I have a table that looks like this
[Serial Number] [EventNumber] [DateTimeStamp] [DataElement] [DataValue]
XXXX1 1 7/7/2013 10:00 AM Height 62
XXXX1 1 7/7/2013 10:00 AM Mass 12
XXXX1 1 8/3/2013 3:00 PM Length 13
XXXX1 1 8/3/2013 3:00 PM Width 60
XXXX1 2 10/10/2013 10:00 AM Height 22
XXXX1 2 10/10/2013 10:00 AM Mass 21
XXXX1 2 10/12/2013 10:00 AM Length 7
XXXX1 2 10/12/2013 11:00 AM Width 67
Workers in the factory enter the data through a web interface and it ends up in this table. The table contains hundreds of serial numbers and each serial number can have up to 19 or more events. Each event is some parameters that are measured. After the measurements are taken some modifications are done and the measurements get taken again for a sequential event.
I would like to create a table that looks like this for one specific serial number through SQL query
[Serial Number] [EventNumber] [Height] [Mass] [Width] [Lenght]
XXXX1 1 62 12 13 20
XXXX1 2 10 etc etc
XXXX1 3 etc
XXXX1 4 etc
I know I need to use the pivot, but I can't necessarily come up with correct SQL code.
Note: The data used in this example is made up, but the structure is all the same.
Thanks in advance
try this:
TRANSFORM Sum(t.DataValue) AS SumOfDataValue
SELECT t.[Serial Number], t.EventNumber
FROM Table1 AS t
GROUP BY t.[Serial Number], t.EventNumber
PIVOT t.DataElement;
Let me know if any problems.
Related
Struggling with ms-access's flavor of SQL queries still, though I've made some progress (thanks to y'all). I have an event log table like this:
Logs Table
logID (auto#)
modID (str)
relID (str)
DateTime (date)
TxType (short)
1
1234
22.3
10/1/22 0800
6
2
1234
22.3
10/1/22 0900
7
3
1234
22.3
10/1/22 1000
13
4
1234
22.3
10/1/22 1100
15
5
4321
22.3
10/1/22 0830
1
6
4321
22.3
10/1/22 0930
13
7
4321
22.3
10/1/22 1030
15
8
4321
22.3
10/1/22 1130
13
9
1234
23.1
11/1/22 0800
1
10
1234
23.1
11/1/22 0900
15
11
1234
23.1
11/1/22 1000
13
12
1234
23.1
11/1/22 1100
15
13
4321
23.1
11/1/22 0830
13
14
4321
23.1
11/1/22 0930
7
15
4321
23.1
11/1/22 1030
13
16
4321
23.1
11/1/22 1130
15
What I need to do is:
filter the table by relID, then
count the number of modID's that have a 15 txType as the last/most recent chronological event in their rows.
So ideally I'd filter e.g. by relID=23.1 and get these results (but not logID # 10 for example) and then count them:
logID (auto#)
modID (str)
relID (str)
DateTime (date)
TxType (short)
12
1234
23.1
11/1/22 1100
15
16
4321
23.1
11/1/22 1130
15
As part of another function I have been able to count any modID's having a single txType successfully using
SELECT COUNT(*)
FROM (
SELECT DISTINCT Logs.modID, Logs.relID
FROM Logs
WHERE ((Logs.relID='23.1') AND ((Logs.TxType=13)))
);
Another stackoverflow user (exception - thanks!) showed me how to get the last event type for a given modID, relID combination using
SELECT TOP 1 TxType
FROM Logs
WHERE (((Logs.modID=[EnterModID])) AND ((Logs.relID=[EnterRelID])))
ORDER BY DateTime DESC;
But I'm having trouble combining these two. I know I can combine COUNT and GROUP BY but Access treats GROUP BY very particularly, and I'm not sure how to use SELECT TOP to get the latest events for each modID rather than just the latest events in the table, period.
This should give you the logID from the row with the latest DateTime for each combination of modIDand your target relID:
PARAMETERS which_relID Text(255);
SELECT DISTINCT
(
SELECT TOP 1 logID
FROM Logs
WHERE modID=l.modID AND relID=l.relID
ORDER BY [DateTime] DESC
) AS latest_modID
FROM Logs AS l
WHERE l.relID=[which_relID]
Use it as a subquery which you INNER JOIN to your Logs table. Note the subquery evaluates rows regardless of TxType. So have the parent query select only rows whose TxType = 15
PARAMETERS which_relID Text(255);
SELECT l2.*
FROM
Logs AS l2
INNER JOIN
(
SELECT DISTINCT
(
SELECT TOP 1 logID
FROM Logs
WHERE modID=l.modID AND relID=l.relID
ORDER BY [DateTime] DESC
) AS latest_modID
FROM Logs AS l
WHERE l.relID=[which_relID]
) AS sub
ON l2.logID=sub.latest_modID
WHERE l2.TxType=15;
Note I moved the PARAMETERS clause into the parent query. But you can eliminate it altogether if you believe it's causing trouble.
DateTime is a reserved word. I enclosed it in square brackets to ensure Access understands we mean the name of an object.
Using your sample data, I get these 2 rows when I supply 23.1 for the query parameter:
logID
modID
relID
DateTime
TxType
12
1234
23.1
11/1/2022 11:00:00 AM
15
16
4321
23.1
11/1/2022 11:30:00 AM
15
I get a single row with 22.3 for the parameter:
logID
modID
relID
DateTime
TxType
4
1234
22.3
10/1/2022 11:00:00 AM
15
I have an Access table (Logs) like this:
pk
modID
relID
DateTime
TxType
1
1234
22.3
10/1/22 04:00
1
2
1234
23.1
10/10/22 06:00
1
3
1234
23.1
10/11/22 07:00
2
4
1234
23.1
10/12/22 08:00
3
5
4321
22.3
10/2/22 06:00
7
6
4321
23.1
10/10/22 06:00
1
7
4321
23.1
10/11/22 07:30
3
Trying to write a query as part of a function that searches this table:
for all records matching a given modID and relID (e.g. 1234 and 23.1),
picks the most recent one (the MAX of DateTime),
returns the TxType for that record.
However, a bit new to Access and its query structure is vexing me. I landed on this but because I have to include a Total/Aggregate function for TxType I had to either choose Group By (not what I want) or Last (closer, but returns junk results). The SQL for my query is currently:
SELECT Last(Logs.TxType) AS LastOfTxType, Max(Logs.DateTime) AS MaxOfDateTime
FROM Logs
GROUP BY Logs.dmID, Logs.relID
HAVING (((Logs.dmID)=[EnterdmID]) AND ((Logs.relID)=[EnterrelID]));
It returns the TxType field when I pass it the right parameters, but not the correct record - I would like to be rid of the Last() bit but if I remove it Access complains that I don't have it as part of an aggregate function.
Anyone that can point me in the right direction here?
Have you tried
SELECT TOP 1 TxtType
FROM Logs
WHERE (((Logs.dmID)=[EnterdmID]) AND ((Logs.relID)=[EnterrelID]))
ORDER BY DateTime DESC;
That will give you the latest single data row based on your DateTime field and other criteria.
I'm working in iMIS CMS (iMIS 200) and trying to create an IQA (an iMIS query, using SQL) that will give me a timetable of slots assigned to people per day (I've got this working); but then I want to be able to filter that timetable on a person's profile so they just see the slots they are assigned to.
(This is for auditions for an orchestra. So people make an application per instrument, then those applications are assigned to audition slots, of which there are several slots per day)
As the start/end times for slots are calculated using SUM OVER, when I filter this query by the person ID, I lose the correct start/end times for slots (as the other slots aren't in the data for it to SUM, I guess!)
Table structure:
tblContacts
===========
ContactID ContactName
---------------------------
1 Steve Jones
2 Clare Philips
3 Bob Smith
4 Helen Winters
5 Graham North
6 Sarah Stuart
tblApplications
===============
AppID FKContactID Instrument
-----------------------------------
1 1 Violin
2 1 Viola
3 2 Cello
4 3 Cello
5 4 Trumpet
6 5 Clarinet
7 5 Horn
8 6 Trumpet
tblAuditionDays
===============
AudDayID AudDayDate AudDayVenue AudDayStart
-------------------------------------------------
1 16-Sep-19 London 10:00
2 17-Sep-19 Manchester 10:00
3 18-Sep-19 Birmingham 13:30
4 19-Sep-19 Leeds 10:00
5 19-Sep-19 Glasgow 11:30
tblAuditionSlots
================
SlotID FKAudDayID SlotOrder SlotType SlotDuration FKAppID
-----------------------------------------------------------------
1 1 1 Audition 20 3
2 1 2 Audition 20 4
3 1 3 Chat 10 3
4 1 5 Chat 10 4
5 1 4 Audition 20
6 2 1 Audition 20 1
7 2 2 Audition 20 6
8 2 4 Chat 10 6
9 2 3 Chat 10 1
10 2 5 Audition 20
11 3 2 Chat 10 8
12 3 1 Audition 20 2
13 3 4 Chat 5 2
14 3 3 Audition 20 8
15 5 1 Audition 30 5
16 5 2 Audition 30 7
17 5 3 Chat 15 7
18 5 4 Chat 15 5
Current SQL for listing all the slots each day (in date/slot order, with the slot timings calculcated correctly) is:
SELECT
[tblAuditionSlots].[SlotOrder] as [Order],
CASE
WHEN
SUM([tblAuditionSlots].[SlotDuration]) OVER (PARTITION BY [tblAuditionDays].[FKAudDayID] ORDER BY [tblAuditionSlots].[SlotOrder] ROWS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING) is null
THEN
CONVERT(VARCHAR(5), [tblAuditionDays].[AudDayStart], 108)
ELSE
CONVERT(VARCHAR(5), Dateadd(minute, SUM([tblAuditionSlots].[SlotDuration]) OVER (PARTITION BY [tblAuditionDays].[FKAudDayID] ORDER BY [tblAuditionSlots].[SlotOrder] ROWS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING), [tblAuditionDays].[AudDayStart]), 108)
END
+ ' - ' +
CASE
WHEN
SUM([tblAuditionSlots].[SlotDuration]) OVER (PARTITION BY [tblAuditionDays].[FKAudDayID] ORDER BY [tblAuditionSlots].[SlotOrder] ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) is null
THEN
CONVERT(VARCHAR(5), [tblAuditionDays].[AudDayStart], 108)
ELSE
CONVERT(VARCHAR(5), Dateadd(minute, SUM([tblAuditionSlots].[SlotDuration]) OVER (PARTITION BY [tblAuditionDays].[FKAudDayID] ORDER BY [tblAuditionSlots].[SlotOrder] ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), [tblAuditionDays].[AudDayStart]), 108)
END AS [Slot],
[tblAuditionSlots].[SlotType] AS [Type],
[tblContacts].[ContactName] as [Name],
FROM
tblAuditionSlots
LEFT JOIN tblAuditionDays ON tblAuditionSlots.FKAudDayID = tblAuditionDays.AudDayID
LEFT JOIN tblApplications ON tblAuditionSlots.FKAppID = tblApplications.AppID
LEFT JOIN tblContacts ON tblApplications.FKContactID = tblContacts.ContactID
GROUP BY
[tblAuditionSlots].[SlotOrder],
[tblAuditionSlots].[SlotType],
[tblAuditionSlots].[SlotDuration],
[tblAuditionDays].[AudDayStart],
[tblContacts].[ContactName],
[tblContacts].[ContactID],
[tblAuditionDays].[AudDayID],
[tblAuditionDays].[AudDayDate]
ORDER BY
[tblAuditionDays].[DayDate],
[tblAuditionSlots].[Order]
iMIS, the CMS we're using, is limited by what you can create in an IQA (query).
You can basically insert (some) SQL as a column and give it an alias; you can add (non-calculated) fields to the order by; you can't really control the Group By (whatever fields are added are included in the Group By).
Ultimately, I'd like to be able to filter this by a Contact ID so I can see all their audition slots, but with the times correctly calculated.
From the sample data, for example:
STEVE JONES AUDITIONS
=====================
Date Slot Venue Type Instrument
----------------------------------------------------------------
17-Sep-19 10:00 - 10:20 Manchester Audition Violin
17-Sep-19 10:40 - 10:50 Manchester Chat Violin
18-Sep-19 13:30 - 13:50 Birmingham Audition Viola
18-Sep-19 14:30 - 14:35 Birmingham Chat Viola
HELEN WINTERS AUDITIONS
=======================
Date Slot Venue Type Instrument
----------------------------------------------------------------
19-Sep-19 11:30 - 12:00 Glasgow Audition Trumpet
19-Sep-19 12:45 - 13:00 Glasgow Chat Trumpet
Hopefully that all makes sense and I've provided enough information.
(In this version of iMIS [200], you can't do subqueries, in case that comes up...)
Thanks so much in advance for whatever help/tips/advice you can offer!
Chris
In my DB, there are 2 tables ie RateCalendar & Blackout.
Ratecalendar stores daily, weekly, etc. rates between 2 dates for a Car Class. eg
From 10Jan to 27 May 2016, Daily rates are say £20,
weekly rates are £50 and so on.
Similarly, for other Dates range daily weekly rates are specified.
Suppose for 2 days (4May to 5May) I blackout my car ie car won't be available for a location. Now, I have to show the record as splitted ie from 10Jan to 3May, Cars will be available ie IsAvailable->True.
From 4th May to 5th May as Blackout (ie IsAvailable->False) and
from 6th till 29May again cars will be available.
All records will not split. Only those Cars whose details are present in blackout will split.
Moreover, depending on Blackout dates, splitting will be done. For eg. in blackout if there are two records for a car ie car is blacked out for say 10Jan to 12Jan And 4th May to 5th May, then, output will be like:
Car StartDate EndDate Available
Car1 10Jan2016 12:00 12Jan2016 1:00 N
Car1 12Jan2016 1:00 4May2016 9:00 Y
Car1 4May2016 9:00 5May2016 12:00 N
Car1 5May2016 12:00 27May2016 12:00 Y
Car2 10Jan2016 10:00 27May2016 12:00 Y
So, row can be splitted into 0 or 2 or multiple depending on Blackout dates for car.
What's the best way to do this?
Below is the layout of
1) RateCalendar Table(there are 2 more fields AgencyId,LocationId as shown in Blackout Table)
RateCalId RateGroupId CarClassId StartDate EndDate DailyRate
1 1 1 10Jan2016 10:00 26May2016 11:00 20
2 1 1 27May2016 11:00 28June2016 12:00 40
2) Blackout Table
BlackoutId AgencyId LocationId BeginDate EndDate
1 1 1 10Jan2016 12:00 12Jan2016 1:00
2 1 1 4May2016 9:00 5May2016 12:00
3) BlackoutCars
BlackoutId CarId
1 1
1 2
2 1
2 2
4) BlackoutRateGroup
BlackoutId RategroupId
1 1
1 0(0=>all)
2 3
I have a table with 4 cols.
HouseNo, Date, Time and Temp.
I have managed to obtain the different HouseNos in a separate table. Now i want to insert all the dates for all the house nos.
Sample Data from table. There are like a few million rows like this.
HouseNo Date Time Temp
102 1/1/2010 10:00 67
102 2/1/2010 10:00 73
102 3/1/2010 10:00 75
103 1/1/2010 10:00 69
103 2/1/2010 10:00 63
104 1/1/2010 10:00 71
104 2/1/2010 10:00 12
Expected Output is
table 1
102 1/1/2010
102 2/1/2010
102 3/1/2010
table 2
103 1/1/2010
103 2/1/2010
table 3
104 1/1/2010
104 2/1/2010
Then i want to be able to loop through each row in the tables derieved to perform some operation on the temperature field.
If you have one ON/OFF pair per day and the OFF is always before the ON, this gets you the duration.
SELECT
HouseNo,
Date,
DATEDIFF(s,
MIN(CASE WHEN Relay='OFF' THEN Time ELSE NULL END),
MIN(CASE WHEN Relay='ON' THEN Time ELSE NULL END)
) As OffDuration
FROM YourTable
GROUP BY HouseNo, Date
But any normal real life dataset will have multiple ON/OFF pairs. Can you give more detail?
something like this ?
CREATE TABLE new_table
AS (SELECT * FROM old_table);
you can also put some WHERE part and SELECT