Calling format is as follows
&Option=(option)
Option: COMPARE or ASSIGN
&SrcFile=(dbfile)
DB file to use for copy/compare
&SrcBuff=(srcbuff)
Buffer to copy/compare from
&DestBuff=(destbuff)
Buffer to copy/compare to
Optional items are in the form of:
&SET_(fldname)=(expr)
Instead of copying 'fldname', set it to (expr) in 'destbuff'
&SKIP_(fldname)
Don't include copy for (fldname)
&COMPARE_RESULT=(var)
Name of logical variable to return comparison in (TRUE is Equal)
Note: extent fields are referenced using (name)_(extent) (i.e. 'request-fte[5]' would be refered to as 'request-fte_5'.