How to use a variable in LOAD statement?

[#1]

Hi,

I want to load all my tables with a variable, so instead of the column names listed after the load statement I just want it to be a variable. That way I can load other tables and keep it running.

Example (Currently being loaded like this below, with database info and column name being pulled through a variable from a excel file)

There are multiple tabs and I Concatenate to MyTableName, and it works fine with using a variable for the database in the connection string.

MyTableName:

LOAD

     NameOfFirstColumn as Column1

     NameOfSecondColumn as Column2

     NameOfThirdColumn as Column3

     NameOfFourthColumn as Column4

SELECT * FROM blank;

But what I want to do is.. for example

LET vLoadColumns ()?

MyTableName:

LOAD

     vLoadColumns:

SELECT * FROM blank;

Just like the variable for database cycles through the databases I want the data that is pulled after load to be stored in a variable and use that same variable to keep Concatenating MyTableName:

Please let me know if you need more clarification.

Thanks

[tobias_klett]

List the columnnames and Tablenames in excel and read them into one field using:
Customer_Columnnames:

Load concat(columnames,',') as Customer_Columnnames
from ... where Tablename = 'Customer';

then create a variable like this:

let vCustomer_Columnnames = peek('Customer_Columnnames');

Use it in load statement like this:
Customer:

Load $(Customer_Columnnames);

Select....

[ecolomer]

You need put the $ prefix:

CAL:

LOAD

  Date(IterNo()+$(vMin)-1)   as CFecha,

  Year(Date(IterNo()+$(vMin)-1)) as CAño,

  Month(Date(IterNo()+$(vMin)-1))  as CMes,

  Week(Date(IterNo()+$(vMin)-1))   as CSemana,

  WeekStart(Date(IterNo()+$(vMin)-1)) as CSemIni,

  WeekEnd(Date(IterNo()+$(vMin)-1)) as CSemFin

  AutoGenerate 1 While IterNo()+$(vMin)-1<=$(vMax);

where vMin and vMax are a variable

[#4]

Hi Tobias,

This was helpful but, what if the excel sheet has a column named ProjectName and I want to pull those names. Each row is a different project name which should change to the next name every time I concatenate more to my Table I am creating.

[tobias_klett]

Hi Alam,

no sure if I get you right, but why not extending the Excel like this.

And the script like this.

Customer_Columnnames:

Load concat(columnames,',') as Customer_Columnnames
from ... where Tablename = 'Customer' and Project ='ProjectXY';