We are creating several charts in superset and with the partition type chart the ORDER BY seems to be hard coded and we cannot change it. The goal is too have the months on the left in the correct order (the column in this case is Month). When run in sql lab it works in correct order but in the chart view we cannot change the ordering
Any suggestions?
I assume you mean the dates on the right here?
I work with superset and I have experienced this limitation that does appear to be hard-coded into the ordering once a chart is made. I would suggest if it wasn't too much hassle to add another column to your database of the text value and follow the patter of;
WHERE "Month" = 'January' SET "OrderingColumn" = 'A'
WHERE "Month" = 'February' SET "OrderingColumn" = 'B'
etc etc
Then in your charts you can try: ORDER BY "OrderingColumn"
It is a bit of an inconvenience but if you are able to manipulate your data by changing tables or views this seems to be a solution you could use.
I hope this may be useful even to change the way of approaching the problem.
Related
I'm trying to create an array formula to auto-populate the total count of values for each column as columns are added.
I've tried doing this using a combination of count and indirect, as well as tried my hand at query, but I can't seem to get it to show unique value counts for each column.
This is my first time attempting to use query, and at first it seemed possible from reading through the documentation on the query language, but I haven't been able to figure it out.
Here's the shared document: https://docs.google.com/spreadsheets/d/15VwsL7uTsORLqBDrnT3VdwAWlXLh-JgoJVbz7wkoMAo/edit?usp=sharing
I know I can do this by writing a custom function in apps script, but I'd like to use the built-in functions if I can for performance reasons (there is going to be a lot of data), and I want quick refresh rates.
try:
=ARRAYFORMULA(IF(B5:5="",,TRANSPOSE(MMULT(TRANSPOSE(N(B6:99<>"")), SIGN(ROW(B6:99))))))
In B3 try
=ArrayFormula(IF(LEN(B5:5), COUNTIF(IF(B6:21<>"", COLUMN(B6:21)), COLUMN(B6:21)),))
I have a slight issue with my tables in POWERBI. In short, I have a missing link in one of my relations. As a result, instead of returning NOTHING which is logical and actually what I would like, it returns EVERYTHING.
A bit more details, I have the multiple tables with relations between them. The problem is that I have a few task_group pointing toward shipments that do not exist. In my visualization, I am trying to access data (a count of the number of Packages linked to a shipment) that is linked to a shipment. The logical thing for me would be that "If there is no shipment fitting the number that is given in the shipment table, then you cannot count the number of packages linked to that shipment".
But PowerBI beg to differ. His idea is "If I cannot find a shipment to link to package, i'm going to take every single package regardless of shipment". As a result, a group of task that do not have any package end up showing as having all the packages instead. How can I tell powerbi to return nothing if he doesn't find anything instead of returning everything?
Image of my relationships
I think Power BI behaves slightly unintuitively where there are nulls on one side of a join.
Have you tried filtering to only include where shipment_id is not blank?
If the problem is you having NULLs in one side of the relationship, the best way to tackle this would be to replace the NULLs with something else. Now, you can do it in two ways:
Edit the Shipment number NULLs to something else in the Power query while importing (Some number which is not likely to be an actual shipment, maybe 0)
Create a calculated field in DAX replacing the blanks/NULLs and use that in the relationship instead
But I think you may have NULLs in both the sides of the relationship. That is the only explanation I can think of, why Power BI is behaving this way. Either way, the above solutions should fix it.
In the official documentation there is a text for which I can't totally understand the reason:
When working with time series, do not leverage the transactional behavior of rows. Changes to data in an existing row should be stored as a new, separate row, not changed in the existing row. This is an easier model to construct, and it enables you to maintain a history of activity without relying upon column versions.
The last sentence is not obvious and concrete, so it doesn't convince me. For now, using versioning for updating the cell's data still looks to me like a good fit for the update task. At least versions are managed by BigTable, so it's simplier solution.
Can anybody please provide more obvious explanation of why the versioning shouldn't be used in that use case?
Earlier in that page under Patterns for row key design, a bit more detail is explained. The high level view being that using row keys instead of column versions will:
Make it easier to run queries across your data, allowing for scanning of less data.
Avoid going over the recommended maximum row size.
The one caveat being:
It is acceptable to use versions of a column where the use case is
actually amending a value, and the value's history is important. For
example, suppose you did a set of calculations based on the closing
price of ZXZZT, and initially the data was mistakenly entered as
559.40 for the closing price instead of 558.40. In this case, it might be important to know the value's history in case the incorrect value
had caused other miscalculations.
Need some help with PowerApps - I am trying to filter the gallery where the Person column (ROMEmail) equals the logged in user.
This code is working, but the blue circle of death comes up - whilst in test at the moment, i dont have over 500 records, but will do within a month of trialling this
Any ideas on how to workaround this? Using a collection or variable perhaps? I haven't really used these yet so a detailed resolution would be greatly appreciated.
SortByColumns(Filter('Reviews', StartsWith(LocationName, TextSearchBox1.Text),ROMEmail.Email = User().Email), "Modified", If(SortDescending1, Descending, Ascending))
A collection would be your best choice.
To add a collection in your app replace the code where you grab your data by something like this:
ClearCollect(localData,'Reviews')
This collects all the data in a locally collection. The ClearCollect replaces all your data by the new ones.
After this you can sort and filter directly on your collection. For example in a gallery. Using your code it would look like this:
SortByColumns(Filter(localData, StartsWith(LocationName, TextSearchBox1.Text),ROMEmail.Email = User().Email), "Modified", If(SortDescending1, Descending, Ascending))
I am having difficulty with a duration field on my form/table.
The users need to indicate in HH:MM how long a meeting took.
What datatype should the column have in the Table. Currently it is TIMESTAMP
How can I make the field have an input mask of 'HH:MM'. What I would like is for the user to be able to type '0130' and the field format it to '01:30' immediately.
Reporting on these times is required so I assume that entering the data as VARCHAR will not help.
Honestly, this is not such an easy subject as people might think it is, and probably more from a user interface point of view than technically.
The easiest way out? The apex datetimepicker. And honestly, if you're new to the technology I'd advise you to use this, especially if you want to steer clear from javascript/jquery initially.
Let's put it this way: the datepicker is fine and works good, but time is really not that fantastic.
Not all that hot right. The value in the input item does not change until you hit 'Close'. The time component seems like a last second sloppy addition honestly. It works, however. (But I'd still set the field to readonly so that a user can not enter text directly.)
Allowing text to be entered means it needs to be validated according to the correct format mask. And format masks differ between those in jQuery (the datepicker) and those in Oracle, and it might be possible that your oracle format mask is not possible in the datepicker, adding even more complexity. There is also no 'live' date validation (nor datetime), there is only the builtin item validation which will check the format mask and which fires on submit.
Anyway, I'd say take a look at it. Set your item to be displayed as a Date Picker, and use the format mask under settings to get the datetime picker:
Now you can push it further of course, though it'll cost some effort. There are several options though.
Personally, when I've implemented date+time I've always split the date from the time in 2 fields. 1 with the date component, and one with the time component, while keeping the item with the original value hidden (so 3 items total). I then use the datepicker on the date item, and use jquery timepicker plugins on the time item. On submit I then add the 2 values together and parse them in a date, and put this value in the original item again (to allow the standard processing to work on items with source set to database column).
One example of a timepicker is here, another one here. They're both not that hard to implement. They have good documentation too. I don't want to dive in the implementation of it here though, I advise you take a look at it first and see how much it scares you. (I'd set up an apex demo but am a bit pressed for time at the moment).
For example, using Trent's (second link) plugin:
put the js file in the apex images directory. I made a folder "/custom" in my case
add the required js files to the page (assuming apex 4.2, put this in javascript file urls)
#IMAGE_PREFIX#libraries/jquery-ui/1.8.22/ui/jquery.ui.slider.js
#IMAGE_PREFIX#custom/jquery-ui-timepicker-addon.js
use onload code such as this to initialize a field
$("#P95_DEPARTURE_TIME").timepicker({hourGrid: 4,minuteGrid: 10});
It'll end up looking as this:
Any further interaction between pickers will need to be handled in javascript code if you want it live. Don't forget server validations.
As for items, my hidden date item has format mask DD-MON-YYYY HH24:MI. Format masks are important, because items are bind variables, and bind variables are varchar2. The value in the html form is also just that, text.
For example, this is on my displayed date item, with a similar setup for the time item:
Then in an after-submit computation I glue the values together again and put them in the m that'll save the value to the database:
:P95_DEPARTURE_DATE_DISP||' '||:P95_DEPARTURE_TIME
This is just a short guide on the setup though, but might be interesting once you're a bit more familiar with the product.
There are also 2 timepicker plugins on apex-plugin, but honestly I don't find them interesting at all when compared to these already existing fine jquery plugins.
Give it some thought and look at it.
If quarters are enough..
item: text field with autocomplete
SELECT ss|| ':' || dd ss_dd
FROM
(SELECT to_char(trunc(sysdate)+(level - 1)/ 24,'HH24')ss
FROM dual CONNECT BY level <= 24),
(SELECT lpad(mod(15 * level, 60), 2, '0') dd
FROM dual CONNECT BY level <= 4)
APEX 4.2: Just to shed some light for any future viewings; now there are loads of Apex plugins for the purpose of picking Date/Time or both returning variations of date time formats as you would required. For e.g. as in your case HH:MM or HH24:MI.
I have personally used TimePicker plugin from http://www.apex-plugin.com which I have no problem in recommending.