Transformation to look up tables in SLT

Hi,

   We are replicating tables from SAP ECC to HANA using SLT. There is a requirement to add a new column to a table Tab1 by looking up in to another table Tab2. Both Tab1 and Tab2 are getting replicated.

    Is there a better way to do it without writing a remote function module in SLT that reads the Tab2 from ECC for the look up? Can we store the Tab2 data in SLT, so instead of a remote functional call to ECC,  I can do a local look up?

Regards,

Ajay.