I'm used to writing in JavaScript so I am approaching this thinking about SWITCH statements and of course the classic if else...
I just want to check if the data in a row is TRUE, and if it is count it. If the value is not true, don't add it to the count.
I'm thinking something like this would work:
CASE
WHEN is_it_true_or_false = false
THEN COUNT_DISTINCT ( id ) //using id to address that specific row and add it to the count
END
It can be achieved by using either of the following CASE statements and aggregating the Calculated Field as required - COUNT_DISTINCT (Unique IDs of TRUE values) or COUNT (All TRUE values):
1) Where is_it_true_or_false is a Boolean OR String Field:
CASE
WHEN REGEXP_MATCH(is_it_true_or_false, "((?i)TRUE)") THEN id
ELSE NULL
END
2) Where is_it_true_or_false is a Boolean Field:
CASE
WHEN is_it_true_or_false = TRUE THEN id
ELSE NULL
END
Google Data Studio Report and GIF to elaborate:
Related
I got this selection of data from my sql:
I would like to add Cancelled, Disputed and Resolved together and then divide the result with the total shipped. All of this should be done with an Expression.
So x / 303 where x is the sum of the desired values.
Goal would be to get a % where I can tell how good my shipping is.
I would then like to display the result in a text label next to a graph.
How do I do that?
You should use computed columns in your data set:
Add a SUM on the column Total and a filter only matching the rows based on the column Status you want to select. The expression should look like:
if (row["Status"] == "Cancelled" || row["Status"] == "Disputed"
|| row["Status"] == "Resolved")
true
else
false
create a second computed column only containing the "Total" value where the Status is Shipped.
if (row["Status"] == "Shipped")
row["Total"]
Then create a third computed column where you divide both computed values and you are done.
row["sum"] / row["shipped"]
create a new parameter and refer the image
create new static values and allow multiple values to be selected.
So, accordingly edit your SQL queries
I have a column with mixed types of Number and Text and am trying to separate them into different columns using an if ... then ... else conditional. Is there an ISNUMBER() or ISTEXT equivalent for power query?
Here is how to check type in Excel Powerquery
IsNumber
=Value.Is(Value.FromText([ColumnOfMixedValues]), type number)
IsText
=Value.Is(Value.FromText([ColumnOfMixedValues]), type text)
hope it helps!
That depends a bit on the nature of the data and how it is originally encoded. Power Query is more strongly typed than Excel.
For example:
Source = Table.FromRecords({[A=1],[A="1"],[A="a"]})
Creates a table with three rows. The first row's data type is number. The second and third rows are both text. But the second row's text could be interpreted as a number.
The following is a query that creates two new columns showing if each row is a text or number type. The first column checks the data type. The second column attempts to guess the data type based on the value. The guessing code assumes everything that isn't a number is text.
Example Code
Edit: Borrowing from #AlejandroLopez-Lago-MSFT's comment for the interpreted type.
let
Source = Table.FromRecords({[A=1],[A="1"],[A="a"]}),
#"Added Custom" = Table.AddColumn(Source, "Type", each
let
TypeLookup = (inputType as type) as text =>
Table.FromRecords(
{
[Type=type text, Value="Text"],
[Type=type number, Value="Number"]
}
){[Type=inputType]}[Value]
in
TypeLookup(Value.Type([A]))
),
#"Added Custom 2" = Table.AddColumn(#"Added Custom", "Interpreted Type", each
let
result = try Number.From([A]) otherwise "Text",
resultType = if result = "Text" then "Text" else "Number"
in
resultType
)
in
#"Added Custom 2"
Sample output
Put it in logical test format
Value.Type([Column1]) = type number
Value.Type([Column1]) = type text
The function Value.Type returns a type, so by putting it in equation thus return a true / false.
Also, equivalently,
Value.Type([Column1]) = Date.Type
Value.Type([Column1]) = Text.Type
HTH
ISTEXT() doesn't exist in any language I've worked with - typically any numeric or date value can be converted to text so what would be a false result?
For ISNUMBER, I would solve this without any code by changing the Data Type to a number type e.g. Whole Number. Any rows that don't convert will show Error - you can then apply Replace Errors or Remove Errors to handle them.
Use Duplicate Column first if you don't want to disturb the original column.
I agree with Mike Honey.
I have a SKU code that is a mix of Char and Num.
Normally the last 8 Char are Numbers but in some weird circumstances the SKU is repeated with an additional letter but given the same EAN which causes chaos.
by creating a new temp column using Text.End(SKU, 1) I get only the last character. I then convert that column to Whole Number. Any Error rows are then removed to leave only the rows I need. I then delete the temp Column and am left with the Rows I need in the format I started with.
I'm making a report that will display a list of costumers and some numeric values.
I use a formula in order to sort my group, wich is the following :
if {Db.SortOrder} = 0 then
{Db.CostumerName}
else
ToText({Db.Value},'00000000',0,'')
In this way i can group by costumer name or value, the problem is that i need to use a different sorting order for them, ascending order when i group by CostumerName and descending when i group by Value. How can i achieve that ? I've tried the "Sort group by formula" using crAscendingOrder,crDescendingOrder but it said i needed tu use a costant and not a variable (in my case i used db.SortOrder)
My approach:
First, create a parameter field ({?Sorted Field}) to choose the sorted field: String; static list that includes 'Customer' and 'Value'; default value is 'Customer'
Next, create a custom function that will convert a string into its ASCII representation, allowing the order to be changed:
// ASCII()
Function (Stringvar characters, Optional Numbervar direction:=crAscendingOrder)
Local numbervar i;
Local stringvar c;
For i:= 1 To Len(characters) Do (
If direction=crAscendingOrder Then
c:=c + ToText( Ascw(Mid(characters,i,1)), "#")
Else
c:=c + ToText( 256- Ascw(Mid(characters,i,1)), "#")
);
c;
Next, create a formula field that will be used for sorting:
// {#Sorted Field}
Select {?Sorted Field}
Case "Customer": {Db.Customer}
Case "Value": ASCII(ToText({Db.Value},'00000000',0,''), crDescendingOrder)
Default: {Db.Customer}
Finally, reference this field in the record-sort expert:
in my case i only needed to choose the field to sort by. i created the parameter field called SortField as static text and created the three friendly values i wanted to show, then created the formula that referenced it. i have crystal 2011 so my formula looks like this:
// {#Sorted Field}
Select {?SortField}
Case "BIN":{V_ITEM_MASTER.BIN}
Case "ORDER REF":{V_ITEM_MASTER.HEAT}
Case "PART":{V_ITEM_MASTER.PART}
Default: {V_ITEM_MASTER.BIN}
I have a query below from source this is how Active flag for target is derived
select case when active_end_date is null then 'Y' else 'N' end
from csi_item_instances cii
where instance_id = <<INSTALL BASE ID>> --- (MP.INSTALL_BASE_ID)
I am comparing the active field value using the SQL below, is there better way to do this?
select * from stgdba.Stg_s_csi_item_instances cii, MDHDBA.M_CUSTOMER_PRODUCT mp
where cii.instance_id= MP.INSTALL_BASE_ID
and cii.active_end_date is null
and MP.ACTIVE_FLAG = 'N'
If that value is to be permanently calculated like that, you could do that in a view / computed column, which would make the logic a bit more permanent and not repeated all over the place.
(Stylistically, I would also try using ANSI joins a bit more.)
I am working on some legacy code, and I have the following wonderful issue. I am hoping some FoxPro experts can help!
The infrastructure of this legacy system is setup so that I have to use the built-in expression engine to return a result set, so no go on the SQL (i know that would be so much easier!)
Here is the issue.
I need to be able to do something like
PUBLIC ARRAY(20) ArrayOfValuesToFilterBy
SELECT dataTable
SET FILTER TO logicalField = .T. and otherField NOT INLIST(ArrayOfValuesToFilterBy)
However, I know this wont work, I just need the equivalency...not using SQL.
I can generate the list of values to filter by via SQL, just not the final record select due to the legacy infrastructure constraint.
Thanks!
First, a logical field you do not have to do explicit
set filter to Logicalfield = .t.
you can just do
set filter to LogicalField
or
set filter to NOT LogicalField
Next, on the array. VFP has a function ASCAN() which will scan an array for a value, if found, will return the row number within the array that matches what you are looking for.
As for arrays... ex:
DIMENSION MyArray[3]
MyArray[1] = "test1"
MyArray[2] = "something"
MyArray[3] = "anything else"
? ASCAN( MyArray, "else" ) && this will return 0
? ASCAN( MyArray, "anything else" ) && this will return 3
If you are doing a "set filter", the array needs to be "in scope" for the duration of the filter. If you set filter in a procedure the array exists, leave the procedure and the array is gone, you're done.
So, you could do
set filter to LogicalField and ASCAN( YourArray, StringColumnFromTable ) > 0
Now, if you want a subset to WORK WITH, you can do a SQL-Select and pull the data into a CURSOR (temporary read-write table) that has the same capabilities of the original table (except auto-increment when adding)...
I typically name my temporary cursors prefixed with "C_" for "CURSOR OF" so when I'm working with tables, I know if its production data, or just available for temp purposes for quicker display, presentation, extractions from other origins as needed.
use in select( "C_FinalRecords" )
select * from YourTable ;
where LogicalField ;
and ASCAN( YourArray, StringColumnFromTable ) > 0;
into cursor C_FinalRecords READWRITE
Then, you can just use that...
select C_FinalRecords
scan
do something with the record, or values of it...
endscan
or.. bind to a grid in a form, etc...
The INLIST() function takes an expression to search for and up to 24 expressions of the same data type to search.
SELECT dataTable
SET FILTER TO logicalField = .T. AND NOT INLIST(otherField, 'Value1', 'Value2', 'Value3', 'Value4')
I am making some assumptions here, that what you want to do is create a filter with a dynamic in list statement ? If this is correct have a play with this example :-
lcList1="ABCD"
lcList2="EFGH"
lcList3="IJKL"
lcList4="MNOP"
lcList5="QRST"
lcFullList=""
lcFullList=lcFullList+"'"+lcList1+"',"
lcFullList=lcFullList+"'"+lcList2+"',"
lcFullList=lcFullList+"'"+lcList3+"',"
lcFullList=lcFullList+"'"+lcList4+"',"
lcFullList=lcFullList+"'"+lcList5+"'"
lcField="PCode"
lcFilter="SET FILTER TO INLIST ("+lcField+","+lcFullList+")"
The results of the above would create the following filter statement and store it in lcFilter
SET FILTER TO INLIST (PCode,'ABCD','EFGH','IJKL','MNOP','QRST')
you can then use macro substitution
Select dataTable
&lcFilter
Bear in mind that there is likely to be some limitations on how many items you can define in a INLIST() statement