Good day to everyone! Hope all is well!
I am looking to run an update query or a group of queries that looks at my Date_Start and Date_End to determine if the Units (quantity of the respective record) fall in my defined current quarter 1/2/3/4 from another table (this table is a master table I’m using to provide the dates that I need to consider for defining the quarters).
I’ve been able to create queries that do this and then join them together to basically display the units out by quarter based on their respective start/end dates. The problem I am running into is this process takes a decent amount of time for the queries to populate that will drastically effect other processes down the line.
Thus we get to my desire. I am trying to no avail to create an update query that will update the quarter fields in my table based off of the queries I built to determine if the records start/end date fall in the respective quarter. I figure that running this update when records change will be an ok run time vs when I’m running reports or running an email script for the reports.
I have tried pulling in the table and query, joining them as equal on ID (the query pulls in the table's IDs), and selecting my field “CQ1” from the table, and setting the Update ether the respective field from the table or the query (which is the same as the field in the table).
All I get are the current values of the field in the data sheet view and an error of “Operation must use an updateable query.”
I have even tried placing a zero to see if that would do it with no luck. I have verified that all the fields are the same data type.
What am I doing wrong? Thanks!
Apologies to everyone.....I think my conscious brain was trying to overly complicate the process and while talking to a buddy about my issue distractedly created a new update query that worked. It all tied down to that I forgot to put a criteria on my quarter filed of is not null I believe. Thanks for anyone that has read this and is responding while I’m typing this or for those of you formulating a response.
Related
Newbie to access here.
I'm having an issue that I can't quite get my head around.
I have a very simple db for recording accounting transactions.
It contains, one table for the transactions, one query that returns the transaction amounts between two dates (with a total) and a report that shows the results of the query.
My issue is that I'm trying to add a total for ALL records into the report but I can't figure out how to do it without it just showing the totals from the query.
I've tried referencing the table directly but it returns a name error
I'd like to be able to do this without using VBA or SQL, any help would be most appreciated.
Thanks
I have two tables in PowerBI and a slicer, presented below in an abstracted way.
I want to know the number of orders placed for a customer in a given date range. This data is a sample for illustration - there are actually around 10,000 Customers and 500,000 Orders and both tables have many other fields, Ids etc.
My challenge -
Whilst this is easy enough do by relating the tables and doing a count, the difficulty comes in when I still want to see customers with 0 orders and on top of that I want this to work within a date range. In other words, instead of the customers with no orders disappearing form the list, I want them to appear in the list, but with a 0 value, depending on the date range. It would also be good if this could act as a measure, so I can see the number of total customers that have not ordered on a month by month basis. I have tried outer joins, merge queries, cross joins and lookups and cant seem to crack it.
Example 1: If I set the order date slicer to be: 02/01/2017 to 01/01/2018 I want the following results
Example 2: If I set the order date slicer to be: 03/01/2017 to 06/01/2017 I want the following results
Any help appreciated!
Thanks
This is entirely possible with a Measure. When you're using the Order field to count the rows for each customer, you're essential doing a COUNTROWS() function.
With your relationship still active, we can Prefix this in a measure to check for the blanks, and in those cases, return 0. something like this would work
Measure = IF(ISBLANK(COUNTROWS(Orders)),0,COUNTROWS(Orders))
In this case, 'Orders' is the table containing the Order and Order Date fields
My fact table contains details for clients who attend a course.
To ensure i can get a list of clients registered on any particular day, I have not related the date dimension to the fact table.
Instead i created a measure that does basic between logic (where startDate <= selectedDate && endDate >=SelectedDate)
This allows me to find all clients registered on one single selected day.
There are a few drawback to this however:
-I have to ensure the report user only selects a single day, i.e. they cannot select a date range.
-I cant easily do counts for samePeriodLastMonth or Year.
Is there a better design i should consider that will still allow me to see counts of registered clients on any given day, along with allowing me to use SamePeriodLastMonth/Year functionality?
Would you mind uploading the structure of your fact and dim tables?
Just a thought bubble: if you would like to measure counts for a program over calendar years, I believe you would definitely need to create a Date dimension. Also depending on your reporting needs you might want to consider whether you need an Accumulating Snapshot Fact table.
Please find further details on this:
http://www.kimballgroup.com/2012/05/design-tip-145-time-stamping-accumulating-snapshot-fact-tables/
Cheers
Nithin
I am to store quite large amount of boolean values in database used by Rails application - it needs to store 60 boolean values in single record per day. What is best way to do this in Rails?
Queries that I will need to program or execute:
* CRUD
* summing up how many true values are for each day
* possibly (but not nessesarily) other reports like how often true is recorded in each of field
UPDATE: This is to store events that may or may not occur in 5 minute intervals between 9am and 1pm. If it occurs, then I need to set it to true, if not then false. Measurements are done manually and users will be reporting these information using checkboxes on the website. There might be small updates, but most of the time it's just one time entry and then queries as listed above.
UPDATE 2: 60 values per day is per one user, there will be between 1000-2000 users. If there isn't some library that helps with that, I will go for simplest approach and deal with it later if I will get issues with performance. Every day user reports events by checking desired checkboxes on the website, so there is normally a single data entry moment per day (or few if not done on daily basis).
This is dependent on a lot of different things. Do you need callbacks to run? Do you need AR objects instantiated? What is the frequency of these updates? Is it done frequently but not many at a time or rarely but a bunch at once? Could you represent these booleans as a mask instead? We definitely need more context.
Why do these need to be in a single record? Can't you use a 'days' table to tie them all together, then use a day_id column in your 'events' table?
Specify in the Day model that it 'has_many :events' and specify in the Event model file that it 'belongs_to :day'. Then you can find all the events for a day with just the id for the day.
For the third day record, you'd do this:
this_day = Day.find 3
Then you can you use 'this_day.events' to get all the events for that day.
You'll need to decide what you wish to use to identify each day so you query for a day's events using something that you understand. The id column I used above to find it probably won't work.
You could use the timestamp first moment of each day to do that, for example. Or you could rely upon the 'created_at' column of the table to be between the start and end of a day
And you'll want to be sure to thing about what time zone you are using and how this will be stored in the database.
And if your data will be stored close to midnight, daylight savings time could also be an issue. I find it best to use GMT to avoid that issue.
Good luck.
I am trying to figure out the way to pull all the items that were on my plate between certain dates. Is this possible? Could you please help me to figure out how to write a query for that? Thanks.
The best that I know how to do is to set 'Assigned To' Was Ever #Me, then manually scan the list of work items returned (setting other fields as necessary to filter the results). In the UI, at least, there isn't a way to query on historical data.
You can do this via query window as well, below is my query that i use to see what have i been working on in the past two sprints.
This will give you any tickets you worked on regardless of who they are currently assigned to (system test / uat or whatever).
You can add more clauses and have Changed Date > xxx AND ChangedDate < xxx to find what you are looking for in any given dates.