In Grafana I added an Exclude parameter to the Dashboard. If the Exclude field is empty, I would want it to do nothing, otherwise exclude lines that contain the regex in Exclude field.
I would want to write something like:
{label="this"} ( if "$Exclude" != "" then !~ "$Exclude" else <do nothing> fi )
How could I write this in LogQL? I tried reading documentation, but to no avail. Currently, I just set the default value of Exclude to a unique UUID, however would be nice for it to be empty.
Related
I am trying to make an Excel-like 'pivot table' in Filemaker using a Virtual List as the source of the data. The issue is I want to be able to have 'categories' down the first column that aren't fixed. The field names won't work.
My current thought is to have a table with a field of the layout name and the categories, that I would combine with the rest of the data via a ExecuteSQL (or other function).
I can get it to work with two ExecuteSQL statements, one for the categories and one for the 'bulk' of the data, using text for the WHERE in the categories eSQL, then I combine them into one and I'm set.
My issue is that I'd like to be able to get the categories using a get(LayoutName) function, making the script more flexible. Whenever I use the get(LayoutName) in the WHERE line of the SQL I get a ? for the result. I have also tried putting the layout name in a field using a get(LayoutName), then using that field as in the WHERE statement, but that also returns an error.
I admit I am a bit of a newbie at this, so the problem is likely between the keyboard and the chair with a simple syntax error. I have tried a bunch of different ways with quotes, no quotes, single quotes, etc.
Here is what I am using for pulling the categories...
Substitute ( ExecuteSQL ( "SELECT Category_List
FROM Categories_VL
WHERE Layout_Name = Get(LayoutName)" ; "" ; "") ; ", " ; $$delim )
All of the field names are correct, and if I change the LayoutName to a text that matches the Layout_Name field I want, it works fine.
I apologize if I have been too wordy, but I figure more info is better than answering a bunch of questions because I forgot something!
TIA!
I am struggling to understand your question. I hope I am addressing the correct issue.
You cannot use Filemaker functions inside an SQL query. To find records where the Layout_Name field is equal to the current layout's name, your query should be:
SELECT Category_List
FROM Categories_VL
WHERE Layout_Name = ?
and then you would supply the current layout's name as an argument:
ExecuteSQL ( "SELECT Category_List FROM Categories_VL WHERE Layout_Name = ?" ; "" ; "" ; Get ( LayoutName ) )
Note that instead of substituting the default delimiter, you can specify your own field and row separators within the ExecuteSQL() function itself, for example:
ExecuteSQL ( "SELECT Category_List FROM Categories_VL WHERE Layout_Name = ?" ; $$delim ; "" ; Get ( LayoutName ) )
See: https://help.claris.com/en/pro-help/#page/FMP_Help%2Fexecutesql.html%23
I have a column having values of:
Status changed from 'Closed' to 'Transferred'
Status changed from 'Resolved' to 'Transferred'
I have to get these two column values using Like command.
But if I keep like command there is 'Closed'(Single quotes) are there.
So that my query is not pulling the correct result .
can anyone please tell me how to ignore '' while using Like command?
I want to list the trigger no system ending with "_BI" in firebird database,
but no result with this
select * from rdb$triggers
where
rdb$trigger_source is not null
and (coalesce(rdb$system_flag,0) = 0)
and (rdb$trigger_source not starting with 'CHECK' )
and (rdb$trigger_name like '%BI')
but with this syntaxs it gives me a "_bi" and "_BI0U" and "_BI0U" ending result
and (rdb$trigger_name like '%BI%')
but with this syntaxs it gives me null result
and (rdb$trigger_name like '%#_BI')
thank you beforehand
The problem is that the Firebird system tables use CHAR(31) for object names, this means that they are padded with spaces up to the declared length. As a result, use of like '%BI') will not yield results, unless BI are the 30th and 31st character.
There are several solutions
For example you can trim the name before checking
trim(rdb$trigger_name) like '%BI'
or you can require that the name is followed by at least one space
rdb$trigger_name || ' ' like '%BI %'
On a related note, if you want to check if your trigger name ends in _BI, then you should also include the underscore in your condition. And as an underscore in like is a single character matcher, you need to escape it:
trim(rdb$trigger_name) like '%\_BI' escape '\'
Alternatively you could also try to use a regular expressions, as you won't need to trim or otherwise mangle the lefthand side of the expression:
rdb$trigger_name similar to '%\_BI[[:SPACE:]]*' escape '\'
I am trying to filter workgroup name that only contains BL or CL so I used the formula...
STARTSWITH([wrkgrp_shrt_nm], "BL") or STARTSWITH([wrkgrp_shrt_nm], "CL" )
I get the little green check, but when I hit apply it is blank and nothing pulls through
I tried another formula...
if right([wrkgrp_shrt_nm],2) = 'BL' then 1 elseif
right([wrkgrp_shrt_nm],2) = 'CL' then 1 elseif
right([wrkgrp_shrt_nm],2) then 0
end
but I am only getting an error
any suggestions?
If you want "contains", you can just call contains()
contains(wrkgrp_shrt_nm, 'BL') or contains(wrkgrp_shrt_nm, 'CL')
Does the same thing as the find() solution Fred posted, just a little easier to read in this case. I'm not sure why Fred says you cannot use IF. I use IF all the time without problems.
BTW, in case you were wondering, the square brackets around field names are optional if the field name does not include spaces or punctuation, and function names are not case sensitive.
To clarify, you're asking for "contains BL or CL", but your formula specify STARTSWITH which will be true is your field [wrkgrp_shrt_nm] starts with the string "BL" or the string "CL".
If you want "contains", you could use FIND:
FIND([wrkgrp_shrt_nm], 'BL' ) > 0 OR FIND([wrkgrp_shrt_nm], 'CL' ) > 0
You cannot use IF in a condition field, but you can use inline IF (IIF), however it's not necessary in your case.
Edit:
I can totally be wrong with my comment on IF (because I'm still new in Tableau) but I tried IF in a condition field of a filter (as the OP asked) and I can't make it work. I use IF all the time in Calculated Fields however. I'll try again...
I need to write a FM script which print one field of the records being browsed on the screen and separated by commas.However, I do not know how to select the records being currently browsed and am not able to find it in the documentation (the lack of the good keyword could be the problem).
Thank you!
It sounds like you're trying to create a list of all values for one field in the Found Set. FileMaker 13 introduced the List of Summary type, which makes this pretty easy:
First, create a Summary field, say FoundAddresses. Make it a List of your e-mail address field. This field will contain a return-delimited list of the e-mail addresses in the Found Set.
Second, create a Calculation field, say FoundAddressesCommaDelimited. Make it the following text Calculation:
Substitute (
GetSummary ( FoundAddresses ; FoundAddresses ) ;
ΒΆ ; ", "
)
This will substitute all of the returns in FoundAddresses for comma-space.