal for these TlPartNo . This is an Access DB and the following statement gets me close, but still gives too much data.
SELECT DISTINCT
tblTooling.TlToolNo,
tblTooling.TlPartNo,
tblTooling.TlOP,
tblTooling.TlQuantity
FROM tblTooling, tblTooling AS tblTooling_1
WHERE (((tblTooling.TlToolNo)<>tblTooling_1.TlToolNo)
AND ((tblTooling.TlPartNo)="10290722")
AND ((tblTooling_1.TlPartNo)="10295379"));
The included image has the tblTooling structure and Data. Plus the expected results from the query.
You seem to want exclude a ToolNo value when it occurs with both PartNo values. In that case you could group intermediate results by ToolNo, and see whether in such a group there is only one PartNo present (with having). In that case keep that record, and in the outer query, get the two other columns added to it:
SELECT DISTINCT
tblTooling.TlToolNo,
tblTooling.TlPartNo,
tblTooling.TlOP,
tblTooling.TlQuantity
FROM tblTooling
INNER JOIN (
SELECT TlToolNo,
Min(TlPartNo) AS MinTlPartNo,
Max(TlPartNo) AS MaxTlPartNo
FROM tblTooling
WHERE TlPartNo IN ("10290722", "10295379")
GROUP BY TlToolNo
HAVING Min(TlPartNo) = Max(TlPartNo)
) AS grp
ON grp.TlToolNo = tblTooling.TlToolNo
AND grp.MinTlPartNo = tblTooling.TlPartNo
Note that for your sample data this will return 4 rows:
TlToolNo | TlPartNo | TlOP | TlQuantity
----------+----------+------+-----------
T00012362 | 10290722 | OP10 | 2
T00012456 | 10290722 | OP10 | 1
T00013456 | 10290722 | OP20 | 1
T00014348 | 10295379 | OP20 | 1
I think you can do this with not exists:
select t.*
from tblTooling as t
where not exists (select 1
from tblTooling as t2
where t2.TlPartNo in ("10290722", "10295379") and
t2.TlToolNo = t.TlToolNo and
t2.tiid <> t.tiid
) and
t.TlPartNo in ("10290722", "10295379");
This saves on the select distinct, which should be a performance boost.
I have this table:
id | owner | asset | rate
-------------------------
1 | 1 | 3 | 1
2 | 1 | 4 | 2
3 | 2 | 3 | 3
4 | 2 | 5 | 4
And i'm using
SELECT asset, max(rate)
FROM test
WHERE owner IN (1, 2)
GROUP BY asset
HAVING count(asset) > 1
ORDER BY max(rate) DESC
to get intersection of assets for specified owners with best rate.
I also need id of row used for max(rate), but i can't find a way to include it to SELECT. Any ideas?
Edit:
I need
Find all assets that belongs to both owners (1 and 2)
From the same asset i need only one with the best rate (3)
I also need other columns (owner) that belongs to the specific asset with best rate
I expect the following output:
id | asset | rate
-------------------------
3 | 3 | 3
Oops, all 3s, but basically i need id of 3rd row to query the same table again, so resulting output (after second query) will be:
id | owner | asset | rate
-------------------------
3 | 2 | 3 | 3
Let's say it's Postgres, but i'd prefer reasonably cross-DBMS solution.
Edit 2:
Guys, i know how to do this with JOINs. Sorry for misleading question, but i need to know how to get extra from existing query. I already have needed assets and rates selected, i just need one extra field among with max(rate) and given conditions if it's possible.
Another solution that might or might not be faster than a self join (depending on the DBMS' optimizer)
SELECT id,
asset,
rate,
asset_count
FROM (
SELECT id,
asset,
rate,
rank() over (partition by asset order by rate desc) as rank_rate,
count(asset) over (partition by null) as asset_count
FROM test
WHERE owner IN (1, 2)
) t
WHERE rank_rate = 1
ORDER BY rate DESC
You are dealing with two questions and trying to solve them as if they are one. With a subquery, you can better refine by filtering the list in the proper order first (max(rate)), but as soon as you group, you lose this. As such, i would set up two queries (same procedure, if you are using procedures, but two queries) and ask the questions separately. Unless ... you need some of the information in a single grid when output.
I guess the better direction to head is to have you show how you want the output to look. Once you bake the input and the output, the middle of the oreo is easier to fill.
SELECT b.id, b.asset, b.rate
from
(
SELECT asset, max(rate) maxrate
FROM test
WHERE owner IN (1, 2)
GROUP BY asset
HAVING count(asset) > 1
) a, test b
WHERE a.asset = b.asset
AND a.maxrate = b.rate
ORDER BY b.rate DESC
You don't specify what type of database you're running on, but if you have analytical functions available you can do this:
select id, asset, max_rate
from (
select ID, asset, max(rate) over (partition by asset) max_rate,
row_number() over (partition by asset order by rate desc) row_num
from test
where owner in (1,2)
) q
where row_num = 1
I'm not sure how to add in the "having count(asset) > 1" in this way though.
This first searches for rows with the maximum rate per asset. Then it takes the highest id per asset, and selects that:
select *
from test
inner join
(
select max(id) as MaxIdWithMaxRate
from test
inner join
(
select asset
, max(rate) as MaxRate
from test
group by
asset
) filter
on filter.asset = test.asset
and filter.MaxRate = test.rate
group by
asset
) filter2
on filter.MaxIdWithMaxRate = test.id
If multiple assets share the maximum rate, this will display the one with the highest id.
I'm working on an Android app that will display some information from a sqlite database in a listview. I need some help sorting out my query.
The database looks like this:
[monitors] 1 --- <has> --- * [results] 1 --- <has> --- * [steps]
Table monitors has columns: _id | warning_threshold | alarm_threshold | monitor_name
Table results has columns: _id | monitor_id | timestamp | test_info
Table steps has columns: _id | result_id | correct | response_time
I'm trying to make a query that would return:
1) All rows & columns from the monitors table.
2) The newest test_info for each monitor from the results table.
3) Count the number of correct = true for each result from the steps table.
The returned cursor should look something like this:
_id | monitor_name | warning_threshold | alarm_threshold | test_info | correct_count
1 | 'hugo' | 1000 | 1500 | 'some info' | 7
2 | 'kurt' | 800 | 1200 | 'info.....' | 5
My query:
SELECT * FROM
(SELECT monitors._id AS _id,
monitors.monitor_name AS monitor_name,
monitors.warning_threshold AS warning_threshold,
monitors.alarm_threshold AS alarm_threshold,
results.test_info AS test_info
FROM monitors
LEFT JOIN results
ON monitors._id = results.monitor_id
ORDER BY results.timestamp ASC) AS inner
GROUP BY inner._id;
I almost got it working. I am able to get the info from monitors and results, I still need to get the correct_count. Any help with sorting out this query would be greatly appreciated.
This is my approach, using a combination of Left Joins, sub queries, and correlated subqueries:
SELECT monitors._id AS _id,
monitors.monitor_name AS monitor_name,
monitors.warning_threshold AS warning_threshold,
monitors.alarm_threshold AS alarm_threshold,
LastResults.test_info AS test_info,
COUNT(CorrectSteps._id) AS correct_count
FROM monitors
LEFT JOIN
(SELECT * FROM results as r1 where timestamp =
(SELECT Max(r2.timestamp) FROM results AS r2 WHERE r1.monitor_id=r2.monitor_id)) LastResults
ON monitors._id = LastResults.monitor_id
LEFT JOIN
(SELECT * FROM steps WHERE correct = 'true') CorrectSteps
ON LastResults._id = CorrectSteps.result_id
GROUP BY monitors._id;
Something like this should work. I haven't been able to test it out but hopefully it will at least get you started. Note that this query is not even close to optimized. Wrote it quickly during my lunch :)
SELECT m._id,
m.monitor_name,
m.warning_threshold,
m.alarm_threshold,
(SELECT r.test_info
FROM results r
WHERE r.monitor_id = m._id
ORDER BY r.timestamp ASC
LIMIT 1) as 'test_info',
(SELECT COUNT(_id)
FROM steps s
WHERE s.result_id IN (SELECT _id FROM results WHERE monitor_id = m._id)
AND s.correct = 'true') as 'correct_count'
FROM monitor m