topic Dynamic HTML table selection in QlikView

Dynamic HTML table selection

Mon, 07 Jan 2013 09:55:05 GMT

Dear all,

I am using Qlikview in order to load tables from an intraweb source (for which it is difficult to get direct database access). the problem is that the table reference in Qlikview is not constant. It can sometimes be @20, sometimes @19 and sometimes @21. Luckily the table always contains a fixed number of columns so I can do an if/else analysis after loading the table.

Is there a way to load all the properties of the tables on one internet page in QV? Properties like: nr. of rows, nr. of columns?

thank you

Re: Dynamic HTML table selection

danielrozental — Mon, 07 Jan 2013 17:59:12 GMT

Why don't you cicle through each table and then drop the ones you don't need.

set ErrorMode  = 0;
for i = 1 to 100
          Table1:
          LOAD *
          FROM
          [http://community.qlik.com]
          (html, codepage is 1252, embedded labels, table is @$(i));
          Let vRows = NoOfRows('Table1');
          if vRows <> 10 then
                    drop table Table1;
          ELSE
                    exit for;
          endif
next
set ErrorMode  = 1;

Re: Dynamic HTML table selection

Tue, 08 Jan 2013 08:13:22 GMT

Dear Daniel,

Thank you for your answer. Unfortunately, I have to loop over 10.000 html pages (dynamically generated) containing some 40 rather extensive tables. Loading them all is not an option 'cause that will take all day

At the moment, I'm doing some 'educated guesses' and load three tables which are the most likely and check if any of thoose correspond.