Solved: RE:after-before - Qlik Community

Chanty4u · ‎2016-03-18

Hi all,

I want to know the status of the document?

it means

how to know?

1)the data after_reload ?

2)the data before_reload?

3)no. of rows?

4)no.of columns?

thanks in advance:

Gysbert_Wassenaar · ‎2016-03-18

Everytime you load data you will have to create a file (at the end of the script so all your real data is loaded) in which you store how many records your tables contain at the end of that run. During the next reload you can load this data again and at the end add the new record counts again to that file. Using the data from this file you can compare between one reload and any previous reload.

Something like this should get you started:

For i = 0 to NoOfTables()-1

  LET vTableName = TableName($(i));

  For j = 1 To NoOfFields('$(vTableName)')

  LET vFieldName = FieldName($(j),'$(vTableName)');

  TableStats:
  LOAD
     '$(vTableName)' as TableName,
     NoOfRows('$(vTableName)') as RowCount,
     NoOfFields('$(vTableName)') as FieldCount,
     '$(vFieldName)' as FieldName,
     FieldValueCount('$(vFieldName)') as FieldValueCount
  AUTOGENERATE 1
  ;

  Next

Next

STORE TableStats INTO TableStats.qvd (qvd);

talk is cheap, supply exceeds demand

View solution in original post

Kushal_Chawda · ‎2016-03-18

data_after_reload and data_before_reload ? Do you mean to know number of rows before and after reload?

Chanty4u · ‎2016-03-18

for example

if i load excel data into qlikview.

i have some amount of data.

so how shud i knw?

avinashelite · ‎2016-03-18

you could use the document analyzer rite ??

or if you want to have in the script level than for every reload you need calculate the number of rows and columns and store it in the QVD so that you can make a comparison of the same

jagan · ‎2016-03-18

Hi,

Try NoOfRows() to get the count of rows in the table.

Example:

Data:

LOAD

*

FROM DAtaSource;

LET vRowsCount = NoOfRows('Data');

Regards,

jagan.

Chanty4u · ‎2016-03-18

hi avi,

i hve used below code

let before_reload=now();

//load from QVD's

Employees:

LOAD Series,

EmpID,

Identifier,

[Last Name],

[First Name],

Title,

[Hire Date],

Office,

Extension,

[Reports To],

[Year Salary]

FROM

..\Datasources\Employees_large.qvd

(qvd);

let after_reload = now();

but i dont know how can i see that defined variable values in front end?

jagan · ‎2016-03-18

Hi,

Try NoOfFields() to get the count of fields in the table.

Example:

Data:

LOAD

*

FROM DAtaSource;

LET vFieldsCount = NoOfFields('Data');

Regards,

jagan.

Chanty4u · ‎2016-03-18

did u chk the code which i posted above?

i can i see in the front end mentioned variables?

Kushal_Chawda · ‎2016-03-18

Employee:

Load *

From Table;

let vNoOfRows = NoOfRows('Data');

Details:

Load now() as Time,

$(vNoOfRows ) as Rows,

'Employee' as TableName

autogenerate 1;

Store Details into Path\DataLoadDetails.qvd;

drop table Details;

// Comment the Details Table code once you have created the QVD first time and run now the below code

Details:

Load now() as Time,

$(vNoOfRows ) as Rows,

'Employee' as TableName

autogenerate 1;

concatenate(Details)

Load Time,

Rows,

TableName

From Path\DataLoadDetails.qvd(qvd);

Store Details into Path\DataLoadDetails.qvd;

Create the Table box in front end and add the columns from Details table. You will be able to see the number of rows for that table during each reload.

If you want to do it for multiple table , use for loop.

jagan · ‎2016-03-18

Hi,

Create Text objects and put those variables or Settings -> variable Overview and check the value.

Regards,

jagan.