append using "D:\stata\中国海关数据库\2014年海关最终\ 2014出口数据\2014.11-12.dta"
variable _金额 is double in master but str10 in using data
You could specify append's force option to ignore
this numeric/string mismatch. The using variable
would then be treated as if it contained numeric
missing value.
r(106);