[amibroker] not able to get fundamental data

[murthysuresh]

Hello
I am using Qp2 and running explores.
Filter=Close>10 AND V>300000;
AddColumn(GetExtraData("SharesShort"),"Sshares short");

I get 0 for the column sshares short. Not sure what mistake i am making.

I also tried to plot it
Plot( GetExtraData("SharesShort"), "Shares Short" , ParamColor
( "Color", colorCycle ), ParamStyle("Style"));


Still getting no value. 
I am using qp2 databsae as my datasource.