I have a transaction style table in Access 2007. For example
ID Start Date End Date Type Sub Type
1 1/01/2012 15/02/2012 Supermarket Bread
1 16/02/2012 20/03/2012 Supermarket Milk
1 21/03/2012 30/09/2012 Supermarket Cheese
1 1/11/2012 15/11/2013 Hardware Nails
Want I need to do is transform this into this:
ID Start Date End Date Type
1 1/01/2012 30/09/2012 Supermarket
1 1/11/2012 15/11/2013 Hardware
A single record per ID with the start date from the first 'supermarket' record through to the last 'supermarket' record.
Appreciate any suggestions/help with if this is possible in Access.
It looks like you want an aggregate query which groups by ID and Type. You can then use Min() and Max() to retrieve the earliest Start Date and the latest End Date within each group.
SELECT
ID,
[Type],
Min([Start Date]) AS start_date,
Max([End Date]) AS end_date
FROM YourTable
GROUP BY
ID,
[Type];
Related
I have a sqlite3 database maintained on an AWS exchange that is regularly updated by a Python script. One of the things it tracks is when any team generates a new post for a given topic. The entries look something like this:
id
client
team
date
industry
city
895
acme industries
blueteam
2022-06-30
construction
springfield
I'm trying to create a table that shows me how many entries for construction occur each day. Right now, the entries with data populate, but they exclude dates with no entries. For example, if I search for just
SELECT date, count(id) as num_records
from mytable
WHERE industry = "construction"
group by date
order by date asc
I'll get results that looks like this:
date
num_records
2022-04-01
3
2022-04-04
1
How can I make sqlite output like this:
date
num_records
2022-04-02
3
2022-04-02
0
2022-04-03
0
2022-04-04
1
I'm trying to generate some graphs from this data and need to be able to include all dates for the target timeframe.
EDIT/UPDATE:
The table does not already include every date; it only includes dates relevant to an entry. If no team posts work on a day, the date column will jump from day 1 (e.g. 2022-04-01) to day 3 (2022-04-03).
Given that your "mytable" table contains all dates you need as an assumption, you can first select all of your dates, then apply a LEFT JOIN to your own query, and map all resulting NULL values for the "num_records" field to "0" using the COALESCE function.
WITH cte AS (
SELECT date,
COUNT(id) AS num_records
FROM mytable
WHERE industry = "construction"
GROUP BY date
ORDER BY date
)
SELECT dates.date,
COALESCE(cte.num_records, 0) AS num_records
FROM (SELECT date FROM mytable) dates
LEFT JOIN cte
ON dates.date = cte.date
Thanks in advance.
I have Customer records that look like this:
Customer_Number
Create_Date
34343
01/22/2001
54554
03/03/2020
85296
01/01/2001
...
I have about a thousand of these records (customer number is unique) and the bossman wants to see how the number of customers has grown over time.
The output I need:
Customer_Count
Monthly_Bucket
7
01/01/2021
9
02/01/2021
13
03/01/2021
20
04/01/2021
The customer count is cumulative and the Monthly Bucket will just feed the graphing package to make a nice bar chart answering the question "how many customers to we have in total in a particular month and how is it growing over time".
Try the following SELECT SQL with a sub-query:
SELECT Customer_Count=
(
SELECT COUNT(s.[Create_Date])
FROM [Customer_Sales] s
WHERE MONTH(s.[Create_Date]) <= MONTH(t.[Create_Date])
), Monthly_Bucket=MONTH([Create_Date])
FROM Customer_Sales t
WHERE YEAR(t.[Create_Date]) = ????
GROUP BY MONTH(t.[Create_Date])
Where [Customer_Sales] is the sales table and ??? = your year
I have a table with multiple records submitted by a user. In each record is a field called COMPLETE to indicate if a record is fully completed or not.
I need a way to get the latest records of the user where COMPLETE is 0, LOCATION, DATE are the same and no additional record exist where COMPLETE is 1. In each record there are additional fields such as Type, AMOUNT, Total, etc. These can be different, even though the USER, LOCATION, and DATE are the same.
There is a SUB_DATE field and ID field that denote the day the submission was made and auto incremented ID number. Here is the table:
ID NAME LOCATION DATE COMPLETE SUB_DATE TYPE1 AMOUNT1 TYPE2 AMOUNT2 TOTAL
1 user1 loc1 2017-09-15 1 2017-09-10 Food 12.25 Hotel 65.54 77.79
2 user1 loc1 2017-09-15 0 2017-09-11 Food 12.25 NULL 0 12.25
3 user1 loc2 2017-08-13 0 2017-09-05 Flight 140 Food 5 145.00
4 user1 loc2 2017-08-13 0 2017-09-10 Flight 140 NULL 0 140
5 user1 loc3 2017-07-14 0 2017-07-15 Taxi 25 NULL 0 25
6 user1 loc3 2017-08-25 1 2017-08-26 Food 45 NULL 0 45
The results I would like is to retrieve are ID 4, because the SUB_DATE is later that ID 3. Which it has the same Name, Location, and Date information and there is no COMPLETE with a 1 value.
I would also like to retrieve ID 5, since it is the latest record for the User, Location, Date, and Complete is 0.
I would also appreciate it if you could explain your answer to help me understand what is happening in the solution.
Not sure if I fully understood but try this
SELECT *
FROM (
SELECT *,
MAX(CONVERT(INT,COMPLETE)) OVER (PARTITION BY NAME,LOCATION,DATE) AS CompleteForNameLocationAndDate,
MAX(SUB_DATE) OVER (PARTITION BY NAME, LOCATION, DATE) AS LastSubDate
FROM your_table t
) a
WHERE CompleteForNameLocationAndDate = 0 AND
SUB_DATE = LastSubDate
So what we have done here:
First, if you run just the inner query in Management Studio, you will see what that does:
The first max function will partition the data in the table by each unique Name,Location,Date set.
In the case of your data, ID 1 & 2 are the first partition, 3&4 are the second partition, 5 is the 3rd partition and 6 is the 4th partition.
So for each of these partitions it will get the max value in the complete column. Therefore any partition with a 1 as it's max value has been completed.
Note also, the convert function. This is because COMPLETE is of datatype BIT (1 or 0) and the max function does not work with that datatype. We therefore convert to INT. If your COMPLETE column is type INT, you can take the convert out.
The second max function partitions by unique Name, Location and Date again but we are getting the max_sub date this time which give us the date of the latest record for the Name,Location,Date
So we take that query and add it to a derived table which for simplicity we call a. We need to do this because SQL Server doesn't allowed windowed functions in the WHERE clause of queries. A windowed function is one that makes use of the OVER keyword as we have done. In an ideal world, SQL would let us do
SELECT *,
MAX(CONVERT(INT,COMPLETE)) OVER (PARTITION BY NAME,LOCATION,DATE) AS CompleteForNameLocationAndDate,
MAX(SUB_DATE) OVER (PARTITION BY NAME, LOCATION, DATE) AS LastSubDate
FROM your)table t
WHERE MAX(CONVERT(INT,COMPLETE)) OVER (PARTITION BY NAME,LOCATION,DATE) = 0 AND
SUB_DATE = MAX(SUB_DATE) OVER (PARTITION BY NAME, LOCATION, DATE)
But it doesn't allow it so we have to use the derived table.
So then we basically SELECT everything from our derived table Where
CompleteForNameLocationAndDate = 0
Which are Name,Location, Date partitions which do not have a record marked as complete.
Then we filter further asking for only the latest record for each partition
SUB_DATE = LastSubDate
Hope that makes sense, not sure what level of detail you need?
As a side, I would look at restructuring your tables (unless of course you have simplified to better explain this problem) as follows:
(Assuming the table in your examples is called Booking)
tblBooking
BookingID
PersonID
LocationID
Date
Complete
SubDate
tblPerson
PersonID
PersonName
tblLocation
LocationID
LocationName
tblType
TypeID
TypeName
tblBookingType
BookingTypeID
BookingID
TypeID
Amount
This way if you ever want to add Type3 or Type4 to your booking information, you don't need to alter your table layout
Good day
May you kindly assist me, I have a SQL view That has txDate, reference, Amount
like
select TxDate, Reference, Amount
FROM Transactions
Then I have a Table called Period, that has PeriodId, StartDate and EndDate
so the period is by month,
LIKE
PeriodID StartDate EndDate
1 2017/01/01 2017/01/31
2 2017/02/01 2017/02/29
3 2017/03/01 2017/03/31
4 2017/04/01 2017/04/30
And so on up until December which will be period 12,
So i want to have the Query to Search the Period table using the txDate in my SQL View, for Example
if txDate is '2017/02/25'
The Query must return the PeriodID in Which the TxDate is Between StartDate and EndDate, so in this instance it should be 2.
So my result should be something like this
txDate Reference Amount PeriodID
2017/02/25 INVOO1 2000 2
2017/01/04 REC002 30 1
2017/03/05 SALE 5000 3
How do I make that JOIN on Searching that Table to bring the PEriodID onto my SQL View...??
If you're sure the start- and end-date within the Period table never overlap and that there's always a record in the Period table that matches your TxDate, it's quite simple:
SELECT tran.TxDate,
tran.Reference,
tran.Amount,
peri.idPeriod
FROM Transactions tran
JOIN Period peri
ON tran.TxDate BETWEEN peri.PeriodStartDate and peri.PeriodEndDate,
I've googled but I cannot get the point
I've a fact table like this one
fact_order
id, id_date, amount id_supplier
1 1 100 4
2 3 200 4
where id_date is the primary key for a dimension that have
id date month
1 01/01/2011 january
2 02/01/2011 january
3
I would like to write a calculated member that give me the last date and the last amount for the same supplier.
Last date and last amount -- it's a maximum values for this supplier?
If "yes", so you can create two metrics with aggregation "max" for fields id_date and amount.
And convert max id_date to appropriate view in the following way:
CREATE MEMBER CURRENTCUBE.[Measures].[Max Date]
AS
IIF([Measures].[Max Date Key] is NULL,NULL,
STRTOMEMBER("[Date].[Calendar].[Date].&["+STR([Measures].[Max Date Key])+"]").name),
VISIBLE = 1 ;
It will works, If maximum dates in your dictionary have maximum IDs. In my opinion You should use date_id not 1,2,3..., but 20110101, 20110102, etc.
If you don't want to obtain max values - please provide more details and small example.