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I have a table where i used to concatenate the excel sheets based on monthly basis and i have City and MonthYear column which is of MMM-YY data type. Now in resident load i should be able to get the latest city where he / she is in.. And I tried the following :
Convert_Date:
Load
[User ID],
City ,
date(MonthYear,'MMYY') AS MY
Resident [Emp];
Max_Date:
load
max(DATE(MY,'MMYY')) AS M
resident Convert_Date Group by [User ID] ;
But I am not able to get the latest city.
Try like:
Convert_Date:
Load
[User ID],
City ,
date#(MonthYear,'MMYY') AS MY
Resident [Emp];
Max_Date:
load
[User ID],
Date(max(MY)) AS M,
firstSortedValue(City, -MY) as LatestCity
resident Convert_Date Group by [User ID] ;
in latest city I couldn't find any data
Try like:
firstSortedValue(Distinct City, -MY) as LatestCity
Note: You might see a warning for distinct, just ignore that.
no this is not helping me out
Could you post a qvw with sample data?
no thats some what confidential data. is there any other alternative way to find out the latest city?
thanks i got it
try using this
FirstSortedValue - script function ‒ QlikView
FirstSortedValue() returns the value from the expression specified in value that corresponds to the result of sorting the sort_weight argument, taking into account rank, if specified. If more than one resulting value shares the same sort_weight for the specified rank, the function returns NULL.
The sorted values are iterated over a number of records, as defined by a group by clause, or aggregated across the full data set if no group by clause is defined.
Syntax:
FirstSortedValue ([ distinct ] value, sort-weight [, rank ])
Return data type: dual
Arguments:
Argument | Description |
---|---|
value Expression | The function finds the value of the expression value that corresponds to the result of sorting sort_weight. |
sort-weight Expression | The expression containing the data to be sorted. The first (lowest) value of sort_weight is found, from which the corresponding value of the value expression is determined. If you place a minus sign in front of sort_weight, the function returns the last (highest) sorted value instead. |
rank Expression | By stating a rank "n" larger than 1, you get the nth sorted value. |
distinct | If the word DISTINCT occurs before the function arguments, duplicates resulting from the evaluation of the function arguments are disregarded. |
Examples and results:
Add the example script to your document and run it. Then add, at least, the fields listed in the results column to a sheet in our document to see the result.
Example | Result |
---|---|
Temp: LOAD * inline [ Customer|Product|OrderNumber|UnitSales|CustomerID Astrida|AA|1|10|1 Astrida|AA|7|18|1 Astrida|BB|4|9|1 Astrida|CC|6|2|1 Betacab|AA|5|4|2 Betacab|BB|2|5|2 Betacab|DD|12|25|2 Canutility|AA|3|8|3 Canutility|CC|13|19|3 Divadip|AA|9|16|4 Divadip|AA|10|16|4 Divadip|DD|11|10|4 ] (delimiter is '|'); FirstSortedValue: LOAD Customer,FirstSortedValue(Product, UnitSales) as MyProductWithSmallestOrderByCustomer Resident Temp Group By Customer; | Customer MyProductWithSmallestOrderByCustomer Astrida CC Betacab AA Canutility AA Divadip DD The function sorts UnitSales from smallest to largest, looging for the value of Customer with the smallest value of UnitSales, the smallest order. Because CC corresponds to the smallest order (value of UnitSales=2) for customer Astrida. AA corresponds to the smallest order (4) for customerBetacab, CC corresponds to the smallest order (8) for customer Canutility, and DD corresponds to the smallest order (10) for customer Divadip.. |
Given that the Temp table is loaded as in the previous example: LOAD Customer,FirstSortedValue(Product, -UnitSales) as MyProductWithLargestOrderByCustomer Resident Temp Group By Customer; | Customer MyProductWithLargestOrderByCustomer Astrida AA Betacab DD Canutility CC Divadip - A minus sign precedes the sort_weight argument, so the function sorts the largest first. Because AA corresponds to the largest order (value of UnitSales:18) for customer Astrida, DD corresponds to the largest order (12) for customerBetacab, and CC corresponds to the largest order (13) for customerCanutility. There are two identical values for the largest order (16) for customer Divadip, therefore this produces a null result. |
Given that the Temp table is loaded as in the previous example: LOAD Customer,FirstSortedValue(distinct Product, UnitSales) as MyProductWithSmallestOrderByCustomer Resident Temp Group By Customer; | Customer MyProductWithLargestOrderByCustomer Astrida AA Betacab DD Canutility CC Divadip AA This is the same as the previous example, except the distinct qualifier is used. This causes the duplicate result for Divadip to be disregarded, allowing a non-null value to be returned. |