My query returns 1 value if I use the Max(SampleDateTime) or Min( ) on the Date/Time field I want, but it returns no values if I leave out the Max or Min. I want to return ALL the values, but I can't seem to figure this out.
I want all the Quality Samples between the Start and Stop times of a Production Run.
RunSamples:
Select Max([SampleDateTime])
FROM [QualitySamples] AS [GoodSamples]
WHERE [GoodSamples].[SampleDateTime] >= [ProductionRuns_tbl].[RunStartDate]
AND [GoodSamples].[SampleDateTime] <= [ProductionRuns_tbl].[RunEndDate]
ProductionRuns_tbl:
RunStartDate RunEndDate
1/1/2017 12 AM 1/5/17 12 AM
...
QualitySamples Tbl:
ID SampleDateTime
1 1/1/2017 2 am
2 1/1/2017 3 am
...
Here's the full SQL code:
SELECT ProductionRuns_tbl.RunName, ProductionRuns_tbl.RunStartDate,
ProductionRuns_tbl.RunEndDate,
(Select Max([SampleDateTime])
FROM [QualitySamples] AS [GoodSamples]
WHERE [GoodSamples].[SampleDateTime] >= [ProductionRuns_tbl].[RunStartDate]
AND [GoodSamples].[SampleDateTime] <= [ProductionRuns_tbl].[RunEndDate])
AS RunSamples
FROM ProductionRuns_tbl
WHERE (((ProductionRuns_tbl.RunName)=[Forms]![Home]![RunName]));
Try to use join instead:
SELECT ProductionRuns_tbl.RunName,
ProductionRuns_tbl.RunStartDate,
ProductionRuns_tbl.RunEndDate,
GoodSamples.SampleDateTime
FROM QualitySamples GoodSamples INNER JOIN ProductionRuns_tbl ON
GoodSamples.SampleDateTime >= ProductionRuns_tbl.RunStartDate AND
GoodSamples.SampleDateTime <= ProductionRuns_tbl.RunEndDate
WHERE ProductionRuns_tbl.RunName=[Forms]![Home]![RunName]
I'm taking a risk posting right now, because I had to try to read your mind on what you're trying to do (plus, I don't know if this will work in Access, but it will work in SQL server)
Since you want all the data, is this what you're looking for?
SELECT
ProductionRuns_tbl.RunName,
ProductionRuns_tbl.RunStartDate,
ProductionRuns_tbl.RunEndDate,
[QualitySamples].[SampleDateTime]
FROM
ProductionRuns_tbl
LEFT JOIN
[QualitySamples]
ON
[QualitySamples].[SampleDateTime] >= [ProductionRuns_tbl].[RunStartDate]
AND
[QualitySamples].[SampleDateTime] <= [ProductionRuns_tbl].[RunEndDate]
WHERE
(((ProductionRuns_tbl.RunName)=[Forms]![Home]![RunName]));
This should list the RunName, Start and End dates repeated for each individual SampleDateTime. Based on your more specific requirements, you can then refine the results from there.
Dont have WHERE, MAX or MIN. Just have the SELECT query.
Select [SampleDateTime]
FROM [QualitySamples] AS [GoodSamples]
Related
I work for a Logistics Company and we have to have a 7 digit Pro Number on each piece of freight that is in a pre-determined order. So we know there is gaps in the numbers, but is there any way I can Query the system and find out what ones are missing?
So show me all the numbers from 1000000 to 2000000 that do not exist in column name trace_number.
So as you can see below the sequence goes 1024397, 1024398, then 1051152 so I know there is a substantial gap of 26k pro numbers, but is there anyway to just query the gaps?
Select t.trace_number,
integer(trace_number) as number,
ISNUMERIC(trace_number) as check
from trace as t
left join tlorder as tl on t.detail_number = tl.detail_line_id
where left(t.trace_number,1) in ('0','1','2','3','4','5','6','7','8','9')
and date(pick_up_by) >= current_date - 1 years
and length(t.trace_number) = 7
and t.trace_type = '2'
and site_id in ('SITE5','SITE9','SITE10')
and ISNUMERIC(trace_number) = 'True'
order by 2
fetch first 10000 rows only
I'm not sure what your query has to do with the question, but you can identify gaps using lag()/lead(). The idea is:
select (trace_number + 1) as start_gap,
(next_tn - 1) as end_gap
from (select t.*,
lead(trace_number) order by (trace_number) as next_tn
from t
) t
where next_tn <> trace_number + 1;
This does not find them within a range. It just finds all gaps.
try Something like this (adapt the where condition, put into clause "on") :
with Range (nb) as (
values 1000000
union all
select nb+1 from Range
where nb<=2000000
)
select *
from range f1 left outer join trace f2
on f2.trace_number=f1.nb
and f2.trace_number between 1000000 and 2000000
where f2.trace_number is null
I am working on a classroom reservation tool. A core component is the ability to compare the requested date range to the existing reservations, to ensure that there is no overlap. I've read through several date range related questions here, and studied Salman's explanation and implementation of Allen's interval algebra ( SQL Query to Find Overlapping (Conflicting) Date Ranges ) until I understood it. Here's a stripped-down version of what I came up with.
tblRooms
roomID room
5 110
30 178
tblReservations
reservedID fkRoom dateIn dateOut
1 5 3/10/2017 3/15/2017
2 5 3/1/2017 3/3/2017
4 5 4/1/2017 4/30/2017
SELECT DISTINCTROW tblRooms.roomID, tblRooms.room
FROM tblRooms LEFT JOIN tblReservations
ON tblRooms.roomID = tblReservations.fkRoom
WHERE NOT Exists (
SELECT DISTINCT tblRooms.roomID
FROM tblRooms
WHERE ((tblReservations.[dateOut] >= #3/3/2017#)
AND (#3/9/2017# >= tblReservations.[dateIn])));
I'm getting inconsistent returns. These dates will exclude room 110, as they should. Other test input (#3/4/2017# and #3/10/2017#, #4/1/2017# and #4/14/2017#) won't. I've tried combinations of "WHERE NOT (...", "WHERE Exists () = False", etc.
I work on a highly restrictive network, where I can't pull in templates at will - my only options when I create a database are "Blank" and "Web", so I've got to roll my own on this. I appreciate any assistance.
Can you try the following:
SELECT DISTINCTROW tblRooms.roomID, tblRooms.room
FROM tblRooms
WHERE NOT Exists (
SELECT 1
FROM tblReservations
WHERE
tblReservations.fkRoom = tblRooms.roomID
AND ((tblReservations.[dateOut] >= #3/3/2017#)
AND (#3/9/2017# >= tblReservations.[dateIn])));
For a reservation check query you would do this:
select ...
from tblRooms room
where not exists
( select *
from tblReservations r
where r.fkRoom = room.roomId and
end > r.[datein] and start < r.[dateout] );
BUT the important part is, pass those end and start as parameters instead of hardcoded values like you did. With hardcoded values you are always open to get wrong results or error. For example what is:
#3/9/2017# really? Its interpretation would depend on regional settings (I am not an access programmer so I might be wrong).
Select p.uhid,p.inpatientno,dateof admission
from adt.inpatientmaster p
where p.uhid='apd1' and status <>0
Here uhid is unique. I want to check that a patient gets admitted in between 24 hours , here if patient gets admitted again then uhid remains same but inpatientno always change.
Ex:
Registraionno inpatientno dateofadmission
Apd1 xy1 18/01/15
Ap1 ab2 19/01/15
We can do arithmetic on Oracle dates. So yesterday is sysdate - 1.
You need to query the table twice. Once to find the patient records, and once to find any previous matches. Use a self-join to achieve this:
select p1.uhid,
p1.inpatientno as current_inpatientno,
p1.dateofadmission as current_dateofadmission
p2.inpatientno as previous_inpatientno,
p2.dateofadmission as previous_dateofadmission
from adt.inpatientmaster p1
join adt.inpatientmaster p2
on p2.uhid = p1.uhid
where p1.uhid='apd1'
and p1.status <> 0
and p2.dateofadmission >= p1.dateofadmission-1
and p2.inpatientno != p1.inpatientno
/
You may need to restrict on p2.status <> 0 as well: not sure what your business rules are.
This query will return one row for each match. If there are several admissions within the same 24 hours the result set will have one row for each combination.
SELECT p.uhid,
p.inpatientno,
p.dateofadmission
FROM adt.inpatientmaster p
WHERE p.status<>0
AND p.dateofadmission <= p.dateofadmission +1
AND p.uhid='APD1'
I have the following query below (view) in SQL Server. The query produces a result set that is needed to populate a grid. However, a new requirement has come up where the users would like to see data on one row in our app. The tblTasks table can produce 1 or 2 rows. The issue becomes when they're is two rows that have the same job_number but different fldProjectContextId (1 or 31). I need to get the MechApprovalOut and ElecApprovalOut columns on one row instead of two.
I've tried restructuring the query using CTE and over partition and haven't been able to get the necessary results I need.
SELECT TOP (100) PERCENT
CAST(dbo.Job_Control.job_number AS int) AS Job_Number,
dbo.tblTasks.fldSalesOrder, dbo.tblTaskCategories.fldTaskCategoryName,
dbo.Job_Control.Dwg_Sent, dbo.Job_Control.Approval_done,
dbo.Job_Control.fldElecDwgSent, dbo.Job_Control.fldElecApprovalDone,
CASE WHEN DATEDIFF(day, dbo.Job_Control.Dwg_Sent, GETDATE()) > 14
AND dbo.Job_Control.Approval_done IS NULL
AND dbo.tblProjectContext.fldProjectContextID = 1
THEN 1 ELSE 0
END AS MechApprovalOut,
CASE WHEN DATEDIFF(day, dbo.Job_Control.fldElecDwgSent, GETDATE()) > 14
AND dbo.Job_Control.fldElecApprovalDone IS NULL
AND dbo.tblProjectContext.fldProjectContextID = 31
THEN 1 ELSE 0
END AS ElecApprovalOut,
dbo.tblProjectContext.fldProjectContextName,
dbo.tblProjectContext.fldProjectContextId, dbo.Job_Control.Drawing_Info,
dbo.Job_Control.fldElectricalAppDwg
FROM dbo.tblTaskCategories
INNER JOIN dbo.tblTasks
ON dbo.tblTaskCategories.fldTaskCategoryId = dbo.tblTasks.fldTaskCategoryId
INNER JOIN dbo.Job_Control
ON dbo.tblTasks.fldSalesOrder = dbo.Job_Control.job_number
INNER JOIN dbo.tblProjectContext
ON dbo.tblTaskCategories.fldProjectContextId = dbo.tblProjectContext.fldProjectContextId
WHERE (dbo.tblTaskCategories.fldTaskCategoryName = N'Approval'
OR dbo.tblTaskCategories.fldTaskCategoryName = N'Re-Approval')
AND (CASE WHEN DATEDIFF(day, dbo.Job_Control.Dwg_Sent, GETDATE()) > 14
AND dbo.Job_Control.Approval_done IS NULL
AND dbo.tblProjectContext.fldProjectContextID = 1
THEN 1 ELSE 0
END = 1)
OR (dbo.tblTaskCategories.fldTaskCategoryName = N'Approval'
OR dbo.tblTaskCategories.fldTaskCategoryName = N'Re-Approval')
AND (CASE WHEN DATEDIFF(day, dbo.Job_Control.fldElecDwgSent, GETDATE()) > 14
AND dbo.Job_Control.fldElecApprovalDone IS NULL
AND dbo.tblProjectContext.fldProjectContextID = 31
THEN 1 ELSE 0
END = 1)
ORDER BY dbo.Job_Control.job_number, dbo.tblTaskCategories.fldProjectContextId
The above query gives me the following result set:
I've created a work around via code (which I don't like but it works for now) where i've used code to populate a "temp" table the way i need it to display the data, that is, one record if duplicate job numbers to get the MechApprovalOut and ElecApprovalOut columns on one row (see first record in following screen shot).
Example:
With the desired result set and one row per job_number, this is how the form looks with the data and how I am using the result set.
Any help restructuring my query to combine duplicate rows with the same job number where MechApprovalOut and ElecApproval out columns are on one row is greatly appreciated! I'd much prefer to use a view on SQL then code in the app to populate a temp table.
Thanks,
Jimmy
What I would do is LEFT JOIN the main table to itself at the beginning of the query, matching on Job Number and Sales Order, such that the left side of the join is only looking at Approval task categories and the right side of the join is only looking at Re-Approval task categories. Then I would make extensive use of the COALESCE() function to select data from the correct side of the join for use later on and in the select clause. This may also be the piece you were missing to make a CTE work.
There is probably also a solution that uses a ranking/windowing function (maybe not RANK itself, but something that category) along with the PARTITION BY clause. However, as those are fairly new to Sql Server I haven't used them enough personally to be comfortable writing an example solution for you without direct access to the data to play with, and it would still take me a little more time to get right than I can devote to this right now. Maybe this paragraph will motivate someone else to do that work.
I have a problem that I hope you can help me.
I have the next query on Access SQL.
SELECT
ID_PLAN_ACCION, ID_SEGUIMIENTO,
Max(FECHA_SEGUIMIENTO) AS MAX_FECHA
FROM
SEGUIMIENTOS
WHERE
(((ID_PLAN_ACCION) = [CODPA]))
GROUP BY
ID_PLAN_ACCION, ID_SEGUIMIENTO;
And it returns this information:
ID_PLAN_ACCION ID_SEGUIMIENTO MAX_FECHA
-----------------------------------------------
A1-01 1 16/01/2014
A1-01 2 30/01/2014
But I really need that it throws off this:
ID_PLAN_ACCION ID_SEGUIMIENTO MAX_FECHA
----------------------------------------------
A1-01 2 30/01/2014
As you can see I only need the record that has the most recently date, not all the records
The GROUP BY doesn't work.
Please can you tell me what can I do? I am new on all this.
Thank you so much!!
PD: Sorry for my english, I'm learning
This will produce the results you want:
SELECT ID_PLAN_ACCION, max(ID_SEGUIMIENTO) as ID_SEGUIMIENTO, Max(FECHA_SEGUIMIENTO) AS MAX_FECHA
FROM SEGUIMIENTOS
WHERE ID_PLAN_ACCION = [CODPA]
GROUP BY ID_PLAN_ACCION;
I removed id_sequiimiento from the group by and added an aggregation function to get the max value. If the ids increase along with the date, this will work.
Another way to approach this query, though, is to use top and order by:
SELECT top 1 ID_PLAN_ACCION, ID_SEGUIMIENTO, FECHA_SEGUIMIENTO
FROM SEGUIMIENTOS
WHERE ID_PLAN_ACCION = [CODPA]
ORDER BY FECHA_SEGUIMIENTO desc;
This works because you are only returning one row.
EDIT:
If you have more codes, that you are looking at, you need a more complicated query. Here is an approach using where/not exists:
SELECT ID_PLAN_ACCION, ID_SEGUIMIENTO, FECHA_SEGUIMIENTO
FROM SEGUIMIENTOS s
WHERE not exists (select 1
from SEGUIMIENTOS s2
where s.ID_PLAN_ACCION = s2.ID_PLAN_ACCION and
s2.FECHA_SEGUIMIENTO > s.FECHA_SEGUIMIENTO
)
ORDER BY FECHA_SEGUIMIENTO desc;
You can read this as: "Get me all rows from SEGUIMIENTOS where there is no other row with the same ID_PLAN_ACCION that has a larger date". Is is another way of saying that the original row has the maximum date.