how to convert raw data type to char

Hi Experts,

i have a problem will any one plz give me the solution

in report select quary i am checking in the where condition crmd_partner table , partner_no field should compare with but000 partner_guid

for all entries in internal table

where partner_guid = internal table belongs to crmd_partner with partner_no field

i am getting a error like data type is mismatch

because in crmd_parter table partner_no field DATA TYPE is RAW 16

but in but000 table partner_guid field DATA TYPE is char 36

because of data type miss match i am getting error

( i am working on CRM Server)

how to convert this any body please tell me the solution