As part of a large data set, 2 of my columns contain dates that basically represent the same thing, and they both have missing data in different rows.
For example:
Column A Column B Date_Start Date_Begin Column E
1/1/15 1/1/15
1/4/15
1/6/15
1/7/15
1/9/15 1/9/15
How do I combine the Date_Start and Date_Begin columns to replace the blank cells so that I get something like this:
Date_Combine
1/1/15
1/4/15
1/6/15
1/7/15
1/9/15
I've also tried Proc Sql, Proc Format, and simply copying Date_Begin across to Data_Start (seen at the end) but it doesn't seem to be working i.e. If Missing(Date_Start) then Date_Start = Date_Begin
Any help with the coding would be appreciated!
coalesce function will do it.
proc sql;
select coalesce(Date_Start , Date_Begin) as Date_Combine
from yourtable;
quit;
coalesce function will do it.
proc sql;
select coalesce(Date_Start , Date_Begin) as Date_Combine
from yourtable;
quit;
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