Infotypes

Hi,

I'm new to Hr programming. I have a requirement to print a report by getting data from below infotypes.

PA0015

PA0027

HRP1018

Can some one suggest me how to proceed. I have idea of getting data using 'Get PERNR' and RP provide from last etc....

but I'm not sure how to match PA0015,PA0027 and HRP1018.

PA0015 & PA0027 has PERNR.. but HRP1018 don't have PERNR. Also I read in one of the forum that we need to use "Select statement" to get the data from HRP1018. Also do we need to get data from any other infotypes like PA0001 to accomplish the task?

Can someone suggest me the steps to get the data from these infotypes.

Thanks.