Skip to main content
Announcements
Qlik Connect 2025: 3 days of full immersion in data, analytics, and AI. May 13-15 | Orlando, FL: Learn More
cancel
Showing results for 
Search instead for 
Did you mean: 
Not applicable

Load file whose name has a date that changes everyday

Hello everyone,

Every night, an updated file is uploaded. It has a name like file_20150922.csv     (file_YYYYMMDD.csv) with the date of yesterday.

I want my application to point on the last version of the file eg. today, my file will point on file_20150921.csv but tomorrow, it will have to point on file_20150922.csv.

I use something like

Load

...

FROM   file_20150922.csv

Is it possible ?

Can I do something like:

From file_Today()-1  ??

Thank you for your help

5 Replies
Not applicable
Author

Yes you can use something like:

set vDataLoad = Date(Today(),'YYYYMMDD');

Load *

From file_$(vDataPath).csv;

alexandros17
Partner - Champion III
Partner - Champion III

Use a variable:

LET vDate = WeekYear(Today()) & Num(Month(Today()),'00') & Num(Day(Today()),'00');

then

Load .... Resident File_$(vDate).csv;

Let me know

MK_QSL
MVP
MVP

FileName:

LOAD

  Date#(TextBetween(FileName(),'_','.'),'YYYYMMDD') as FileDate

FROM

*.csv

(txt, codepage is 1252, embedded labels, delimiter is ',', msq);

Date:

Load Max(FileDate) as MaxFileDate Resident FileName;

Drop Table FileName;

Let vMaxDate = Date(Peek('MaxFileDate',0,'Date'),'YYYYMMDD');

Drop Table Date;

FinalTable:

LOAD

  Date,

    Sales

FROM

file_$(vMaxDate).csv

(txt, codepage is 1252, embedded labels, delimiter is ',', msq);

The above script will first find the file having maximum date as name and load it..

Anonymous
Not applicable
Author

you should use in your  script 

LET vDate= date(today()-1,'YYYYMMDD');

Load

...

FROM   file_$(vDate).csv

Regards

Not applicable
Author

I am currently doing something exactly like that, so as long as each day, the file layout is exactly the same, and only the data chnges, and the files are in the same directory, you can use a wild card in your file name

Load

.

.

.

.

FROM
[..\AB_*_Report.xlsx]
(
ooxml, embedded labels, table is Flash_Report);

based on my naming convention the data bewteen the '_', which is where the wild card is, is a date.  As long as the file is put in the directory with that naming convention the reload picks it up