I am trying to combine 8 datasets of different patient data captured in 6 month intervals in 2 different hospitals. So, I have to combine those 8 datasets so that I have one nice dataset that I could work on. When I try to combine using data Combined; set fullextract1 fullextract2 fullextract3 fullextract4 fullextract5 fullextract6 fullextract7 fullextract8; run; I get multiple variables have been defined both as character and numeric like this: ERROR: Variable DOB has been defined as both character and numeric. So, I tried to put this in data statement for all involved variables in the individual datasets (basically trying to convert to character variables): DOBch= put (DOB, $7.); drop DOB; rename DOBch=DOB; But, still when finally try to combine using above combine statement, I still get these error statements. Please help.
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