本人小白,打算将年份+接班准备.dta合并到SEW目标+数字化转型+三会+海外背景+接班上位.dta中
输入use “SEW目标+数字化转型+三会+海外背景+接班上位.dta”
merge m:m StockCode AccPeriod using "年份+接班准备.dta"后匹配失败
Result Number of obs
-----------------------------------------
Not matched 15,320
from master 5,995 (_merge==1)
from using 9,325 (_merge==2)