topic Reg:Append in SAS Procedures

Reg:Append

My_SAS — Wed, 28 Sep 2011 07:40:45 GMT

HI are there any options to append huge datasets and reduce the time

i am having two datasets having 1 crs obs each every time it will get 1 crs obs in data set 2 any optins to optimise the time

for appending i am using this command

proc append base=data1 data=data2;

run;

Reg:Append

My_SAS — Wed, 28 Sep 2011 09:01:47 GMT

is there any bulkload options for appending the datasets...

Reg:Append

art297 — Wed, 28 Sep 2011 13:01:42 GMT

I think there is if you are using Teradata or some DBMSs. See, e.g., http://www.afhood.com/blog/?tag=proc-append or do a Google search for bulkload append sas

Reg:Append

LinusH — Wed, 28 Sep 2011 13:23:06 GMT

Well, too little information here for helping you out.

Given your example code and by using the term "data set", I guess that your data is in SAS tables (Base, or perhaps SPDE?).

If your problem handles temporary tables, just be sure to add the smaller table to the larger.

If you base table is permanent:

- Bulkload: I would consider PROC APPEND as equivalent in speed (or better) than RDBMS bulkload. That is, if your base table doesn't have any constraints (especially PK/FK) or indexes defined. If your base table is in a SPDE libref, you could have indexes defined, and then SAS will simultaneously insert data and update the index.

/Linus